Seymour Duncan Twin Tube Classic

Really easy to use. Master Lo/Hi EQ for both channels. Each has a gain and drive knob. Straightforward.

I play a Gibson ES-335 into a Fender Quad Reverb with no other effects.

I set the Master EQ this way: Bass 9 o'clock, Treble at 2 o'clock.

"RHYTHM": Just a perfect boost channel. Really accentuates the sound of a tube amp being driven to its sweet spot. The range of gain is really good. At a low setting, it gives my tone a nice boost up. When you crank it, it really sings. This channel produces great tone, simply put.
Grade: 10

"LEAD": also very good, but not *exactly* my preferred tone. I set the master EQ to maximize the "Rhythm" channel, so the Lead channel suffers slightly, although that's mostly my personal preference. It's a little thicker/creamier than I might want, but it certainly doesn't sound bad. I'm looking for a thinner/harsher fuzz tone.
Grade: 8

Overall, I give it a 9 only because it's not exactly to my personal taste.

It feels really solid. The whole thing is metal other than the plastic chickenhead tone knobs (but those don't feel cheap by any means...just plastic.). Just a solid pedal, never any switching problems or scratchy pots or anything. No problems with the power supply either. It's really well manufactured.

The one criticism I have is that while gigging, it's easy to knock the knobs out of setting because they turn very easily (especially on the Lead channel since it's closer to the switches), but it's something I'm getting more accustomed to the more I play it. Not a huge issue...just a small imperfection barely (but) worth mentioning.

N/A. Although I will find out exactly what this means when the tubes need to be replaced.

I play simple straightforward, slightly psychedelic rock (influenced by velvet underground/spacemen 3/rolling stones), and the Twin Tube is perfect. I've been playing for 15 years. I used to use an SG special until upgrading to a ES-335. It sounds fantastic, and as I upgraded my guitar and pickups, my overall tone (and indeed that which was effected by the pedal) really improved.

I would probably replace this pedal, but before doing so would try to find a boost pedal that competes with this. If I could do that as well as find a more personally ideal fuzz pedal, then I might go that route, but I love the way this thing sounds, so I would probably get another one.

Cranking this pedal through a cranked up tube amp is something to behold.

It's a two channel stomp box. Volume, gain, bass and treble contols. It's pretty easy to use. the manual even walks you though how to get certain sounds it don't understand how. Very easy to get a good sound out of. I use the basic rock setup explained in the manual. I set my amp for a very clean sound and use the pedal for a rythym and lead sound. I do like it better with the volume at about 9 o clock instead of 11 as suggested.

I bought this pedal to use with a headphone power amp so I can get real tube sounds when I play at home and without annoying the wife or neighbors. Well I don't care about the neighbors that much so mainly this is ofr when I can't play my Prosonic through it's 4x12.

It took me a couple days of playing around with this pedal beofre I could get a sound I liked but then one day it all came together for me. The key is to set the volume on the pedal so that it is the same as your on your amp with the pedal bypassed. Otherwise it will either push the amp into unwanted overdrive or it will be very muddy because of the volume drop. I set my amp up for good clean tone and i use the rhythm channel on the pedal for a pushed/break up sound and lead for well lead sounds.

This pedal really responds well to single coils and humbuckers. My strats and telecasters sound awesome on this pedal. It's instant Stones on the rhythm channel. With my Fenders I like to put the gain at 3 oclock or maxed out. It really sounds like a cranked Bassman, roll back the volume and you've have a great clean tone. I've ready other reviews that say this pedal takes the chime out of their strats. I haven't experienced it at all but with the gain maxed and I dark amp I could see how that would happen. My strats and teles are very chimey through this pedal. I really like the pushed sound I can get with this pedal. I plug my Mayer fuzz in front of it and I'm in Hendrix heaven.

Now for the Paul. My Les Paul loves this thing. I just turn the gain down a little and I'm Zepplin. It's called the twin tube classic for a reason, if you love classic rock this pedal is it.

I've had this sucker for a month. So far so good. You have to replace the tubes eventually but come on it's a tube preamp. I've never heard people complain about replacing the tubes on their amp.

I don't know I'll find in a year or two i guess.

I bought this pedal to rock and I love it. It's $220 but it's the best $220 I've ever spent. I went shopping for a liitle practice amp with a headphone jack. I played all the ones at GC and left disappointed. I read the reviews and bought this the next day from MF.com I figured with their return policy if it turned out to be all hype I'd just send it back. I kept it. I run it through my Digitech RP21D into a set of sony studio monitors. I like the RP but the distortion has that digital edge, this solved the problem.

I don't normally write reviews but if you're thinking of buying this pedal, do it. The price is steep but it's a tube amp in a box, try to find a decent two channel tube amp for that price. If you like rock, blues or country this is the ticket. If you like metal go buy that SD metal thingy or buy this and give metal a rest. I'm interested to see how the new blue tube sounds compared to this one.
To resume if you can't get a good tone out of this pedal give up, you're never gonna find it. Learn to play the stereo or recorder or something.

just plug in and tweak, if you got ears you find something useful-but you need some time to find it with your rig. All rigs are different so Im not even going to try to offer setting tips.

