■Table-top version budget version of famous MPC series with a pretty simple numeric display.
The S20 can sample in STEREO at with a standard internal ram of  1 MB that can be upgraded to other 16 MB with standard 72 simm . It uses 16 bit samples up to 32 kHz but can resample to very gritty Mono 8kHz.
Sampling structure is based on a 24-BIT DIGITAL SIGNAL PROCESSOR DSP56002 from motorola

■ Memory mass is a  3.5 inch high density floppy disk HD up to 1,44 mb; today it can be replaced by easy gotek. No scsi (only on bigger version REMIX16 which is 100% compatible).

■FX  like many old school MPC there is  no onboard effects (not even external board), in fact the machine,  cannnot be expanded.

■ SEQUENCER The internal built-in sequencer is pretty simple with 4 tracks, but no advanced edit functions like quantize.

■OS Latest OS: 1.0 (labeled generally as REMIX88 which is a japanese version with black outfit, exactly the same). This os can import S900/S950 12 bits samples and also S1000 series, but one sample at the time, mapped patch cannot be directly imported.
It is also fully compatible with rack s01, the black version remix88 and the remix16.

■Company: Akai 
Country: JAPAN
Class: sampler
Pads: 16 
Display: numeric
Resolution: 16 bits
Model : 16-bit Stereo Phrase Sampler S20
Sampling Method : 16-bit Linear Encoding
Sampling Frequency : 32 kHz, 16 kHz, 8 kHz
ADC : 4th order 64 times over-sampling
 DAC : 4th order 64 times over-sampling, 8 times interpolation filter 
CPU h8/3002

■ Polyphony - 8 voices
Sampler - 16 bit, 32 kHz, 16 kHz, 8 kHz
Memory - 1MB memory (STEREO, MONO), expandable to 5MB or 17MB by 72-pin SIMM.
LFO - None
VCF - None
VCA - level and release are controllable
Effects - None
Arpeg/Seq - sequencer: 4 tracks, 30,000 notes
Keyboard - 16 pads
Control - MIDI (16-channels, 2x IN, 1x OUT, 1x THRU)
Date Produced - 1997

■EDIT FUNCTION TRIMSTART POINT, START FINE, SAMPLE LENGTH, LENGTH FINE LOOP LOOP/ONE SHOT, DISCARD, LOOP LENGTH, LOOP FINE PITCHTRANSPOSE, SAMPLE TUNE, CONSTANT PITCH, BEND LEVEL LEVEL, MIDI VELOCITY, RELEASE, MONO TRIGGER, RESAMPLE PROG .KEYRANGE HIGH, KEYRANGE LOW, PROG.NO., MIDI CHANNEL PRIORITY MIDI.MIDI TRANSPOSE, MASTER TUNE, PRORCHANGE CHANNEL, NOTE  BEAT LOOP FUNCTION.BEAT, SAMPLE TEMPO, NEW TEMPO, MASTER TEMPO

■Dimensions : 290 x 65.5 (80.4*) x 204 (205*) mm (W x H x D, unit: mm, *: max.)
 Weight : 2.0 kg 
trend price :300€ 

■ USER MANUAL DOWNLOAD
■ SERVICE MANUAL DOWNLOAD NOT AVAILABLE if you have it please do send it us, it will be shared for free