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The version 1.0 of the manual for the Sp-12 is by Craig Anderton. Little-known SP-12 facts: the outputs do different things and you are supposed to know that when you assign what channel the sound goes to: Channels 1 &2 have dynamic filters whose bandwidth varies with level. 3 & 4 are "muted by a constant amount", 5 &6, less muted, 7 & 8 are unfiltered. Craig suggests you walk a sound through the different channels to hear the differences.
I like the multi-pitch: select a sample and it gives you an 3/4 of an octave of buttons for it. Like old synths, this is a fast tactile machine.
Also: wrong, it does have a disk drive. This is interesting as the 1200 drive becomes rare. The drive for the 12 is flea market available. The odd jack on the back is for direct connections to the Commodore 1541 5 1/4" (DSDD) external floppy drive, or a data cassette.
Also, there was someone who made a sample dump/editor for it, still tracking that one down, but there was an add in an old keyboard mag. It has tap tempo (40-240 BPM) and is accurate to 1/10th of BPM using the keypad. It can also output triggers at the Metronome/Trig jack for arpegiators, analog sequences, etc. It also does Midi and SMPTE. (Thanks Mick!)
Mine is 1985 on the chips but has an 1987 turbo. However I lost the factory samples. Internally mine has the following oddities on the circuit boards: silkscreened appears the words Drumulator II and in mirror reverse lettering "Paul is the Walrus" on the other board in mirror reverse lettering it says "paul is dead". Oh those crazy kids. You see that sort of thing on sequential circuits P-5 boards, buchlas, and my fave, the Oberheim logo on the Maestro Ring Modulator circuit board, pre-obie synth production!
Hip hop Vip Vop boom
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