If your looking for a BTO Grand Funk bell bottom rock n fn roll sound. you can't beat this pedal. I was actually turned off to the sound. Yes, it is tube like, but more like a cranked Deluxe Reverb-I owned a 65 Black Face, the red switch was harsher. Didn't get the sustain I was looking for. I used it as a front end for recording with nominal results. But, here's what I found recently. If you want a more driving sound, plug in a ss distortion pedal in front. You will get compression sustain, harmonic bliss. Hey, you plug your distortion etc into an amp, well look at this as a tube preamp section on an amp. I have a ss amp-Fender Acoustisonic. the big one...and it sounds great through that. I can't image how good it would sound through a real amp. My Les Paul sings and sustains like it should. That real nice sweet spot sustain where you get solid sustain with harmonics glowing all over it. Thats what Im tlaking about! And it sounds good straight into my recording preamp as well. Its now a keeper as far as I am concerned. Giving it a 9 because it did require an addition pedal or tow for me to get my sound.

Bought it used and it is still going strong after 2 years. I hear the mini tubess are designed for extended life. I don't play out any more..so I don't leave it on for long periods of time like I would if I was set up on stage. It seems very strudily build though. Maybe Im just lucky I didn't have any issues with it so far.

Never dealt with them. Nor would I ever. I have learned over the years that it is impossible to get through to a big company so don't even try. And don't act surprised if a big company gives you the cold shoulder. The mass produce these things in China unfortunately. If I didn't get a good price on this thing used. I would have went the boutique route because 9 times out of ten you can get the guy who created the thing on the phone within a few rings -that is if you call between business hours. And my experience with many of the folks is they love to talk up their products, get feedback and generally celebrate in the mutual love of music and tone pursuit. You just ain't gonna get that from a big company. Of course this is a topic for one of the forums.

9. Thats is when used in conjuction with external effects. A 6 without them. But like all these reviews, its subjective. If I had a tube amp, I may have gotten better results. But if I still have my Deluxe..or something sonically close, I wouldn't have had the desire to buy this. It sounds like from other reviewers that the "classic tone" term is dropped quite a lot when describing this puppy. And if that is what you are after-70's Grand Funkin BTO Keep on Truckin rock n roll. If that's what your lookin for then party hardy.

This pedal is very easy to adjust to taste. The global EQ is very simple - 1 Treble & 1 Bass (unfortunately no mid). Has 2 settings 1)Basic OD 2)Heavy OD. Each with a volume and gain control.

The controls are reasonabley responsive on the EQ side. Very responsive on the gain/volume control. No problem or time to dial in some great tones.

My gear: Epi LP with Rockfield Vintage HB's, Handmade Telecaster with Dimarzio Twang Kings. Amps - Randall RG75G3 and a Crate V-30 with 212 Tone Tubby Half Cab. Numerous assorted effects.

This pedal is great. It can be muddy with the Bass up and on the Neck pickup alone (however on my LP I have PAF replicas that will affect this). It has loads of power and the tube sound is rich and full. It definately has a vintage flavour to it. I've had this pedal for almost 2 years now. When I was first checking this and other pedals out, I was directed to the Fulltone OCD as being a superior pedal. At that time I didn't have a fully tube driven amp so I went the way of the Twin Tube.

Since then I've added a Fulltone OCD to my chain as well. If you are looking for more original tube sound and power definately invest in the Twin Tube. It has a more natural growl and warmth that the OCD just doesn't have. On the other hand, The OCD is much more articulate.

I seldom use the higher gain side. I find that it is just too much of a good thing.

Like most overdrives, especially ones that are tube powered, there is some noise. On the lower setting, the noise is barely audible, but still present. On the high gain setting it can become irritating.

I find this pedal great for achieving ACDC Angus Young tones. I did not buy this pedal for playing metal. In the area of Metal this is not the right effect - It is an OD not a distortion.

As I said above, I've had this pedal for about 2 years now and have never had any reliability issues with the pedal. Good thing, I've heard (not confirmed) that the replacement tubes for this thing are difficult to come by. Just something to consider (if its true).

Customer Support has been excellent. Somewhere in the packaging of this pedal, I got a 9V AC adapter. This monster takes a 16V AC adapter (if I remember correctly). I got a hold of Seymour Duncan. They didn't hesitate to send me 2 replacement(for my troubles I guess)16V AC adapters and let me keep the 9V one to boot. Thats what I call service.

For me this pedal is a great fit. I suspect that there will be others that may be frustrated with this pedal as it does not have precision articulation. I bought this thing to produce authentic tube tones - it does this masterfully. Obviously the down side of this pedal is that it lacks some articulation.

As I said above, I initially chose this over the Fulltone OCD. The OCD is a great pedal as well. However, if I was forced to choose between the two I would choose The Twin Tube any day of the week and twice on Sundays.

