Koch Twintone Combo

Same as below. Single 12 Jensen rated at 90 watts. Clean and Drvie channels with their own seperate eq. Drive has more controls though like the gain knob and a presence control which I wish to heck they would have included for the clean channel.

Currently, this is my only amp. Powerwise, it has plenty of headroom for me. The 90 watt Jensen, I'm sure, has something to do with this. On clean, you can turn it up very, very loud and it will hurt your ears before you will experience break-up.

Some other features that are cool are a master volume in the back that serves as a psuedo boost function when using the foot controller. Reverb is in the back too, which is fine. I still like the layout of the Multitone better, but for the money, who's really complaining?

Currently I'm using an Ernie Ball Axis Super Sport with MM-90s, a Paul Reed Smith Custom 22 Soapbar, a Guild Bluesbird and a Fender Strat. Overdrive LOVES any of these guitars I introduce it too. Particuarly the soapbar pickups. Very clapton-like blues from his "from the craddle" album. Turning up the gain gives you virtually any range of distortion you want. This amp is biased towards the mid-range, so I'm not sure about the scooped out stuff, but to my ears, it can give you absolute over-the-top if that's what you are looking for. I prefer a little dirt and really love the way the drive channel reacts to my guitars. Strat sounds good too.

The clean channel is clean, but this is where I'm a little disappointed. Where the drive channel sports a presence control to allow the user to adjust higher or lower frequencies for more or less warmth, the clean channel does not. And with humbuckers in the bridge position, I find the sound to be somewhat harsh leaving me to back off on the treble and mid-range. I had a Delux Reverb Reissue that did the same thing and I wonder if it's just the Jensen speaker or if it's the way the amp was designed. One feature that helps to fix that is it has a high and low input and using the low input (generally for active pickups) fixes this to a degree. However, switching over to the drive channel in the low input causes you to loose the neat harmonics the lead channel gives you in the normal setting.

Believe me, this amp does not sound bad by any means, it's just a little harsh and burnt sounding with humbukcers. I don't know if this can be corrected by a speaker change, but I hate the thought of changing something out when you've paid some bucks for a nice amp. Furthermore, I don't gererally play my humbucker clean in the bridge, so it's not a super huge deal. I guess that's one thing about the Riveras. You have a presence and focus control for both channels which really comes in handy for a quick tone adjustment. On top of the rest, the guy down below who just absolutely wants to marry his Twintone.....Good for you!....But I agree with the guy he disagrees with. I don't find a huge tonal variety when moving the knobs around. You get some, but much less than other amps.

Drive channel can't be beat. However, the clean channel is a little brittle and harsh for my taste, so instead of a perfect score, it gets a 9.

Well built and works every time.

I've emailed the Koch website several times and have gotten very quick and positive responses. These guys are a class act.

I've thought about selling it to get a Rivera so I could have a warmer clean channel, but I just don't think I can part with the drive channel. I had a Trace Elliot Speed Twin that had a great lead channel too, and I remind myself of letting that amp go when I think of selling this one. Another reason I don't want to part with it is for an amp so versatile and powerful, it's also very very portable. Every time I think of getting a 2-12 combo or a head and a cabinet, I think of weight and a bad back. Sure, some amps make better furniture pieces, but if you need an amp to take with you on practice and gigs and have a small car, this amp is really hard to beat. I may try changing the speaker and seeing if that helps the clean channel warm up a little bit, or I may just try and break the Jensen in a little bit more as I've heard this is a common practice with Jensen Speakers.

At any rate, this is a very nice amp. Professionally built and has some very strong endorsees. Paul Reed Smith seems to like his Multitone and there is a growing list of other prominent guitarists as well.

I think if this amp were stolen, I'd try a Rivera Quiana or Fandango out or I'd try the Gibson Goldtones out. I like EL-84s and Class A amps, but I don't know how long the marriage would last with me trying to adjust knobs that are on the floor in the back of the amp. The Riveras are very nice, nice looking and have plenty of controls to adjust your guitar and amp to. The only problem is they've gotten crazy expensive in just the past couple of years. I've heard from a Rivera dealer they are now selling all Rivera amps at list price....I saw a Fandango go up nearly $300.00 overnight, which kind of turned me off.....And now you have to pay what they advertise on the website. Can you imagine if Gibson did that with their stupid list prices? So, to re-phrase, a used Rivera might be worth looking into.

