DOD FX25-B Envelope Filter

I have to admit, I was utterly confused for like the first 15 minutes of jamming with this sucker. However, after I adjusted the sensitivity up to 9.9,,,i was able to dial in a decent autowah sound.

There is definitely a volume drop if the sensitivity knob is not on 100%. Mixed with my small stone phaser, this pedal is great.

The previous poster gave me ideas when he mentioned his mod to the fx-25b. thanks !

I bought this pedal earlier tonight from some dude on craigslist. The previous owner seemed like he never even took this thing out of the box. Not one scratch on this thing.


I really can't give a good opinion on this one, because I have only had it a matter of hours.

no need

Considering that I only spent 30 bucks and got a half-way decent pedal, I would say it is a positive purchase. However, be warned you might have to really tweak this thing to get a sound that is acceptable. Once adjusted, this pedal is a solid buy.

Easy to get a good sound after you mod the board

Excellent after mod sounds warm organic analog. Was using the touch wah in my ensoniq dp4+ and was good but scratchy digital.

To mod replace R5 (20K) with 6K2 (this is the Wah input)
and R39 (10K) with 3k (this is the dry sound to blend pot)

Just an update......I'm still running this thing in my pedalboard with a passive j-bass.....
I continue to use it 'cause it was cheap and I get a great dub sound with it.....
I believe the only way to get a useable sound with this thing is to run a compressor AFTER it, in your signal chain.....

I run a tech 21 bass compactor AFTER it......compressor/2 band eq......and this pedal would be useless without the tech 21....

still going strong......17 years....live shows with beer spilt on it...

best budget bass dub envelope sound for me.......needs help from a good compressor after it but it will perform.....
there are way better envelope pedals out there but it was cheap and I figured it out after much trial and error.....
killer dub sound......sublime, bob marley.....

3 knobs......pretty easy to figure it out......didn't take too long to figure out it is a volume and tone sucker as soon as you step on it.....usable sounds that need help.....look to a compressor for helping the volume drop when kicked in....

for a budget pedal this envelope filter is usable if you don't want to spend 250+ for a boutique pedal.....it definately needs some help....I use it with a bass compressor pedal to bring up the overall volume and tame the envelope a bit....

mine is 15 years old and still going strong....

this pedal definately need some help from a compressor pedal.....I use mine with a tech 21 bass compactor pedal to bring up the overall volume and fatten it up a bit....good overall envelope sounds....if you find one for cheap and you can compress it a bit, it is worth checking out....other envelope pedals cost a lot more and still aren't perfect to my ears.....because this pedal is such a tone sucker, I use it with a radial efx looper tru bypass/switcher pedal so I can kick it out of my signal chain when not in use....definately needs help from a compressor because it is a radical change when kicked on.....I use it alot for a dub sound/sub low boost for reggae tunes.....and pick harder and the envelope opens up for funky stuff.....2 very usable sounds in 1 pedal if you can dial it in....
definately neeeds help from a compressor pedal......

3 Knobs and a switch. I'm not really sure what each knob does, but it really has two settings "mutronISH" or really really muffled guitar sound. Once you manage to get a sound you want, write it down and don't lose it.

I use a gibson les paul special with humbuckers with a couple of other effects and an epiphone galaxie 10 tube amp. my chain is Les Paul > Crybaby > FX25b (sometimes) > Boss DD-3 > Amp. Usually this pedal doesn't make the chain for a reason.
This guitar is too over the top to be on all the time, unfortunately, when it's engaged there's a really signifigant volume drop, which is annoying because usually you're rockin and then want to add in a funky solo and bam! you can't hear it. When I do use it I can't pick too soft or I get a really muted sound. If I pick too fast the notes get garbled at the end unless i mute the guitar briefly to let the pedal start over, so it really limits you in the phrases.

But it's not all bad, the guitar can get a pretty good "down with disease" by Phish, an okay "estimated prophet" by the dead, and can sorta get a "shakedown street," but it sounds very thin. If you're playing "chameleon" by Herbie Hancock, this pedal is AWESOME. It really nails a good synthish sound for that.

This pedal is really kind of a special occassion thing for me, when I'm really in the mood. I definitley wouldn't use it all the time.

It doesn't look like it's going to break anytime soon. It's a metal case, but the switch is cheap plastic. I thought the switch was going to be different from the look of it in the catalog. I thought it would be more like a boss style switch, but it's like a button in a sea of metal.
The battery plate is cheap plastic as well and looks like it could break off. The battery connector has an excess amount of wire, but now i'm just getting picky. It should last forever. I'm not rough on my gear.

Interestingly enough, it's not that great with an AC adaptor. I had one plugged in and when the unit was off it was fine with no noise, but when I turned it on, this thing went spinal tap on me and the next thing I knew I was listening to the radio through my amp. The pedal doesn't eat batteries, though, so it's not that big of a deal, but the radio thing costs it a few points.

If it dies i won't go far out of my way to ressurect it.

I play rock, mostly jam band kind of stuff, but occassional play some heavier music. I enjoy playing Grateful Dead and Led Zeppelin songs and anything with a good groove.

Really easy to use, three knobs and the stomp.

getting used to the blend may be weird for some people its mainly for switching between guitar and bass sounds.

I'm using a Samick P-bass into an ODB-3 overdrive - Digitech X-Series Multi chorus - russian small stone - russian big muff - and throw that thing in somewhere every now and then.