The only thing I would have changed on this pedal is to add a mid adjustment to the Global EQ.

When this pedal finally goes down for the count, I will definately be replacing it.

Exactly the same as using a tube amplifier with the exact same controls. Chicken-head knobs are great looking, but easy for a drunken sound man to step on while trying to point the SM-57 towards your speaker (the way you told him to) rather than towards the middle of your amplifier. Will not work with batteries.

I use a heavily modified '69 thinline through a Twin. As a backup I have a James Burton tele (w/ lace sensors) and/or a '99 Am. Std. Strat (w/ lace sensors) or Lindert Twister (w/ Dirty Fingers B/ Tony Iommi N) and/or Ibanez S-series. The 69 sounds best, so I use it the most, even though most of the others play better. I own a lot of pedals, and occasionally will bring along my Carbon Copy, m101, DL4, Fuzz Factory, Dynacomp, or whatever for use during solos, but the Twin Tube is the only one I can't live without.

Green channel sounds like overdriving my Twin, or like overdriving my '72 Super Reverb (which, to be fair, has a master volume). Red channel sounds like a plexi. With the treble turned forward enough, JCM800 sounds are possible as well, but I like to choose a happy medium where both channels sound good.

Extra special feature- this pedal sounds excellent no matter how crappy of an amp you plug it into. I get brilliant sounds out of my vintage silverface, modern Fender, even-more-vintage Maestro, modern hybrid Crate, or hundred-dollar Raven. If you are heading to your buddy's house and you don't trust his terrible amp, this will fit in your guitar case. Set one channel to clean and one channel to dirty and you have brought along a 50-watt 6L6 powered combo, whatever amp he has, be it bought at Radio Shack or passed down through four generations.

As mentioned, this pedal only will work with the included power supply. It is 'true bypass' but not 'hard bypass,' i.e. it will not affect your sound quality but will not allow you to play 'through' it backwards or w/o power.

The pedal is reliable.

The included power supply is not.

The reason I bring along a backup distortion pedal (I use a proco Rat II, which sounds nothing like a Twin Tube) is because in the three years I have owned this pedal, I have destroyed four power supplies. Sometimes Duncan sends you a good, thick-cabled one; sometimes they send you something someone who works at Circuit City soldered out of speaker wire. Whatever, all those ******** are unemployed now. Anyway, the power supply (special ordered through Guitar Center, including shipping) is the same price as a standard Boss power supply.

P.S. In response to previous reviewers who want to swap out the tubes, just learn to solder. I tried out a friend's Twin Tube with the tubes professionally swapped for NOS RCAs, and sure enough, it sounded better, but the tubes are two dollars from Ebay and the mod is as easy as changing your own pickups. I still haven't gotten around to doing it myself, but my only excuse is laziness.

As far as this specific product is concerned, the power supply is
not covered by the warranty.

However, if you can Seymour Duncan (the corporation) a few times, eventually Seymour Duncan (the human being) answers the phone. Seymour is an *** in the best possible sense of the word. Two sentences in, it feels like you are calling your buddy to see if he wants to drink a beer. Seymour is more of a friend than a gentleman to his customers; he appreciates fun more than he appreciates business. If you leave a message for him, he may respond with a prank phone call.

I play everything from punk to metal to country to blues. If I ever feel like my tone is less than excellent, it probably means I have plugged into a cheap amp rather than my Twin Tube. This thing sounds like the world's most flexible amp (read: Bogner, /13, or Soldano) but fits in your guitar case (though if you swap the chicken-head knobs for tele knobs like I did, it will scratch the back of your neck). Amazing pedal. I know a fair amount of other people who own one of these, and no one has anything bad to say other than:
-it should have firmer knobs
-it should have a better quality power supply (I understand that tube overdrives cannot run on batteries)
-independent EQ's per channel would be nice
-Relay bypass is for posers. Go for hard bypass, or learn to live with buffers.

All things considered, I know I would be unable to design a more versatile, more reliable overdrive/distortion. But for the price (within the same price range as a Fulldrive 2, Damage Control Womanizer, or Blackstar HtDual- the most comparable peers, all easier to break) nothing beats this pedal. If I lost it or broke something other than the power supply, I would actively seek out a replacement. Qualms nothing, this unit makes my friends jealous.

It Couldn't get any easier to use. The controls are self explanatory

Using a Strat, Les Paul, Tele, through a Mesa Boogie Mark IIB set completely clean. Essentially turned my Boogie into a three channel amp. I really don't think the Boogie ever sounded this good! Exceptional combination used along with a Boss CE-2 Chorus from way back and an original MXR dyna comp also from the late 70's and a new MXR carbon copy. Virtually NO noise in the chain. The classic has a very warm sound and the single bass and treble controls for both rhythm and lead channel doesn't bother me in the least. I can see how it would be a benefit to have bass and treble controls for each channel but I was able to dial up the sound I was looking for.

