I bought a Memory boy at the beginning of this year for my bass.

Problem: After approximately 5 uses the Chorus function stopped working. The Delay function kept working but if i was in the chorus mode with the Depth knob turned up to any position I’d get no chorus, the dry signal comes through but no chorus. If the blend was all the way clockwise (wet) there would just be no sound at all.

I sent it back to the dealer and they replaced it for me saying it is not a common problem with EHX pedals but now my new one has just done the same thing.

I’m running it off a 9v battery only and have tried it in my pedal board and isolated. I have run it with multiple basses (passive/active) and wonder if an active preamp may be too high input signal for the pedal to handle(?).

Any help/info would be appreciated

or maybe the batteries are carbon ones and they get drained very quickly, idk.

Or maybe that bass thing that jesse said. try using a PS and a guitar first.

I’m having the exact same problem ...I think it is a battery issue my power supply went bad and i used battery only to have the same problem you described..I think the problem is a Memory boy needs more power than a battery can give and must be used with a power supply..Do not use a one spot either as this will affect the pedal in nothing but a negative way…Unless you use a battery plug in which means leaving the back off..

JezRay - 09 March 2010 09:26 PM

I bought a Memory boy at the beginning of this year for my bass.

Problem: After approximately 5 uses the Chorus function stopped working. The Delay function kept working but if i was in the chorus mode with the Depth knob turned up to any position I’d get no chorus, the dry signal comes through but no chorus. If the blend was all the way clockwise (wet) there would just be no sound at all.

I sent it back to the dealer and they replaced it for me saying it is not a common problem with EHX pedals but now my new one has just done the same thing.

I’m running it off a 9v battery only and have tried it in my pedal board and isolated. I have run it with multiple basses (passive/active) and wonder if an active preamp may be too high input signal for the pedal to handle(?).

Any help/info would be appreciated

It’s got to be the battery. The battery does not last long in the Memory Boy. At best 3 or 4 hours and that might have been tested without the modulation.