Colsan Microelectronics are delighted to announce that the 1723 AcuPass: IEM assembly based on a 17A012/9 and 2331 receiver is soon to be available.

The new part features 2 Way module with tuned vent woofer for improved bass, Internal Acupass (TM) acoustic cross‐over and PCB with large pads for easy attachment of headphone cable.

The parts and samples will be available from the end of April, please contact us directly at for pricing and product information.