This is the kicker. I've only had it a few days an it went out on me completely. A couple of days at home getting use to it and one night at rehearsal. The night after rehearsal back at home hooked everything back up "DEAD" nothing, nada. I guess you can imagine my disappointment. I can't imagine ever being able to use it without a backup. I hope this was a fluke. I'm returning it to the store for exchange since it hasn't even been a week.

I'm going to deal with the store first since it's only less than a week old.

Man I really like the way this thing sounds. This is exactly what I was looking for. I really hope the next one stands the test of time.

Very easy, no need for manual.

Using a Tele into a Roland Cube 30, this thing has got SERIOUS TONE!!! It just sounds exactly like plugging into a tube amp. Am very impressed by the clean to mildly-overdriven tones. Wow! I think this is the tube solution for all solid-state amps, if you play the blues and roots type of music.

Read somewhere online that compares the "Rhythm" section to a Matchless amp - hard to believe but it's close. Of course, that depends on whether you have a decent base amp too.

The beautiful part is that you can set the "Rhythm" as a clean tone (to mask any transistor tone) and use the "Lead" for solos.

Seems very sturdy.

Mainly play blues and roots music. Really like this pedal because I can forget about bringing my tube amps to gigs and jams, and just bring this along, knowing that I will get really good tube amp sounds, plugging this into the backline amps. This helps when you need to pack light or are lazy.

Been playing for 5 or 6 years. Own several other tube overdrive/distortion effects. This Twin Tube Classic is one of my favourites. Also own more than 10 amps, both tube and transistor. Play through mostly Strats and Teles.

If you are looking for serious tube tone in a box, this is it.

Very easy to get a good sound right off the bat. Simple controls.

Didn't even read the manual.

Use this mostly with solid-state amps. Good for this purpose. Gives the ss amps a tube amp sound, including a nice tube clean sound. The rhythm channel can be set as a clean channel. So in effect, you got a 2-channel tube amp sound in a box. Useful when I feel too lazy to lug my tube amps around.

I mostly use just the rhythm channel anyway. It gets a really nice-sounding break-up tone. Really like the big and warm tones.

Bought it used. So far so good.

Mainly play blues. Own a bunch of tube amps and also a few other tube overdrive pedals. This one's a hot favourite. Put it this way, if for some reason I can play through a good tube amp, I will be quite happy to use this on a solid-state amp for my clean and overdriven tube tones.

This particular 2-channel pedal is the only tube pedal I have that can give both clean and overdriven tube tones.

very easy didnt even read the manual...

i would say this is not your average distortion pedal. It really does sound like a tube amp breaking up. I personally love that but if your looking for a different distortion sound...you might try the mayhem version of this pedal. Overall i like it. My setup is: Fender Player's Deluxe Strat > rmc wizard wah > keeley java boost > keeley fuzz head > twin tube classic > fulltone fulldrive 2 > DOD FX65 stereo chorus > Line 6 dl-4 delay > Vox AC50 CP2. I suppose the things said about the strat into this pedal are somewhat true HOWEVER...i feel like a get past that problem by NOT using the lead channel! The rhythm channel is brighter sounding so i turn it on with the fulldrive for a thicker...yet not darker/bassier sound. The lead channel will kill those highs so i stay away from that. Other than the lead channel...i think its a great pedal...i have used it live and it really delivers big tone so i give it a thumbs up...but i give it a 9 because i don't like the lead channel.

I would gig without a backup...havent had any problems and ive had it for several months now.

Never used it...however the whole deal with tube replacement sounds like it will be a hassle if I should ever need to replace the internal tubes. I read that the pentiode? tubes last much longer than say a triode tube. I dunno for sure tho. Probably not a reason not to buy this pedal!

As i mentinoed earlier i wasn't diggin the lead channel but other than that it sound great. I play at church alot so i don't need super heavy distortion sounds...but thicker than just an overdrive pedal. Also sounds great when i kick in the fuzz head :) Uses only an adaptor NO BATTERY. If i lost it I would buy it again...might try the tonebone but i think this sounds more like a amp being driven hard. BUY IT TRY IT OUT

Very easy to use.

I use it ONLY at home with my Marshall 15 Studio. Gives me the possibility to have decent tube distortion at modest volumes. Therefore it is PERFECT. I tried many things to have an acceptable crunch/lead sound at low volume. This is by far the best result I ever had. So the 10 refers only to my home setting!!

Once I took it with me to the rehearsal room and ran it with bigger amps on high volume. I guess, it was ok for the price. However, my ENGL preamp is a different league.

I have it for about six month. To early to say something.

I hate to read that one has to send it to SD to exchange the tubes. What a lousy idea. I did not know when buying it

As I said: To play at home with modest volume it is the best solution I had thus far.

Well, it's very easy to use. I've got the manual, but haven't read it.

This pedal is only suitable for humbucker equipped guitars, Les Pauls etc. Earlier reviewer was right about the strat tones and this pedal. The bell like sound of a strat does not come through when this pedal is on. If you want a dark strat tone, you could use this, otherwise - forget it. For strat players I highly recommend Dean Markley Overlord Classic Tube Overdrive. That's for strats IMHO.