If you are looking for a versatile amp, this is a good choice. I don't like the brittle clean, but the drive channel is something to be respected. I haven't found a broader gain control on any other amp I've played and it will serve this model well. For those looking to spend a little more coin and want more options, the Multitone is a great candidate to consider also.

New amp with all the control knobs for each channel right there in front to make for easy tweaking and adjustments. Reverb and Master are located in the back, but with either of those, I always just set and forget, so having them in the back is no problem. Nice footswitch for allowing you to go from clean channel to OD channel and an additional switch to activate the Rhythm/Lead volume, which is actually the master volume control.

I kind of wish the master control had a solid knob like the reverb, which would allow quicker tweaking in a live situation, but it also keeps it from being moved accidentally when you are reaching behind for something else. All in all, the features are great and the amp is built wil absolute class. I've never seen an amp so well built in all my life. The EL-34's are soundly protected with a metal grille that protects the tubes and your fingers when they've been on a long time. I also really appreciate Koch placing the power and standby switches in front as you now don't have to reach around the back and risk burning your hand on the tubes. The standby is also very very quiet when activated protecting your speaker from the annoying pops that happen when some amps are placed in standby.

This amp is extremely versatile and has a great sound which I will get to in the next section.

I've had an old Bassman 10 that I moddified to blackface specs and a Delux Reverb Reissue, along with a Trace Elliot SpeedTwin. The fenders had the best clean, while the Trace Elliot's gain is yet to be matched. The only problem was getting the versatility. Pedals could help the fenders while the Speed Twin's clean left much to be desired. So, I had sold both the fenders and the Trace Elliot and tried to get a Rivera. That's when I stumbled across the Koch. Thanks to a helpful employee at Corner Music in Nashville, he suggested I try the Koch they had. I had read about the newer vintage model they came out with and saw the good things the editor had to say about it. So, knowing the Koch was a high-quality amp maker, I did not hesitate the try the Twintone out. Needless to say, I quickly lost my interest in the Riveras and started focusing on the Koch. Main reason was the simplicity to operate and still get great, versatile tones. The riveras were all very nice. But, talk about tweaking. I felt like I'd have to tweak something for every guitar I have, when the Koch just seemed to sound good with everything I plugged into it without really having to do anything. In addition, the owners manual gives some helpful illustrations for people looking for a starting place with different sounds and styles of music. My recommendation is you just put everything equal at 12 o'clock and do your own tweaks according to the guitar you have the the style you are trying to accomplish.

Like the gentleman below said, it does have an old ampeg clean to it, but it also resembles the delux reverb I had. With the master volume all the way up, your bridge humbuckers can be a little harsh on the clean channel, which is much like my DRRI. However, this is where the Koch excells. Simply adjust your master volume, engage the switch, and you have a practice room volume that sounds great without being too harsh or too loud, which was always a problem with any fender or boogie I owned. The clean, in my opinion, is on the bright side, so there is no need for any push/pull knobs to brighten up the sound. Want it darker? Simply back off your treble and increase your mids or whatever you want. Unlike an earlier review, I think the controls have a lot of tone shaping. I just think the amp sounds good any way you want to put the knobs. The gain channel is great also. You can get a very bluesy gain to about the 10'oclock position. After that, hold onto your hat because the gain becomes very extreme producing harmonics and overtones you wouldn't expect from an amp with such a great clean channel. Usually you either get a great clean with a thin sounding kind of crappy overdrive, or you get a great overdriven amp with a marginal clean sound. Not with the Twintone. From clean to extreme, it's all in here. And honestly, I sold my overdrive and distortion pedals because I don't need them anymore.

