Download CTR2-MIDI Firmware – v2.01.03
Download the latest CTR2-MIDI firmware for CTR2-MDI and CTR2-Micro here
Download the Latest Updates – October 29, 2026
Find the latest CTR2 firmware updates here
CTR2-Max Firmware – v2.00.01
CTR2-Max offers a larger display, more knobs and pushbuttons, and better sidetone when operating in Flex mode with AetherSDR’s CTR2 Relay. This firmware runs on the CTR2-Max-5 unit. Download the…
CTR2-Max Manuals – v2.00.01
Operation manuals for CTR2-Max and AetherCTR2 can be found here
CTR2-Dial Configuration Files – October 18, 2026
Find the map and configuration files you need for CTR2-MIDI and CTR2-Dial here
CTR2-Flex/CTR2-Dial Dual-Boot Firmware v2.05.06
The new CTR2-Flex v2 firmware allows you to boot either CTR2-Flex or CTR2-Dial firmware without re-flashing your CTR2 controller.
CTR2-Flex Firmware Manual – v2.05.06
CTR2-Flex firmware makes your CTR2-Quad, Duo, Uno, or older CTR2-Flex and CTR2-Dial hardware into a full-fledged, standalone Flex 6000/8000/Aurora controller. You can view the operation manual for CTR2-Flex here. To…
CTR2-Dial Firmware Manual – v2.05.06
CTR2-Dial firmware makes your CTR2-Quad, Duo, Uno, or older CTR2-Flex and CTR2-Dial hardware into a full-fledged, ham radio centered MIDI controller. This firmware is now included in CTR2-Flex v2 firmware.…
CTR2-MIDI Operation Manuals – v2.01.2
Read or download the latest operation manual for CTR2-MIDI here
CTR2-Max Config Files v1.02
v1.02: September 14, 2026 Current Configurations The following configuration are available. Each configuration includes a CTR2 settings file (.CTR2), an Excel spreadsheet file detailing the CTR2-Max and app mapping, and…