Synth Firmware Shop

Re-engineered firmware for certain vintage synths, developed by Bob Grieb ( – sold with permission and including a license fee to the author for each and every chip. (So you are supporting a brilliant engineer and his love for vintage sound machinery.)

Firmware Upgrades for:


Crumar Bit One Tauntek Firmware Upgrade Kit CC-enabled

Item number: 0011
Item price: 50,00 EUR
(incl. 19,00% sales tax and plus Shipping cost)
Bit One Firmware
For CEM chip-based version only, please check before ordering whether you have CEM or SSM filter chips inside your BIT

See our terms of business und refund policy. The shop is an enterprise of Ingenieurbüro Günther Eggers, see the contact page.