K5synth

Yeah, about your OPA4134 mod, I don't remember if you told the 
improvement was big or small.

Since the free samples I've got from TI are SMD, I will have to build an 
adapter. It's harder to solder, but I could put some filtering 
components on the adapter board. Yay!

Also, something interesting to build would be one of the uCapps.de 
(MIDIBox) projects and control some filters with it. I wonder what a 
Moog filter on a K5 sounds??

nelsonj_sce a \ufffdcrit :

>I recently got a Roland MKS70 and figured out how to mod it so I can 
>run (6) external signals through its filters/VCA/Chorus.  I am 
>running the four outputs of the K5 through the MKS70 with the MKS70 
>in "mono mode" (Guitar synth mode).  By filtering the K5 midi output 
>through my computer and MidiOX, I can send different parts of the K5 
>keyboard to different midi channels, and then on to the filter of my 
>choice in the MSK70.    
>
>The result: Different notes on the K5 trigger their own filters.  It 
>is a true 4-voice poly board.  If I trigger more than four voices, 
>several notes go through the same filter in a paraphonic (?) mode.
>
>In my opinion it sounds fantastic!!!  Just think about it, the K5 
>additive OSCs, stacked into multi layers, and then run through  the 
>very decent ANALOG filters/VCA (and Chorus)of the MSK70 (filters are 
>24db with Resonance and self-oscillation).  I can also add 2 
>additional DCOs (square/pulse/saw/noise) from the MKS70 - this helps 
>add some much needed low end to the K5, or whatever else I want (like 
>noise).  Think PPG 2.3 and a very rich sound.  The analog filters 
>just add so much life and beef to the K5 - I love it!
>
>I will try to record some MP3 (K5 solo, K5 with DCOs, K5 with 
>DCOs+Filters, K5 with DCOs+Filters+Chorus).  Note that I upgraderthe 
>op-amps in my K5 to Burr/Brown, did the 147k resistor mod,and this 
>helps out also, but the filters are what really does the trick.
>
>I am in love with the sound and have spent hours and hours playing 
>with the K5 through the MKS70.  My BCR2000 is programed to control 
>all the MKS70 settings so tweaking is very easy. 
>
>I hope to post some sounds in a week or so.  Stay tuned...  
>  
>