Filter switch mod

TonyBordelo · Filter switch mod

Hi, im selling my Sp12 now, but before i decided to take some pictures of the Filter switching mod somebody did with it. Perhaps somebody wants to do it with its SP1200.

sequoia1232

Thanks for sharing! Not sure if it'd be too much hassle, but could you add one pic from the other direction (power supply side)? If its back together already, we'll figure it out.

I've been considering doing something like that. It might be cool to have pots on the filters that are trimmable. I turned off the trimmable filters in my SP so that the mix output would be a little more flexible, but it'd be cool to be able to adjust them.

Again, thanks for taking the time, its much appreciated!!

peterpiper0815

It should't be such a big problem to get adjustable filter.

http://www.ka-electronics.com/images/SSM/SSM2044.pdf

As you can see there is also a pin for Q control wich means that the resonance of the filter is adjustable too.

Here is a PDF of a DIY filtermodule based on the ssm2044. It could be helpful too.

http://www.modular.fonik.de/pdf/ssm2044_EM.pdf

peace

Oh and thanks to Tony. I really like inside photos of vintage gear.

rokuez

damn, thank you for this!! sickest thread yet IMO

RHYTHM MONSTER

Thanks for taking the time to do this. If it's still open a direct overhead pic while holding the wiring harness to the left would be cool Wink

thanks.

winz

i think i remember this sp12
you bought that from german ebay, right?
the mod seems to be cool!
no more half pluggin!

DFACE DXA

yeah real sick man!

TonyBordelo

Hi, nice you like the pictures! I will make some more soon, its very difficult to get all the soldering and connections on photo cos of the many wires but i will try to catch it...

sequoia1232

Awesome, you rock! Thank you!!