There are bass and treble pots, but the treble pot is useless, since the highest frequences are always cut off, when this pedal is on. This sucks. The bass pot is useful, though. All I can say is, I'm going to sell this pedal.

My kids could figure it out.

I think this thing sounds amazing. It is the most wonderful piece of gear I own.

Only one problem. They didn't design it right. The tubes are not changeable without sending it to Seymour Duncan. also the tube specs state that they will only last up to 1000 hours and if you play as much as I do that means every 1 to 1 1/2 years you will have to send it to get new tubes. Who knows how long and how much that will cost? Just something to think about.

Have not tried to contact them.

I think if they fixed the tube problem. It would be the most outstanding pedal ever.

easy like eating ice-cream - sparse info in the manual - but nobody will need a manual (just girls read it...)

wow... it's definitely a 10 for someone who's lokking for classic sounds. Very "tuby".

This is, why I'm writig the review: it??s perfect in front of a digital modeler. I use it with a AX3000G for recordings. The TT adds tube sound... as long as you choose clean settings on the AX. The big advantage is, that you are able to use the volume-pot on your guitar again, means: turn down cleans up the tone... brilliant, a vox model remains a vox, a fender a fender etc. So try it: choose a blackface model and let the TT do the rest - you will be satisfied!

Only disadvantage is a "plop" when you change the channels on th TT, especially whenn using delay / reverb on the AX... means: plop, plop, plop... ;-)

I can live with it.

So for me, sound rating is 10! ...and damn think about the price you have to pay for it... almost boutique tone for 200 Euro

can't tell you, it's new. I guess, if it stands the first 3 weeks without an error... it will live forever. It??s electronics... and it??s made in china...

will not need it... if it's damaged, it was just a 200,- Euro deal...

I play now for 30 years... not good because I'm one of the business guys, having no time for other hobbies. So, I'm a kind of "tone-hunter", having fun with the fine noises, you can get out of nice equipment. Crazy... but I think it's a problem of all this 45-plus players not beeing pros... The industry survives only we are here and buying the products. I play mainly strats (wow, you really can spend BIG money on that...) with tube amps, (actually a small Engl) have plenty of guitars in the house and buy from time to time nice gadgets, like this pedal.

Again: you can produce a very, very nice range of sounds from clean to distorted with this pedal. It gives you the advantage to use it as a preamp or an overdrive-pedal or you can use it as a booster... very versatile. Sound quality is boutique-level, depending on the following components.

Excellent buy!

I easily agree with the most favorable & in depth opinions & reviews of this pedal, with the exception of one very big issue. The different voicing on each channel, while is very nice in every way except they "EQ out" the clearest bell tone frequency realm Strats are so noted for. This sux big time, but other than this issue, the pedal is just awesome. I'm hoping it will be refined in future productions to fix my only issue with it, but I'm only giving it a 4 out of an otherwise 10 because of it.

Pretty easy to get a good sound, seeing as it sounds good no matter what settings you use (providing you use a decent amp and guitar). Global bass and treble controls, two channels with independent volume and gain for each. No need for it, but the manual is great too. And whoever wrote it had a sense of humour... "And for Heaven sakes, don't use it while you're sitting on the can..." ...I wasn't planning on it, but thanks for letting me know...

A lot of people complain about the global EQ... I haven't had a problem with it... The two channels are voiced differently, so you can tell them apart anyway, even with the same amount of dirt on both

Playing a Clapton Strat (with lace sensors) and an Epiphone Les Paul with Seymour-Duncan hotrodded jazz set of pickups through the Twin Tube Classic and into a Vox AD30VT amp... Amp modelling program was set on the blackface (Fender Twin Reverb???), set really clean. Also used a Tube Screamer (TS9DX) pushing the rhythm channel into overdrive and liked the result.

The tone of this thing is ...unbelievable. Kinda like a mix of a Bassman and a Plexi, but not really reminiscent of those tones enough to say it's modelled on those amps. It has it's own sound. The distortion is thick and creamy, but even at high levels of gain, it's still smooth. Not much razor-edge, buzz-saw sounds, so metal players might want to look elsewhere (Twin Tube Mayhem might be a better choice). It is a little bottom-heavy, but I'm mainly using my Clapton Strat with single-coils, so I don't care...

The rhythm channel goes from clean to moderate overdrive. The lead channel picks up where the rhythm channel left off and heads into supersaturated territory. I set the rhythm channel on a light overdrive, controlling the amount of distortion by picking dynamics and guitar volume. For those of you that don't know, the Clapton Strat has a 25dB midrange boost on the 2nd tone control... I use this to puch the cleans on the rhythm channel into distortion. Then the lead channel is another story... Super dirty... It has a bit more midrange to my ears, which is good for cutting through the mix a bit more when the time comes for a guitar solo (it's called the "lead" channel for a reason!).

I wasn't really trying to get a certain sound that I'd heard somewhere else, I was looking for my sound. And I got it!

