Red C64 Synth MSSIAH SID2SID Commodore Custom 8-bit Synth

via this auction

"Here are some of the features of this custom C64:
-Custom paint job in fire engine red.
-MSSIAH Vinyl Keyboard labels: full digital color prints that show the functions of MSSIAH
-MSSIAH: The MSSIAH is a midi cartride for the Commodore 64. It has a suite of applications that you can use to play the c64 via midi. I controlled mine with Ableton Live 8. Worked like a charm. http://www.8bitventures.com/mssiah/
-SID2SID: An additional circuit board to add a 2nd SID chip. I have two 8580 sid chips installed. They each have a separate 1/4" output. It gives you 6 voices of polyphony/6 tracks in MSSIAH Sequencer and Drummer apps, as well as mirroring the output from your first SID chip to your second SID chip in MONO and Bassline modes, to give you stereo output. http://www.8bitventures.com/sid2sid/
-Video Output Mod: RCA Composite Video Out. Just plug an RCA cord into the screen of your choice, from this output, and you can see the MSSIAH program in action.
-Feedback Mod: 500k pot. Sid input is grounded when it is turned to the left. Turn it to the right to apply feedback. Will make the sounds much filler and grittier.
-2 500K Pots: One controls the feedback, the other can control parameters in the MSSIAH software.
-Filter Input Mod: 1/4" Audio Input to Sid #1 for filtering external sources or samples.
-C64 1351 Mouse: Use it to control MSSIAH.
-Joystick
-Power Supply"

Video links at the auction. Some posted here.