This is a pure delay pedal. You can also get chorus and slap back echo out of this unit, among other sounds. I believe it is digital and cannot be edited via computer. It is a floor pedal, so it is not rackable. It has two stereo inputs as well as two stereo outputs, great for bi-amping !

There are four knobs: E. level, feedback, delay time and mode. I do not have a manual, because it's used. So if you don't know much about delay, like me, you can play with the pedal for a time and figure out some really cool delay effects on this thing. Switch the mode around, and you get several different effects within one pedal. E. Level is like your volume. Feedback is the amount of delay you get, and delay time is the duration of the delay. Pretty straightforward.

This is one of the best pedal delays in the business. Don't mess around with other delay stomp-boxes, this is the one to get. I put this pedal at the end of my pedal chain. I use the stereo output to bi-amp and the "ping-pong" effect that occurs at certain delay settings is really cool. Reminiscent of Pat Metheny on clean settings, Van Halen on distortion settings. I use 80 millisecond mode to add a little light delay to my solos. Gives it some nice "sustain", but not so much delay that notes start bleeding into each other. AT 300ms, you have a chorus type effect. Pair it with another chorus, and it sounds very lush and full! AT 800 ms, you've got a slap-back delay or echo, perfect for country or bluegrass music. At 2600 ms, you've got some wicked tape delay ! There's even a setting that makes your electric sound like a violin !

The Line 6 DL4 is delay pedal with 16 different settings, all based on other delay pedals. It also has a 14 second loop sampler. There are 1/4'' mono and stereo inputs and outputs and has 3 spaces for making your own presets and also has a tempo tap feature.

The pedal is very easy to use, although it takes some time to master it and to reach its full potential. Each knob has a different use for each setting and I would recommend looking at the manual for the full information on that, just because there is so much information and so much you can do with the pedal. Overall, its really easy to get some great sounds out of this though.

The effects on this are impeccable. While some are better than others, all of the sounds are very realistic and they don't sound too 'digital' at all. I use this mostly on electric guitar but I have used it on keyboards as well, and it works great with both. My favorite settings are the sweep delay and the reverse delay. I used the looper constantly, most of the time I just lay a chord progression down and make up lead parts over it - its a really great writing tool as well.

Analog voiced digital delay... more knob twisting, easy... yay!! Rackmount quality in a very, very small foot pedal package. 1/4" connections... no Midi here!

Very easy to use... as an effect. The typical user will absolutely, no questions asked, want to get an adapter with this pedal. This has a very high power draw. Eats batteries like tic tacs...AND aside from that, the battery compartment to this undersized, and lightweight pedal is a horrible design. It is sophomoric at best. The access to the battery compartment is covered by a tin plate, held together by a big black rubber band. Clumsy, difficult to attach, and worst of all... the battery feels like it needs to be forced into the space. NOT what you want to do to sensitive chips and circuit board... And not what you expect in a pedal that sells for 115.00 dollars.. but, I suppose the perspective on this would be that the price is for the quality of the effect. Get the adapter... And no worries! Other than that.. it is a straight ahead, 3 knob effect pedal that can be used without a manual... not sure mine came with one!

Rack mount quality in a foot pedal. Nice bypass... not True Bypass, exactly.. but buffered. I notice no tone loss with this pedal.
Using a Voodoo Lab Preamp, Carvin T100 poweramp,Cannabis Rex speakers in closed back cabs. Les Pauls,Strats,Tele's, etc. I don't use this much in my current rig, as I have a Digitech GSP2101 that I use for effects..but I have used it extensively with combo rigs, and it foots the bill.
I love the quality... better than my rack mount unit..( a little)...I don't use it because I need the other effects..and because I don't want 50 pedals on the floor in front of me....for very little difference in tone. ( I already have 2 footcontrollers and 3 other pedals in front of my rig... and all my effects essentially come from 1 unit. And hate lugging around more junk than I need!)
A solid "9" for sound quality. The bypass and organic tone beat all the other offerings in the price range ( Boss,Digitech)