John,

I recently purchased an A126 (Frequency Shifter), and like it quite a
bit. My only complaint is that the shift frequency only goes down to
50Hz (unlike the EMS Frequency Shifter which, if I remember
correctly, goes down to either 10Hz or 25Hz... but it's been a long
time since I owned one).

Anyway, I tend to process percussion through the A125 with very
positive results.

If you don't mind the price, the A126 will give you countless hours
of weirdness. That said, be prepared to spend a little time working
with the module, as it certainly isn't an "instant gratification"
device.

Regards,
Kevin Lamb