The thing's a tank. Would gig without a backup of the actual PEDAL, but I'd probably get another wall wart... Just in case. Don't trust them, and a lot of people complain about that... But then again, it is actually an amp in a pedal, so you'd expect to plug in to power somewhere... Maybe just not with the wall wart... Oh well, the tone is worth it!

People also complain about having to send the thing back to Seymour-Duncan to replace tubes... What they seem to be happy to forget is the fact that the tubes are designed to last the life of the pedal.

Never actually delt with Seymour-Duncan, so I can't say

Play blues, jazz, rock, heavy rock... Everything except punk and metal. Suits these styles fine (not sure about jazz, don't really need distortion for that...). Playing for ...a while now and have a Clapton Strat, Epiphone Les Paul, Ibanez Tube Screaer and Vox AD50VT (like I said before). This pedal blows the Tube Screamer out of the water... It's just a great-sounding tube pedal, and inspiring to play through. Very happy with it.

Easy to use, yes. Versatile, great tones, and intuitive to use. Biggest concern is setting unity gain with unit off and being able to control the volume boost in high gain mode. Also, AM I THE ONLY PERSON OUT THERE WHO DOESN'T UNDERSTAND WHY MANUFACTURERS USE SWITCHES THAT MAKE LOUD CLICKS WHEN YOU STEP ON THEM? That was the deal killer for me. It's not an issue in a live setting but if you use this pedal while recording the click will turn up on your recording.

The Twin Tube has awesome tone. It can be clean (when the pedal's off), a boost, and an overdrive/distortion pedal. It has quite a range of tone and od/dist levels via the gain. I loved the tones just hated how loud the switches were.

Didn't keep it long enough to find out.

I think the Twin Tube is a versatile and usable pedal for most players. Personally, I used it to boost and drive my Takamine Acoustic-Electrics and loved the tones and versatility. I hated the LOUD switches. Tonewise, it blows away Boss pedals, is comparable to the Pigtonix Disnortion (although that also has a fuzz circuit), the Hughes & Kettner od/dist pedal, and Damage Control Liquid Blues pedal. It's beter than the Electro-Harmonix od/dist pedals (and they use the same stupid LOUD switches as well). I'm waiting to get an Emma Reezafratzitz but have heard that's among the best. If you don't care about LOUD switches, try out the Twin Tube. You do get the benefit of actual tubes in the circuit.

I have a Twin Tube pream and I have a BIG PROBLEM,
when I play about 1h, my pedal just swich on Bypass... thats NO GOOD!!!!!
I must play with my bend on 31december... and I don't no wath to do...
I pay 280 EUR for that pedal....
wath now..?
please help me people I must find out because that happen..
I use a Fender Twin AMP, and Jackson Guitar with EMD pickup
please send me E-mail on hendrix_studio@hotmail.com
THANKS!!!!!!

Sound Is the best!!!!!!!!!!

I must say RELIBILITY IS TOOOOOO BAD...
Last week I play with my ban, my pedal just swich on BYpass....

I dont now..... I wait for the help... and I will say that layter

I play BLUES and this is a pedal just created for me :))
I play about 10 years....
I hate becayse my pedal just swich on bypass alone... and I must wait 20 min to return it on!!!!!!
I have Anything i must to have :)) with TWIN TUBE, i can make a very nice blues sound
..
I love that sound, you now, I live for that, and that's my job!!!
I have only father, he play's Guitar like me :) and he says, thats the realy nice sound..
Please people, help me to resolve my problem, I worked a three mounts to make a buy that pedal... :(( please people now I have a BIG concert on 31 december and dont now wath to do.... may I use My FENDER TWEEN REVERB I MUST SAY THAT AMP ALWAY WORK PERFECT !!! :))
and My Claskson SOLIST :))

Easy and convenient to use.

Reasonable sound, not my cup of tea. It is low noise. I've heard better pedals without tubes in them. There are videos on YouTube which give you a good idea of the sound. Which doesn't impress me. It is a decent shred pedal. It is true bypass via relays, and doesn't click when you switch it in and out.

The Chinese toroidal transformer shorted internally, taking the wall wart with it. I bought mine used, I don't live in the USA, Seymour Duncan won't send me a schematic. I kluged a transformer and got it working again.
No, you can't depend on it.

I got a reply, no help.

It sounds a little muffled, I can't get a lead sound of it I like. Rhythm is fine. Easy to use. Unreliable. There are better, cheaper battery operated pedals out there.

It's like an amp, but on a pedal.

I really liked it in the store, at higher volumes it still sounded real good, but I didn't like it quite as much.

Here is the problem. I bought one a few weeks before a show. It died on me during a show, and it didn't just quit turning on, it cut out sound entirely bypased or not. That's not good. But I really liked how it sounded so I took it back to GC and they gave me a new one. Been using the new one for a couple months and during my last practice it started cutting out, and I had to remove it from my pedal board. Needless to say it wont be going back on... It's too bad, I like the effect a lot, and I love seymour duncan as a company, but I can't have something unreliable in a live situation.

Havne't delt with them. The people at GC were actually pretty nice. We'll see what happens when I try and return it.

