Akai Sg01K

GM Sound Module (1995)

"Half-rack rompler module General Midi compatible"

Overview

OVERVIEW Half rack Midi module, made out of metal, main panel features a basic segment 3-digit display, 7 buttons and a single volume knob.
There are 2 other models from the same line with different sounds: Vintage samples SG01V and piano SG01p

MIDI nice Midi Implementation, TIP: It is possible to change more sound parameters using Midi Sysex or NRPN.
CC 7 Level
CC 10 pan
CC 16 attack release effect (shape)
CC 17 filter (tone)
CC 18 resonance or FX speed

TERMINAL CONNECTORS
1- headphones out
2- stereo CINCH out
3 -stereo CINCH input (only monitor)
4- Serial RS232 connection to computer (needs special drivers)
5-Midi IN OUT THRU
6-Power switch
7-PSU input 10VDC with positive center

Sound and Wavetable

SOUND VOICE main core based on a 16 bits NEC D-70236 CPU manages 32 voices polyphony, reduced to 30 if reverb DSP is engaged;
DAC is a nec UPD63210GT and various LSI ASIC (L7A0986 + DSP L7A1045).
Sounds cannot be really edited from panel and there's no computer based editor.

WAVETABLE internal 8mb PCM ROM contains 128 PCM recorded at 16 bits resolution which contains various instruments like piano, banjo, strings, all needed for GS midi files.

PERFORMANCE sounds can be assigned to 16 stadard Gm parts but overall setting cannot be saved.

Edit and effects

ENVELOPE a simple 3-segments EG ADR

FILTER digital resonant low pass filter.

LFO a single delayed modulator is accessible triggering Midi CC#1 modulation wheel .

EFFECTS internal DSP generates 30 reverbs organized into 5 main families: hall, plate, cathedral, metal and ambience.

Memory

MEMORY 189 instrument sounds, 124 percussion sounds. NO RAM patch, you cannot save your patches.

BATTERY REPLACEMENT an internal 3V CR-2032 just saves basic settings and the last edited sound, anything else must be saved by Midi dump protocol. After you can do a SG01K FACTORY RESET : "Switch ON holding DATA UP + DATA DOWN"