Add to Cart Compare Quick view Audix Audix TM1CA4231 1/2" Machined Calibration Adapter for TM1 Mic Now: $40.00 Was: The Audix TM1CA4231 is a 1/2" machined aalibration adapter, which is designed for use with the Audix TM1. The TM1 is a 6 mm pre-polarized condenser microphone used for test and measurement applications. Now: $40.00 Was: Add to Cart Compare Quick view