Akai S900 – Version 1.2C OS Update Upgrade Firmware Eprom for S-900 Midi Sampler


Firmware for Akai S900

SKU: FW-18 Category: Tags: , ,


Akai S-900 Firmware OS Update Version 1.2C

This is firmware update 1.2C and is the latest official released operation system by Akai. This operation system update/upgrade requires two eprom chips  and the chips will be labeled to help you locate the correct chip socket. For more info, please check below.

The most magnificent addon about firmware 1.2 is the option to use OS bootdisk 4.0 (which is not possible for firmware versions under 1.2)

Features/improvements, when able to boot 4.0:

  1. Pre-trigger recording
  2. Special one shot mode
  3. Crossfade looping
  4. Dynamic Filtering
  5. Automatic locating of start point
  6. Velocity release by note on
  7. Combine two samples for velocity crossfade type samples
  8. Changing the velocity mix curve for velocity crossfade
  9. Time skew for velocity
  10. Key group copy function
  11. Disk mode: Compression of sampled data


The eprom chips are in sockets, so you swap the current chip located at IC11 (M) and IC12 (L)