12 bit grit... anything relating to good old 12 bit audio equipment. Stuff with 12 bit DACs usually, such as the original Yamaha DX7, Roland D-5 and the Ensoniq SQ-80 but also 12 bit samplers like the Roland S-330 or the DSS-1.
A whopping 313 page black and white scanned PDF file. The DSS-1 is a complex machine, but well worth the study time to fully understand the beast.
Korg DSS-1 Owner's Manual
A 16 page black and white scanned PDF file. The DSS1 SCSI manuals details the actual use of the SCSI add-on and hard drive system.
Korg DSS-1 SCSI Add-On User Manual
Free VST Synth For Emulating the Ensoniq SQ-80
SQ8L is a soft synth version of Ensoniq's SQ-80 synthesizer. SQ8L's creator, Siegfried Kullmann, states in the readme.txt file that the "L" stand for "Light" and that there will be a commercial "SQ8X" (X for "extended") version. The last we have heard about that however was in 2008, so my advice for not is the enjoy the free synth light SQ8L version as it sounds and works great. I have personally used this under Slackware with dssi and have had no problems.