Mittwoch, 12. September 2012

AKAI S900/950 Mods

Some usefull modifications for tha AKAI S900/950 samplers.

1. Display



The original display is an ELD, which stands for electroluminescent display. Years ago these old displays losing luminance and need to be replaced.
The normal way is to replace the EL foil, but you will have the same problems maybe in a few years. Better build in a cheap 40x2 character LED LCD with great contrast and luminance.





2. Floppy


We all know the problems with floppy disks and data transfers. The other modification is to build in a floppy drive emulator. its an own unit with a software programm. The S950 thinks he got a build in floppy drive but you can store your samples on a 2GB sd card or usb stick. You need to create partitions in the size of the floppy disk 1,44 MB for HD and 740KB DD.
The most famous emulator is the hxc, you can google it. Its tested and working fine for the AKAI s950 with a price around 110 Euros. There is another emulator for usb devices, but it's only tested for the MPC60 in the 740KB Version. The price is around 40 Euros.

3. Memory


Memory for the S900/950 is really hard to find and if you found someone selling it he want hundred of dollars for a few "used" kilobyte.
The Mutec Memorys are in same quality than AKAI and workin fine. Years ago I bought Mutec memmory  for my S1100 and I never got any problems with em.
Price for the 750 KB Memory Expansion Card is 90 Euros.
http://www.masterbits.de/exp_d.htm

Last but not least I want tell you some reasons for using the old AKAI sampler. It sounds musically and has its own type of crispy and warm 12bit sound.
The S950 got a true analoge switched capacitor filter with 36dB transition steepness per octave. No ressonance or realtime modulation but an own envelope and dynamically controlled by the keyboard velocity.
For every 8 voice there is an own converter chip with serveral clock and VCA amplifier, which is the reason for great pressure like the old Roland synthesizers. If u want change the pitch of the sample, the clockrate and rate of the memory will be changed. It's like an turntable, when changing the speed of a vynil. Only a few samplers of the early 80's runing this enormous effort. It's just a great piece of engineering art and a great instrument which still has it's place in a modern studio.


Watch out for my next post, I will describe my modifications for the AKAI MPC 2000XL.

7 Kommentare:

  1. Thx a lot for the infos, great blog!

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  2. I just dug out my old 750k equipped s950 from the basement.. Its in good condition, but 750k is nothing these days + floppys are hard to find and cumbersome to use.. Memory expansion + modding seems to be the best thing to do now :-)
    Please please please elaborate on your mods!

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  3. Welcome :) tell me pls if your mods workin or send us some pictures. More Infos you can find at any diy board or here http://hxc2001.free.fr/floppy_drive_emulator/

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  4. I have gone through the site and read all blogs and this is a nice one:

    The S900 is just one of the several models that are very popular. Technological solutions should definitely remember that the Phantom 3 is very handy. Aerial Cinematography is considered really useful since from the top everything looks radically different. The DJI rumors will have to be ignored if there is any confusion regarding the utility as these will often be just hearsay and not true.

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    1. Great post. Thanks for sharing such useful modifications for AKAI S900/950 samplers. I was searching for this for quite a while. I have also found this online store - FPV Direct that has some amazing products for FPV lovers.

      Keep sharing the great stuff!!!

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