After trying several wah's in multi-effects units, I never really found something to relate with. I started to like wah's after the Standard Dunlop GCB-95, and really got into it with, recording with a Dunlop SW95 Slash Wah. On stage however, I use wirelesses with my rig stationed at the back, and the wah just doesn't cut it for me on the effects loop. On the other hand, it's impracticable to send the signal all the way up front to the SW95 wah pedal, and then back again to my rack, (20m or so). So after reading some reviews I bought this DCR-2SR unit, because most users said that it can emulate most of the dunlop wahs.
Pros:
Well it is amazingly versatile, from SW95 to the standard GCB and well beyond, the range of the controls really made this "my wah" pedal instead of a SW95 live emulator.
It has a nice clean boost that can be used fairly to compensate for some diference in volume when the effect is on or off.
It is controlled with a single TRS cable, and when the stages are big I ran 40m of cable between the foot controllers and the rack unitwith no problem .
It takes up to 6 foot controllers, and it simply works with the one you step on with no hassle.
I am using it in front of my amp, (first thing in my signal chain), and it has a wah thru out, (very handy to my tuner).
It is possible to control the unit with a switchless foot controller, (the standard controller that comes with the unit is a regular one, but dunlop sells a CSP-025 unit that does this).
Cons:
Well it's expensive... this has to be a "con" because it is simply the most expensive wah unit on the market.
The dimensions of the rack ear holes are not standard, I had to extend the holes 2mm at each end to make it fit into regular gator racks. It works fine of course, and the screws kind of cover the hole widening, but I don't find it acceptable, (this had me searching everything for standard dimensions, and turns out the DCR-2SR is just not standard).
Handling is pretty straight forward, but the manual doesn't cover the full details of the unit, and when I contacted dunlop asking how the remote on/off was wired they just don't answer.
All in all these "cons" are very very small compared with how great and reliable this unit is, and it just went from something I used in a couple of songs, to something that takes a serious part of my rig, and my sound.
I was a bit worried about the price and considering if I should spend this much money on a wah, but I am totally convinced that this is the best wah ever. Completely worth every penny. I'm using for several months now and my other wah pedals were all boxed and stored. I don't see myself searching for another wah for years to come.