This is tough. Liked how it sounded, the features were good, can't use it anymore because I don't trust it. Too bad.

Quite easy to use. Almost responds like an amp preamp.

Using this pedal on numerous live situations, I find the pedal sounds very transparent and overdrives my amp's preamp nicely. Nice juicy sounding compression and drive. I like the sound much more than solid state pedals.

No problems after months of steady gigging/rehearsal.

Never had to deal with them. I get a sense of security knowing the Company is well established.

I would definitely replace this pedal if lost or stolen. Definitely a permanent addition to my sound pallet.

This is extremely easy to use. You dial up the sounds you want, and voila, it rocks.

This turns any clean channel on an amp into a powerhouse of three channels, all of which sound good (that is assuming your amp is decent in the first place)

The manual is basic. There's no need for a complicated manual, you have overall tone controls, which work well, along with volume and gain controls for each channel.

The sound quality is awesome. The rhythm channel is supersonically sweet. This has a nice low range to it (subject to using the tone controls). It fattens up my guitar sound perfectly. It seems to round it out into a more musical tone, on all pickups. My pickups are two Kinman 62s in neck/middle, and a Seymour JB humbucker in the bridge.

The lead channel is a heavy duty overdrive, good for most lead sounds. I've heard it described as 'buttery' - that seems to fit. It is round and smooth, and sweet sounding. Both channels are affected by the single tone control. This has annoyed me on amps in the past but is works really well on this pedal.

It is also very quiet in operation. One thing I have noticed is that it seems to make the reverb on my amp sound a bit sweeter- I have also had to turn the reverb down a bit, and it sounds great. I think this might just be that the tone hitting the amp is a bit fuller.

Here is the other BIG benefit of this pedal (apart from the sound).

Most compact time based pedals (delay/chorus/modulation) sound great in an effects loop. Most amp effects loops don't cater for standard pedal based signals, and it can be problematic using them in an effects loop. Also, running pedals like reverb or delay into a distorted amp can sound awful.

The Twin Tube Classic gives awesome tone, and is designed to go into the front end of an amp. This means that you can put your delay, and chorus/flange etc after the TTC and before the amp, with complete sonic compatibility. Running these effects between the TTC and a clean amp gives great results.

You can, of course keep things like fuzz/compressors/tubescreamers and wah in front of the TTC.

The TTC also really responds to picking strength and guitar volume settings with great dynamic punch and subtlety.

I give this a 10 as it has solved my effects routing problems, and left me happy. - but....

I have had to send this back to the supplier - it lasted a couple of days, and went fizzy and died.

This is going back to Imuso.co.uk today, and I should have a replacement in a couple of days.

I'm willing to assume that this is a one-off faulty product. There are not too many bad reviews for reliability here, so I'll give them the benefit of the doubt.

This was made in China, where I assume their manufacturing and quality control is as good as anywhere. I'd trust Seymour Duncan to get this right, so I'll stick with my assumption at the moment.

I'm not putting a low rating for this for this reason.

Never had any dealings with them. I've had a JB humbucker in my guitar for possibly 10 years now, and I assume it will still be rocking long after I'm dead.

I'll give this an 8 overall for all the good reasons I've listed.

This is an awesome pedal. I run the guitar into a Crybaby wah (completely gutted and rebuilt/modified by me) >> Ross compressor clone (I made this as well) >> Tubescreamer clone (Mine as well) >> Twin Tube Classic >> Line 6 Echo park (I couldn't make a delay that will do this) >> Boss CE-2 Chorus Clone (Yeah, I made it) >> MXR Phase 90 clone (Mine too) >> Tech21 Trademark 60 amp mostly on the clean/Fender channel now.

I've been playing more than 20 years and never had such a great tone as now with this pedal. The rhythm channel is worth the admission price with this one, the lead channel is an added bonus.

Could not be easier. Two channels, two footswitches. Attention, modellers addicts : you will have to practice the lost art of getting a sound without 24 amp models and 120 presets to go through. Within a half hour, you should have found the two sounds that you will add to your armoury. The dilemena is this : do you keep the rythme channel for a juicy tube clean sound, ou do you use its crunch potential ?

I use it with an Epiphone Les Paul with coil-splittable Di Marzios, an Ovation Deacon, and several other electrics. The sound is rich, very much 70s rock, but not Marshall like. I chose this over the H & K Tubeman, that I found harsh. It's sensitive to volume control manipulation, and splitting the humbuckers changes the sound like it should. Noise is really low.

Don't know. Did not take it to the gig yet.

It works, so no opinion.

I play mostly classic rock and hard rock (Led Zep, UFO, Sabbath) but also some Yes and poppier stuff. I like my clean sound warm and my distorsion fuzzy, with a humming low end, but with distinct pick attack. I have been playing for 15 years now, and have owned a dozen guitars and 3 amps. I think the sound is excellent, unless you like piercing treble ou scooped mids, that will not be available here. Better than a distorsion pedal, cheaper than a boutique preamp, truer than a modelling gizmo.

