Mach 1 overdrive clipping-section mod with the 12-position rotary clipping selector integrated onto the main PCB, D4/D5 omitted, PCB-mounted Volume/Drive/Tone controls, and a 125B-oriented control layout without Zero IOD branding.
BarbellAI Clip V1 BLE IMU clip using Raytac MDBT50Q-1MV2 (nRF52840) MCU/radio with external 32.768 kHz LFXO, ICM-42688-P IMU, USB-C protected power entry, and 3.3 V AP2112K-class regulator rail.