I also feel the most important component of a guitar amp is to really accentuate the true tones of the guitar you are playing. What I mean is with the Bassman, all the guitars I have sounded good, but there was a slight un-inspiring sense to it all. Meaning all my guitars seems to possess a similar sound when plugged in. It was a good sound, but as I said, I just couldn't get inspired with it. On top of that, going from 1/2 to 1 on the volume nearly blew me out of the room and I'm sure the people that live above me didn't appreciate me wanting to play at night. Fenders are notorious of having a very loud volume at lower knob levels. This is where the master volume is really beneficial. Not only can you get the amp to distort early on the clean side, but you can play at acceptable levels when at home. Anyway, back to my point. With the Koch, I noticed completely different tones with every guitar I plugged in. My P90s sound like P90s. My strat sounds like a gift from God. My humbuckers are loud but very toneful, and my ASAT classic sou

Shoot. Just look at the 11-ply Birch ply cabinet and see if you can tell me of another manufactures that builds with this kind of construction. In addition, I've never experienced any rattling while playing, nor have I had any failures. The amp runs hot, but not like my Delux Reverb that I feared would always catch fire while playing. The circuity and tubes are all well protected and the amp is as quiet at a mouse with no extracurricular noise to speak of.

An absolutely fantastic and well-built amp. And the price is amazing to the quality ratio.

I had a simple question about the extension cabinet, and withing 20 minutes, I got an email back from Edwin Kool at Koch. Very helpful and polite, but also I couldn't get over how quickly I got an answer. Try doing that with Gibson. (I have) and see what you get. I've heard Rivera is also great with customer support (I'm mentioning these as these are larger amp manufacturers, which is all the more impressive of their response time).

With the service and support, I may be partial to Koch for life.

Now, you see what I paid and think........expensive. Well, let me ask you this. How much did your guitar cost? I'm asking because for the longest time I've had really nice and expensive guitars while playing through a $400.00 amplifier. While there's nothing wrong with that, I thought about applying the quality to quality ratio. If you get what you pay for with higher quality guitars, then why wouldn't the concept apply to amplifiers. In fact, I truly believe the amp if by far the most important piece to your sonic puzzle than the guitar. Sure, you want playability and quality electronics on your guitar, but if your amp is crap, then your sound will most likely be crap. And I'm not insulting people that want to get a lower cost amp at all. They have a lot of great sounding amps that are more affordable, but my recommendation is to hold off on another expensive guitar and get a high quality amp. And high-quality doesn't necessarily mean boutique. Point to point is great, but not at $2,500.00 If circuit boards sounded so bad, then most of the main manufacturers would not be using them. I've never played a Rivera that sounded bad and they use circuit boards. Nor have I disliked any of the Fender reissures that use circuit boards. Put the Reissue to a real '65 and blindfold yourself. You'll be hard pressed to tell me which one sounds better. I think the circuit boards offer more reliability and consistency. As long as the boards are of high quality and the soldering points are done with care, your circuit board amp should last as long and sound as good as your point to point wired amp with reliability nodding to the circuit board. Pots, jacks, wires, sockets are all factors as well. Using those parts will afford you better tone and reliability. All which Koch uses. Just go to their website and see for yourself.

Anyway, I'm rambling, but I'm so excited and happy with the Twintone, that I am now contemplating getting either the TS-112 extension cabinet or the Rivera LosLowbottom subwoofer to compliment the 50-watt combo. The subwoofer makes more sense as it will nullify getting the multitone and really increase the bottom end (notorious with open-backed single speaker combo amps). For now, the Twintone sounds great by itself. It's extremely well-built, compact and easy to carry and load in your car. I had an original Boogie Mark I and while that was a cool amp, it was a bear to tweak and a beast to carry.

If you're looking for a high quality amp, that really is, in my opinion, a steal for the money, you should consider the Twintone. At least try one if you can find one in a store near you. I think you'll be completely blown away.

Same as all the other reviews....got it used , in mint cond. from another player. 12" Koch/Jensen speaker...

