--- In Doepfer_a100@yahoogroups.com , "sam" <sams2cats@h...> wrote:

> my other question is about the a130. i'm using it at the end of my
> chain of modules, sending the audio out to my studio mixer. i've
> noticed there seems to be a lot of "hum." even when the gain is

down.

> any ideas what it could be, or are they just particularily noisy
> modules

No hum with my A130 or A131 going into my Akai DPS. I'm *not sure* but
think to recall a thread on different input/output impedances causing
noise. The thread I'm referring to was probably at Analog Heaven:
http://www.retrosynth.com/ah/
It's a great source for information on analogue synths. Regards, Ingo