The iMSx-P series synthesizers comprise of two programmable FPGA circuits; Controller and Synthesizer. The firmware can be upgraded by the user on later models.

 

Controller (iMSPa) Upgrade. Fitted pre sn243750

Controller Firmware History 2025-01-22 (pdf)

iMS4-P Controller firmware v2_4_98-upgrade (Zip)

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Controller (iMSPb) Upgrade. Fitted post sn243750

Controller Pro Firmware History 2025-01-22 (pdf)

iMS4-P Controller firmware v2_5_111-upgrade (Zip)

iMS4-P Controller firmware v2_5_107-upgrade (Zip)

Synthesizer Upgrade. Applies to iMS4-P- revD / revE only

iMS4 Synthesizer Firmware History 2026-5-20 (pdf)

iMS4-P Synth firmware v4_1_161 upgrade (Zip)

iMS4-P Synth firmware v4_1_154 upgrade (Zip)

iMS4-P Synth firmware v4_1_149 upgrade (Zip)

MS4-P Synth firmware v4_1_131 upgrade (Zip)