I have been playing Rivera's & Demeter's for the past 5 years, and both those amps try and stuff Fender clean with Marshall crunch into one amp. The Rivera did the Fender best & the Demeter did the Marshall best, but this Twintone does its own thing. The clean side sounds like an old Ampeg to me, and thats a good thing. The drive side can do a close Marshall type tone, but also nails a modded Hiwatt to the Tee. It also can do the modern stuff like Soldano & Bogner, but it has a nice vibe all the time, it seems to work with you. I use P-90 guitars, and they don't like many amps...they love this amp..I run the combo into an EXT. 2-12" cab with vintage 30's. I can go from SRV to Van Halen with no trouble at all.

seems to be built right, its like they took a Rivera and made it better....

I have owned over 300 guitars, but i don't change amps much. I like this amp alot, and for the money it blows away alot out there. I was looking for a different kind of sound, lets say a better fender/marshall type thing, and this amp delivers it in spades. I did read all the reviews on harmony central before i bought this amp..Thanx...

Purchased brand new May 2001. Two channels, one clean with low, mid and high controls, and one overdrive with low, mid, high, presence and gain. Reverb is on the backside (bad idea) and applies to both channels. Also got an effects loop, headphone jack, recording jack, nice footswitch, a "rhythm function" switch, and the possibility to switch from 50 to 25 watts. Main controls are on the frontside, slightly tilted backwards, which is as it should be; not like some of those idiot Fender amps, with reversed controls on the top backside. It's simple to use, but is still very versatile.

My setup is very simple: I have a PRS Standard, which I run straight into the Twintone, or sometimes through a Zoom GFX-8 multi-effect. I play mostly classic rock, blues, some jazz/fusion. Clean channel is clean all the way, and does not break up. It does not have that Fender sparkle, but it is rich and well defined. Overdrive channel is great too; you get anything from a "clean sound with an edge" to screaming high gain sounds. Although personally I would prefer a more vintage/ blues type of overdrive, but that's entirely a matter of taste. With the volume at a high level and the gain low, you get a nice compressed clean sound, a la Shine On....With High at 0, Presence at 10 and Gain at 6, you'll find yourself in Gary Moore territory: overdrive with loooong sustain. Amp is very quiet too. Spring reverb is excellent. The tone controls have no dramatic impact; maybe too little impact, really, but the upswing is that you can't find a bad sound on this amp. The character of the Twintone could best be described as "neutral"; you could also say that it does not have an instantly recognisable sound of its own. It does just what an amp should do, being amplification of sound, leaving the sound of your guitar (and fingers) intact. I would imagine that this amp appeals especially to people who are not restricted to one specific playing style (like blues or jazz, or metal), but want to have one amp that can be used for multiple purposes. What is fairly unique on this amp, is that you can get excellent sounds out of it (even overdriven sounds) at low volumes. I do not gig and use it only as practice amp and some occasional jamming with friends, so this was an important feature for me. In fact, I traded a Fender Hot Rod Deluxe against this baby; I did like the sound of the Fender, but it was way too friggin' loud for use at home - the clean channel was hardly manageable, and the overdrive channel was simply unusable. All in all, although I hate to rate with 10's (nothing's perfect), I have never found a better unit, in spite of my efforts in my ongoing quest for ultimate guitar tone....

Sturdy built, never had any problems. I would be surprised if it would break down.

Never dealt with them.

I've been playing for 20 years, but mostly acoustic. For the last three years, I have focussed more on the electric guitar, although I do not have time to play much. If this amp would be lost, I'd probably buy it again; at least I have never found another amp with the same qualities: rich tube sounds on both channels, good tones at low volumes, wonderful reverb, and surprisingly versatile. I have tried many others (Fender Hot Rod (mentioned above), Fender Blues Junior (good sounds, but single channel, and noisy too), Trademark 60 (crappy solid state sounds), Mesa/Boogie, Marshall, Laney, Line 6 etc., but no tube amp offers the same quality and versatility. It's not cheap, but worth the money. Nothing to wish for, then? Oh yes. My ideal amp would be construed as follows: Fender Hot Rod Deville clean sound, Cornford Harlequin overdrive, Twintone spring reverb (control on the front, please) and Twintone volume control. Since I believe this has not been invented yet, I guess this Koch amp is the next best thing....

