All user reviews of 4/5 for the Dunlop JD-4S Rotovibe

Pedal Chorus / Vibrato / Leslie simulation size expression pedal (same box as the Dunlop crybaby).
An entry in a release out, a 9v power jack.
A switch to change mode (Chorus or Vibrato).
A knob that manages the amount of effect.

Not true bypass, like most mxr / dunlop.

Housing screws are crap, I broke 3 trying to screw the base.

UTILIZATION

The general configuration is simple. Once the mode is selected and the effect on (activation similar to conventional wah), the speed is controlled by the expression pedal. A small adjustment period is necessary compared to the effects of modulation "fixed" type phaser or chorus to control this Rotovibe properly.

SOUND QUALITY

Level of the knob is always thoroughly, and I use 90% of the way "chorus".

If you are looking for a realistic simulation of Leslie, go your way. If this pedal was thought well, it's a failure, but its very special character ended up having his own followers (Zakk Wylde, Jerry Cantrell ...).
It is neither a chorus or a phaser or a vibe, but a bit of everything at once, so it is not always easy to master, but I ended up prefer this to other reports by more conventional effects (phaser, flanger, chorus).

Let me explain: it is clear from this pedal a very dynamic, controllable in real time, you are not locked into a cycle of modulation, and the effect seems to react differently attacks right hand is really very pleasant. I always use a little crunch as its base, so it was very important that the modulation effect does food not once its activated as a chorus sometimes do, for example.

Sound, without being exceptional, is quite good, both in subtle adjustments has pushed back behind a Fuzz.

OVERALL OPINION

I use it for 3 months now. I'm not a fan of modulation effects because I tend to find that it affects the quality of a crunch or distortion. This pedal did not so much that impression. The sound is nice, but I can not wait to try the Fulltone vibe already for example. It appears overall impression product fairly standard, and better products must exist for a closer result.

That said, the pedal is engaging, and control the speed up is really a big advantage.
Value for money (120 euros used, the pedal is no longer manufactured) seems honest.

I think I would do this choice.

The JD4s is a vibrato pedal, even though the name doesn't really indicate that at all. Technically it is chorus and vibrato, which gives it a bit of a different feel. There are the standard 1/4" input and output as well as the input for the power supply. This is an analog pedal. There are no MIDI capabilities, and the device cannot be hooked up to a computer. It is also not rackable.


UTILIZATION

The editing on this pedal could not be simpler. There are two knobs: one for rate and one for depth. There is also a switch that changes the effect from chorus to vibrato. The manual is pretty much unnecessary unless you need further definition for what these effects are, in which case you probably should not have bought the pedal.


SOUND QUALITY

Like the pedal's namesake, I prefer to use this with a Strat, but rather than a Marshall I use my trusty Twin. This is a pretty cool vibrato pedal. It can actually get a surprising range of sounds for having only the two knobs. There is the basic "wiggly" vibrato that gave the pedal its name, and that sound actually dominates most of the settings. There's actually one configuration that will give you a decent Leslie speaker emulation too, which I think is an unexpected but surely welcome bonus. The chorus effect I find less appealing, but that's because I generally like that effect less in general. As a chorus, though, it holds up pretty well. It avoids modulating too hard, and doesn't drastically alter your tone the way that a lesser digital pedal will.


OVERALL OPINION

I like the fact that this pedal is really cheap, and actually has a great sound. Like most Moen pedals, there are certainly better ones out there, but it's surprising that this one is actually so much cheaper and can still hang with those. I'd recommend this to anyone who really feels the need for a good vibrato but doesn't want to pay too much money (or frankly doesn't have it!).