EmulatorII-list

If each successive note pressed playing back a sample gives different
filter response, I'd check the RC networks supplied to each channel's
filter IC's cutoff pins.  I had the same issue on my E2.  Each of the
8-voices on an E2 has its own filter IC at the output stage, and each
IC has an RC network to set the filter response.  If any one of the
resistors or capacitors setting that cutoff have degraded or have
open-circuit traces on the PCB directly at that filter IC due to
corrosion (leaking caps), that will alter the filter response on that
channel.  It can sound duller or brighter than others.

the way to tell which channel has filter issue is:
1-load a sample
2-connect E2 mix ouput to your mixer
3-press E2 key and then release it of your favorite note while
counting key presses starting from 1 to 8 (E2 has 8 note poly)
4-whichever note count sounds different than others, write it down,
that's your bad channel.
5-open E2 and check that channel filter IC bias R's & C's.  You will
have to remove the E2 power supply board to see some of them, as they
are underneath it.  Be careful here !

you will need the E2 service manual schematics to refer to what I'm
talking about and see the locations to check.

pardon any minor errors, as I did this about 3 years ago, and have
forgotten some of the details.
best of luck,

David

--- In emulatorII-list@yahoogroups.com, "elmbeatz" <elmbeatz@...> wrote:
>
> Hi!
> 
> I know, but I indeed have problems with the output channels and the
> filter. I do not have ram problems (well not yet ;) but i can clearly
> hear how different channels play back the same sample in different
> ways. also my filter seems to flip once in a while. There's a sound
> example in the files section that I posted some days ago, where you
> can hear what I mean.
> 
> If you only got problems when actually sampling, I suggest a good
> workaround: Use EMXP to create a *.EII sound bank, and bring that to
> the  EII via sound designer on mac. The result is brilliant, and you
> don't have any noises caused by "analog" sampling.
> 
> Greetz,
> Elm.
>