this amp was made in 2002. It's extremely versatile for bluesrock, metal, wedding and funeral music.
It has two channels and footswitchable volume boost.
Amp is switchable from 50 watts to 25 by internal power soak
wish it was cheaper

les paul, strat, upgraded yamaha pacifica, jazzbox, they all sound great, especially the greater output guitars
It rocks like nothing has and ever will rock. Suddenly you can play things you never thought of. It has a surprising Van Halen Brown Sound and lays somewhere between a 5150, boogie and marshall. Low gain settings are nice and crisp and controlling of gain with guitarvolume is for once really effective, so you do not need to touch that footswitch.
The clean channel is very fender tough not so twangy. It's beautiful and very useful anyway.
Amp is dead silent, even at high volumes.

dunno yet

Live in holland so I don't presume it being a problem

Play for 10 yrs, owned or own a Boogie caliber, marshall JTM, champ, peavey classic.
If it would be stolen I'd be broke still.
It looks beautiful.
Buy one.

The amp was produced in 2001-2002, I believe. Serial H0838. It has a mixure of Marschall and Mesa

voicings. There are two channels (Clean/Distortion). It has rhythm pot on the back, to set a

lower volume for rhythm. It is footswitchable and works in both channels. The other switch on the

obviously for channel switching. Combine it with a FX unit, that has amp switching capabilities,

and you are all set for.
It has a headphone out, with a good response. There is a line out. It has a reverb with a dial on

the back of the amp (one setting for both channels).
It has a protection against speakerless operation (powersoak), which I doubt that it will work if

you only plug in a plug...but who is going to do that?. It has a switch for 4 and 8 Ohm, and it

has a special lower volume (using the internal powersoak), which works quite fine. Although It is

still loud even at lower volume settings (Hi-gain).
It has only volume, no gain control for the clean channel. I didn't like that but it is

interesting to tell that the amp goes fairly loud, with little distortion on the clean channel.

It is followed by Bass (which does not do much), then Mid which works only little and treble

which works, but not in a very drastic frequency response.
The lead channel has gain ("goes up to 20") :-) , volume, presence, bass, mid and treble.

Especially presence has a lot of influence on the top character of the sound. The rest has less

impact.
A feature of the amp would also be the punching low that comes out of the speaker. Already at

pretty low volume is starts pumping very strongly.
It has an Passive and Active in. I tried both, the character became more neutral on the Active

in, but since I have passive pickups, I only used the Passive in.
It has a serial FX loop and a removable power cord. The speaker is a GV12-90, marked Koch, made

by Jensen. Inside the combo is a full length reverb at the bottom (which sounds excellent btw)

and some straps to fix your cables and pedal, to prevent the cables and pedal jumping around in

the cabinet during transport.
It has a strong cage around the 2x EL34. The preamp tubes are open, but more or less protected by

the conus of the speaker, by blocking the opening under the EL-34 cage. The pedal will have a

hard time hitting these preamp tubes.
Everything is nicely (hand) crafted and looks very solid and professional. Oh, on the back is a

switch for clean/lead channel, in case you want to switch manually.. if you ever use something

like that.
It has an excellent balance between features and size. Although a little heavy, it is still quite

portable. It smells like paint in the beginning, but that will disappear after a while.

