Akai S1000 / S1100

Akai S1000

I have S1100 unit. This is my favorite sampler because it has very good, bright, clear sound and very nice 18db filter. It has good fx board based on motorola dsp 56000 chip. I like S1100 even more than S3000XL. Unfortunately midi implementation is very limited, there is no resonance and it has only 16 voices of polyphony.
If you want to get S1000, buy S1100 instead. Digital output, fx unit, scsi ports are onboard. Additionally S1100 is faster and it has louder outputs due to 20bit converters (while samples are still 16bit)

some infos: vintagesynth.com sonicstate.com Mike Collins S1100 review

more related links: dancetech.com akai scsi faq S1000/S1100 memory jumper settings

s1000 manual: akai s1000 v2 pdf
s1100 manual: a1.pdf a2.pdf a3.pdf a4.pdf a5.pdf a6.pdf
s1100 service manual: s1100service.zip
sysex implementation: S1000SysEx.pdf
addidtional manuals: S1000HD.pdf IB-104.pdf

latest os for s1000: s1000v440.zip and for s11000: s11k_430.zip
You can write it to floppy disk only if you have internal floppy drive. It works only with old DOS system, it won’t work on windows. But i have few instruction how to save it on floppy. First of all download win 98 boot disk from http://www.bootdisk.com/bootdisk.htm. Save it to blank floppy by executing downloaded file. Next unzip akai os exe file, move to boot disk. Restart computer and boot from disk, and run by typing os exe file name.

visit akai tools for useful software

Update 17 Dec 2013:
I just found similar tutorial how to put cf inside akai s1100 at Mike Bass Page: http://mikebaas.org

Update 20 April 2014:
This sampler still amazes me :) I was preparing library of old-skool 8bit samples from fairlight cmi, amiga, atari etc and i just can’t believe how these old 10-20khz samples are beautiful played on this sampler! When comparing sound from computer programs to this beast, difference is huge!
I wondered what secret is behind this sampler, and i ask uncle google what special this piece of old hardware has.
After many hours of browsing and reading i got the answer. It’s ‘eight-point windowed sinc interpolation’ Only s1000 and s1100 samplers use this method. Next Akai units, like s3000 use simple linear interpolation and samples, especially with lower frequency than native (44,1khz) sounds dull, and you get stronger antialiasing. This eight-point windowed sinc interpolation needs cpu power, that’s why s1000 have only 16 channels of audio and needs more huge expanders like this:

This was very expensive, so because of economy reasons this was the last sampler with such beautiful sound.

And the last thing…

I discovered something interesting. When you play distorted sample (saturated, squashed or clipped ) this interpolation tires to reproduce lost signal! It produces even more hi-tones from lo-fi saturated sample. This is just incredible.
How i noticed this? I loaded some old lofi snares, hihats samples with maxed level, and i noticed unnatural high clipping.

I wondered why it badly clips hi-tone samples with low frequency when they are maxed…

Now i know why, because of its unique interpolation!
It tires to reproduce lost tones! Signal is just interpolated beyond 16bit scale and it clips.
In this situation samples need some headroom. This is independent of gain, volume settings. Sampler just need such samples to be 0.5-1 db quieter from the max level because it generates, adds hi tones that normally this sample does not have.
20khz sample is interpolated and sounds like 30kz sample!!! I don’t know how it works, but it sounds amazing!

If you want to use low-frequency samples in modern daws, or software samplers you needs exciters, EQ and other processing for good sound.
But your Akai S1000 plays it better without additional tweaking!

S1000/S1100 are worth every penny! I’m sure its the best sampler in the world for playing samples! I’m going to buy some more units because servicing costs much more than working unit :-)


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