This is an odd little digital unit, it is a combination of two distortion channels, which can be used in tandem or by themselves. It also has a pitch shifter that gave you a range of sounds from deep chorus to single and double octave effects. It could not be edited via computer and being a floor pedal, it is not rackable. There is a single input and dual outputs for stereo applications.

The setup is fairly simple as soon as you figured out how to engage the unit in order to blend the two distortion channels as well as using them independently. Therefore the effects editing was fairly easy. The manual that came with this unit was clear, sufficient and helpful.

The effects on this unit are decent, if not great. I've played a Fender Stratocaster, a Squire Strat and my current Ibanez through this box, and they all sounded fine. The two distortions, while similar in sound, are both usable and sufficiently realistic. YOu can also engage them both and you got a nice thick sounding 70's type overdrive. If you adjusted the pitch shifter for a chorus effect,it sounded nice and smooth with the overdrive/s, perfect and non-invasive in a praise and worship setting. The pitch shifter, along with having some odd sound settings such as a 3rd or 5th above the original note, had some really cool single and double octave effects. These are the facets that I really miss about his unit. (I dropped the unit, and it's pretty much broken and retired.) I also liked the stereo output capability of this unit, which is great for bi-amping. If I had to say anything I don't like about this unit, it's that the input led would start to clip if I turned it up to high, but if I backed it down, sometimes the output volume would not be sufficient on stage.

This is a straightforward preamp overdrive. It can be used by itself as an overdrive pedal. (I don't like the sound that much when used in this way.) It can also be used as a gain/preamp booster, i.e. in front of a dirty amp or in front of a distortion/overdrive pedal. I believe it is digital. To my knowledge, it cannot be edited via computer. There is an input and output, as well as an input for 9v/dc power supply. This is a floor pedal, so it is not rackable.

Configuration is very simple, with just two knobs: level and gain. Getting the intended effects is really easy. Turn the gain all the way up, then adjust the level to your liking, and you're done with presets. I think I have the manual, but I don't think it was very useful. Luckily, you don't really need it.

As I said earlier, as an overdrive by itself, I am not so impressed by this pedal. However, when I put it after my noise suppressor and before any distortion pedals, it makes a wonderful, screaming preamp booster. I stomp on this baby primarily for solos, either with a distortion/overdrive pedal already engaged, or when the amp I'm using has it's drive/distortion pedal kicked in. It gives you days and days of endless sustain. I can also do fast,long solos without wasting all of my hard earned energy trying to press the strings so hard to get great tone and sustain. The only things I don't like about this pedal, I fixed by buying additional specialized pedals. It is very noisy, especially with the gain turned up. A noise suppressor fixes that. I also wish that it would boost volume when engaged, precisely because I use it for solos, but this unit does not give much of a volume boost when engaged. So I bought an equalizer that I can engage along side of it when it's time to solo.

The DOD Grunge pedal is a bit misnamed, it can maybe create a "grunge" sound for you if you play with it, but it is mostly a pedal for metal lovers.
Its a fairly typical distortion box, 1/4" input and output, red led, ac adapter input, in a sturdy metal casing with a cheap plastic stomp button and battery cover like all DOD boxes, when will they ever learn not to use plastic? It has 4 knobs; "loud", "low", "high", and "grunge" (which means 'gain' in DOD-land for this pedal anyway). Its pretty simple to use.

I was a bit suprised at how much control the "low" and "high" knobs give you. You can't just max this thing out and rock out like some guitarists are tempted to do, but you will equally lose out by just leaving the EQ at 12 o'clock. You can add a ton of thick low end to your palm muting riffing with the "low" knob without it getting muddy as quickly as I would expect, and the 2 eq knobs seem a bit interactive. It adds a lot of versatility to this pedal.

This pedal will probably elicit a 'love it or hate it' reaction from most guitarists. I do like the meaty crunch of it and the amount of gain possible, but it does start to sound a bit "synthetic" to my ears and never really sounds "warm". Its a very raw, grating distortion. It might be cool to play Pantera riffs, and detune to play newer metal, but..... I would never play prettier music like indie rock or even screamo with it. Its just to nasally and over the top. I go to this pedal when I want super aggressive distortion for metal type playing. I have the sense to reach for my Tube Screamer when I want creamy overdrive/distortion for lead/soling, and my Snarling Dogs Black Dog when I want a more classic sound.

I hate the sound of it with the gain turned down, its not very versatile in that regard either.