I used a Patrick Eggle with Semour Duncan pickups. I played through Spectraflex cables. Sometimes I use some lush or mild Chorus or vintage type of delay. As (additional) distortion pedal, I used a H&K Tubeman for some tests.
Music style is alternative rock. Modern distortion is wanted and clear powerful overdrive for lead. I was looking for a deep and warm clean, like the old boogies. The amp delivers a similar dreamy, dark tone as the Mesa/Boogie and somehow also reminds a little to the Marshalls. Also punching low of the Fenders can be found in this amp. [But a whole fender sound is not quite in there]
The clean channel is compressed, but does not distort much at all. Impressive. I guess the volume control comes after the gain stages. I found it very sad not to have control over the gain; I would have loved to play with gain a little,depending on the guitar you use. Strange maybe, but for clean I find a gain control extremely useful.
Unfortunaly, I found this a little too dark sounding in the lows. Some lower tones sounded numb. [on the clean channel]. It has a nice crystal sound though for the upper frequencies.
The distortion was a sort of old fashioned Marshall with a little more highs, like modern distortions have. They are ok, but not modern enough for what I want. The voicing in Clean and Lead channel are sort of fixed. The Presence has some influence on the lead sound, but the voicing is very dominant. I didn't like the tone. It was very well defined, but not what I was looking for(very subjective..). The leads are not very noisy, just like Everything on the amp, it is very professional.
On High volume the amp does not change much in character, although it comes a little more too life. The build in powersoak is not as strong (low volume) as you would hope for, but sounds very good.
The reverb is very beautiful. I am used to the half size spring reverbs. This one is very well defined and makes you wonder how spring reverb can sound so natural. You only need a little in the mix (up till 3), since the reverb settings at 10 are really extreme (you'll probably never need that).
If you are looking for the distortions that this amp produces (old fashioned with a modern bite), this amp will blow you away.
A really nice and feature is the rhythm volume on the back. Just set it (the pot on the back), during sound check and you are ready to go: backing clean, lead clean, backing raw, lead raw. It is all possible on the foot pedal with just two good positioned switches. [one switches between rhythm/Max Volume and the other between the two channels]. Put your foot sideways and you can switch any way you like, instant. This convinces of a good, stand alone product. It would have been an amp for life, but I just didn't like the voicing.

The amp worked fine from beginning till the end. It looks sturdy and feels very professional. You might want to get a flight case for it, when you go gigging a lot. The tubes are well protected (especially the EL-34s).
You probably don't need a backup, but spare tubes and fuses would be nice. (If you gig a lot, you want to have a backup anyway, for the gigs...). Excellent equipment.

I have heart the service is excellent; If you are close to the Netherlands, you bring it in if needed and they will help you very well.

It's an excellent amp. If you like the voicing, you can stop looking any further. Top quality for a nice price.
I played a lot of non-standard brands, and this is one of the best in the more affordable price range.
I miss the gain and a presence control in the clean channel. The rest is very workable. The headphones out is okay and the powersoak/speaker protection are extremely useful. The rhythm volume pot still produces a very good sound and makes the amp grown-up.
The Koch has been compared with a .50 caliber from Mesa/Boogie by using a special switch and identical cables. I found the Boogie sound better for both lead and clean (very subjective). Only for the rhythm distortion, it sounds more defined. It is also much more flexible than the Boogie. I would not trade it trade the boogie for the Koch; so I returned the Koch with a little troubled brain. But in the end it is about sound, and I simple liked the Boogie better on that line (the heart). The Boogie had a little more character at higher volumes.
If you are in doubt, try the Koch. It's an excellent amp and very affordable. It probably won't let you down ever.

Foot switch, efx loop, reverb, clean / od
Handle to carry the little beast.

I use a Les Paul Studio Lite - hum sing hum. My influences are King Buzzo, Kerry King and Trower.
Great tone on the clean setting, I use my ZVEX Fuzz Factory on this setting and just rip a new one in the 60s ass. Best fuzz pedal out there( that is another story). I can take the clean channel pretty high without grit and grime. Not windex clean, more like dishwasher clean.
OD channel- made me get rid of my distortion pedals. I had a Boss MT 2, OD2 and a Rat box - GONE! This is my tone here. This is MY tone. I like the harmonics, Pulling back on the vol knob on my guitar can create some neat variances in playing and attack. More towards 20 on the gain and you can get the Slayer sound easily.

I have found that the less knobs is more theory really makes a difference! I have had this up to 7 so far and it wanted more.

I had a tube go out in the pre amp, took it to Guitarville in Seattle and had it fixed right away.
Everything feels solid about this lil guy!