This pedal really is amazingly easy to use. It has good sounds all over but as it said in another of these reviews the tone knobs could use more breadth. They've made it so it can't sound bad but at the same time limited what it can sound like.

Sound is awesome. I read somewhere that you can use this to make your solid state sound like a tube amp.... it doesn't. Sounds better than any solid state ever could but plug this into a tube amp and the overall sound is magnificent. I play with a strat and a white falcon into a mesa subway blues and it is the closest thing to heaven on earth.
I tried this with friend's guitar that had p90s in it and it was really noisy. I think maybe the frequencies out of the pickups just didn't gel? But with either of the other two no complaints in the slightest with the sound.

Seems reliable, I think these tubes seem really good. As a pedal it's going to get kicked more than an amp so the fact the tubes are resistant to vibration (ie I accidentally dropped this while it was on. Hard)But don't like that you have to send it back when the tubes eventually need replacing.

no idea

I play all sorts of things and between the pedal and setting the amp up even a little dirty, the twin tube can sound like anything. It responds like a tube amp and I think that while amps can come and go this pedal will stay a consistent part of my rig. To say what's already been said a power switch would have been great but the pedal makes up for it in everything else. I've tried lots of transistor OD and distortion pedals but they've all sounded fake or just used them as a bit of a signal boost but this pedal is something beautiful and definitely worth getting. I'd get another if this were lost or stolen without a second thought. Have also used it to warm up mic'ed acoustic guitar, with the gain low sounds really nice, though with volume too much becomes a bit midrangey. Try one before any other OD/Distotion pedal.

Very basic, you have the same controls you would find on your amp.
Bass,Treble,and two channels with gain and volume control. The only thing thats missing is a Mid control. So it's very easy to get a great sound from it.

This has got to be one of the best distortion pedals around. It really just sounds like I added two great channels to my amp. I use it with my peavey penta half stack, and ultra tube. It sounds great through both. It's very warm, and is not really a heavey metal kind of distortion. Great for me since I play blues and classic rock. The first channel sounds like a marshall plexi turned up half way. The second channel sounds like you turned it up all the way. I use my EJ strat more than anything, and it really thickens up those single coil pickups. My les paul and firebird sound great with it too. It's almost just an extension of my amp, cause it doesn't color your amp too much. It warms it up and sustains for days.

It seems to be very well built. I've been using it for a few months now and have had no problems with it. And I use it every other day.
The only problems that I could think of happening is if something goes wrong with your wall wart your not gonna be able to use it.
Other than that it's built like a tank.

Never have dealt with seymour duncun, I own one of their pickups and it still works. I'm sure they have good reputation and want to keep it.

I have been playing for over 8 years now. I play blues and classic rock, and this is a great match for me. If it were stolen I would definetly get another one. I use my vox wah, and sometimes plug in my friends old boss flanger. They both sound great with this pedal.
I love the fact that it is very basic and easy to get a great sound from it. I looked into getting the tonebone,damage control,and vox, but this just seemed to be the best deal. If your looking for a pedal with great tube overdrive, you should look into the twin tube.

Actually is too easy to set up a good blues tone. The independent volume and gain controls for each channel gives a lot of flexibility. Anyway, as I am here not to make publicity, I see the following improvements points for the use of the Twin Tube :
- Include a mid control: The frequency range between 200Hz and 2Khz has no control, so you have to make mid correction with the amp mid.
- Include an ON /OFF key: Always when you need a brake you have to plug the SFX03 off from the wall, otherwise he will keep its working temperature (that is high!!) and therefore "burning" its useful life also under Bypass condition.

Here is all about expectations. I am a blues guitar player using a Gibson Lespaul Standard 59' with a Mesa Boogie Express and I just love the tone from this combination. My target by choosing an effect pedal was to add more flexibility with light distortion without loose my original tone... and the SFX03 gives exactly this. The first channel works as a boost keeping the amp warm and the second channel add the blues distortion. Before I got this preamp I did some research and comparison with other great pedals (BluesDriver, Bluesbreaker, Tubescreamer, Big Ben) and all those work very well but the problem is that they do not preserve the orignal tone. If you do not have a great tube amp or if you want to get only a "standardized" tone then maybe one of those can satisfy you.

My preamp is quite new so it is hard to talk about reliability. I have learned a lot about the 6021 tubes and , talking as an electrical engineer, I confirm that the useful life expected for those tubes is quite higher than a standard 12AX7. However I still have concerns because the tube garantee from Seymour Duncan is only 90 days.

No support was needed up to now.

As I said before, it is all about expectations. For a blues or a classic rock tone I do not see competition for the Twin Tube (maybe the V-twin from MESA if they decide to produce it again..).
If you are a "Seek and Destroy" kind of player I would recommend you to go to the transistored pedals.
Personally, I believe a great tone is defined by the guitar and by the amp. So I suggest you to search your musical identity (and spend your money) with the right guitar+amp combination. Only after find this identity than I totally recommend you to try the Twin tube ...