This thing is horrible.
The effect is weak and can be done without. Also it sucks tone, volume, gain, anything that was ever goood about playing music...kind of can be funky but ruins the mix of everything else.

It will always work and always sound crap.

Never have

I like to play like funky rock, RATM, Audioslave, TOOL, Muse and this should fit in, only on lightly it does but it sucks the sound out of everything else in the mix.
Sucks hard.

This pedal hasno usability - the more you tweak it the more disappointing it becomes.

It wouldn't matter where you put this in your chain, or with what gear - this thing sucks!
By 'sucks' I mean this pedal sucks tone, sucks gain, sucks period!

Being one of the newer DOD pedals the switch is less reliable than the older ones; other than that you can rely on this pedal to basically get you a decent trade-in on your next enveloppe filter.

Overall...? I owned this pedal for less than two weeks. After hearing a friends FX-25 i had rather assumed this pedal would be better and more expressive - I was wrong; and so were the minds at DOD when they built this.
It is worse than it's predecessor, probably worse than a kazoo and tissue paper at getting a good dynamic enveloppe!

For the record, I find that DOD as a manufacturer makes finer quality instruments than Boss, and it's a terrible shame that every once in a while they put out something so utterly crap.
Spend $300 and get a Q-Tron, or go to every pawn shop you can find to dig upi some other more unique gem.

manual is useless. but I love the part they suggest that this pedal (envelope filter) should go AFTER a compressor.
HAHAHA, MORONS!

it's easy to try to get a sound out of this box. but that sound is never going to be your "that" sound :)

I think people who use MEG pickups should have problems with this pedal because active pickups are different from passives. envelope filters are about picking strenght. it's not the right gear to play with auto wah or envelope filters. actives are cool but it's not suitable for triggered filters like this.
now to the point!
FX25B is disappointing. all that range and sensitivity and blend control works for a big nothing actually. the foundation is bad, the voicing is bad. it's never going to be funky.
the sweep is wrong first of all. when you let a note ring the envelope jumps up and when the sustain starts to fade it suddenly dromps like rock. wow! such a shame!
and it's really harsh, not trebly or stinging, just harsh, when you turn range up.
volume drops as well.
I found it more useful when being placed after a distortion! I know it's not supposed to be there according to "rules". but when I put it after some gain the pedal turned into something new. it sounded like a better defined cut filter with a synth-like quality. but the volume drop just killed everything in here.
I'll give it a 2 because I liked the synth like sound it produced. but even that one had a horrible point: VOLUME DROP!!!

well, looks a bit cheap. knobs are ok, battery cover is somewhere you can't stomp on (should not). but the switch is very lousy! it's a stupid piece of plastic. and it's not that smooth sometimes! and if you stomp on it really hard it'll easily break. SO, BE GENTLE (this rule apply to all pedals!).

gig without a backup? I'd never gig with it! it's ridiculous to gig with it unless you fix the volume drop problem.

well, i'll just share one little thing. the manual says that this pedal should go after a compressor. what the ****!
you can't hear anything if you place this after a compressor. compressors regulate gain level, envelope filters use variable gain levels to creat a sweep! DOD team = morons!

I got rid of it! no worth keeping it, because it's useless! it has a harsh sound before overdrive, has a nice sound after over drive with a killer volume drop that would make you look funny on the stage.
it's not true bypass and sucks a bit of your tone.
it's not a nice looking pedal unlike EHX or boss pedals. cheap construction, blah blah blah...
long story short: it's not worth the money, even it's $20!
buy a EH bass balls or Dr.Q. or buy a mini Q tron which is way better. or buy a Q-tron which is just amazing and you'll be delighted to use and never think that you wasted your money. DOD FX25B is a waste!

Pretty easy, in that you'll know it's completely useless five minutes in. I suppose the controls are easy to figure out, and the manual gives you some sample settings, which suck.

I use an American telecaster. Pedal wise i use :
Boss TU 2 tuner
Marshall Shredmaster
Boss OS2 Overdrive
Boss DD6 Delay
Boss PN 2 Trem/Pan
Electro-Harmonix Small Stone Phaser
and this piece of shit.
I'm delighted with all my pedals, but this is awful. I wanted a 440, couldn't find one around, so I picked this up. Dire - you have to put all the dials at full to get any type of effect, and there is a ridiculous volume drop. Ridiculous. I really like Jonny Greenwood, so I can tell you that this is not going to emulate his sound. You might get one good sound out of it, but space-porn funk isn't my thing. Especially when you can't even be heard.

No problems, but I haven't exactly been gigging it hard. Would I use it without a back up? I wouldn't use it at all.

No idea.

It's bad. Anyone looking for Paranoid Android, Lucky etc look elsewhere. I wish someone had told me that before I threw my money away on this thing. Try electro-harmonix stuff, boss stuff, anything, just don't try this. Better still hold out for a second-hand 440 and pay your money. At least you'll know you'll be happy.

Very easy to use! Just plug it in en play! The manual isn't all that but you don't need it anyway.

I play with a Gibson Les Paul and a Peavey Bandit Transtube 112. The DOD does the job very well! Very FUNKY!!! There's no noise to worry about. The blend-knob is a bit weak, I don't notice any difference if it's under 12 o'clock. But I love the sound that gets out of it!

It's sturdy! It can take a beating. Never had problems so hopefully it will stay this way.

I play everything, rock, reggae, funk, and I love to use the fx25B! If it got stolen I would buy a new one!! I really like that funky quacking sound. I've been playing for 12 years and and this pedal is really adding a new adventure!