Emailed the company, got a response. One year warranty.

My set up is simple 91 Les Paul, Line 6 Filter Modulator, E/H Guitar synthesizer, ZVEX SEEK WAH, ZVEX FUZZ FACTORY, Boss TU 2, Koch Twintone amp.
I am a amateur player of the guitar. I have owned Marshalls, Sunn, Crate and a line 6 pod. None of them give me the same satisfaction

50 watt 2 channel combo amp with reverb. Everything I'm lookin for.

Bear in mind this review comes after spending 20- 25 minutes demoing this in the store.

The overall voicing of the amp is a little bright, but otherwise well balanced tonally. It is not too piercing in the highs or too overbearing in the lows. It punches consistently throughout the frequency band.

The clean channel reminds me a lot of a Fender, surprising for an EL 34 based amp. There is a nice chime to this channel. It is a little stiff, if your used to any amount of compression, but I could get used to it in a hurry. It is very balanced tonally, there are no offensive frequencies.

The gain channel is voiced similar to the clean channel, only it can be vastly overdriven. I like the crunch sounds a lot. The notes lose focus when the gain is dimed, but does'nt become grainy or nasally. This channel reminds me somewhat of Mike Sterns overdrive sounds.

I like the reverb on this amp as much as any reverb I have ever heard.

na - Appears to be very well constructed

Unknown

This is a great versatile amp. It should appeal to guitarists who are looking for an amp that doesn'nt have any negative sonic qualities, maybe those with a really great guitar to amplify, and are looking for a straight ahead sound.

My criticism, is that the amp did not have a huge amount of character (at least not at relatively low volumes). There did not seem to be a lot of harmonic content or 'personality'. So there is nothing to get in the way of hearing the guitar, and could be positive or negative depending on your viewpoint.

I was very impressed with this amp, but not quite enough to purchase it.

Twintone '01. Very versatile and powerful combo. 2 channels , footswitch, headphone jack, half power option, effects loop, recording output etc. Just enough features for some serious rock.

Very good sounding amp. This combo comes with new Jensen speakers made and designed specially for Koch. I'm mainly play Les Paul with SD 59' , Stratocaster and Telecaster. Koch is noiceless and easy to use. I used to have modeling amp and I just got frustrated with all the knobs and effects which were never used. This one has all sounds in very compact package. Twintone goes easily with many types of music. I'm using it mainly for Rock and some blues. It has LOT of gain. You get those Metallica sounds out quite easily. Clean channel is very Fenderish. With Strat or Telecaster it's really clear and bright sounding. No 10 for rating cos you just have to search the tone for your hole life....

It's been with me few moths now and works very well.

Dont know, never dealt with the manufacturer. I've heard that they are very helpful.

I've been playing some years now and had some experience on different types of amps. This is not so vintage sounding amp like some some products in market. Koch is versatile, ageless, very good quality amp for many types of music. It's also cheaper than some American high end amps like Budda, Badcat etc. If this baby is stolen I'll probably get new one. Brilliant tool fool active musicans. Rock on !

Look at the review from Franz. I bought this amp from him.

Channel 1: Pure Fender-Tone, up 1/3 of the volume clean with a Strat, after that more and more crunch. With my Les Paul-style Hamer with stronger humbuckers, it starts directly with nice crunchy harmonics. And with that built-in powersoak-option the crunch starts even earlier. Just think of a cranked up old deluxe reverb.

Channel 2: Like Mark-Boogies, but not so nasal. Starting from creamy crunch, to crunchy cream up to 20 (but that's too much for me). It's more that, Blues, Rock'n'Roll and Country-Amp.

Reverb: Excellent for a spring reverb, very deep and fulltone with very light delay-beats.

It's nearly new. Nothing to complain about.

I send an e-mail and one day later I had the answer.

It's small, it's perfectly built with highclass components, easy to handle, loud enough for every club with all the additions you need from a modern two-channel-amp. It's the perfect compact amp for these types of music that came out of the blues roots. But in my opinion it's no metal-amp. I LOVE IT?