Check the listing for details. HEAD Acoustics MFE VI Two-Channel Front End. Condition: Used. Listed at 750.00 USD. The portable, cost-effective front end MFE VI forms the connecting link between data acquisition via the artificial head HMS II.3/II.4 and digital speech quality analysis with ACQUA. Connected to a notebook or PC via the Plug&Play USB port, it is configured and controlled by ACQUA. Via MFE VI, ACQUA performs automated measurements according to international, HEAD acoustics or user-defined standards. MFE VI thus serves for problem solving, quality control, benchmarking and product optimization in many areas where the voice quality of communication devices and networks plays an important role. In addition, MFE VI can be extended to a digital binaural equalizer (by software option). Unit does not come with a power cable. Sold As-Is as this unit is impossible for us to test.