QA401 Audio Analyzer [Retired]

16-Nov-2020: In late October a massive 82-hour fire destroyed AKM Semiconductor's ability to deliver parts, including the AK4490 DAC and AK5397 ADC used in the QA401. A replacement product (called the QA402) has been announced. 18-Jan-2021: A short run of the QA401 has been built, and we may do one more. But for now, QA401 can be purchased. Note that the new build requires SW release 1.920 or later. If you need a replacement unit for a legacy install, please contact the sales email address. 29-Feb-2021: The QA401 has been retired due to the part availability issues mentioned above. The QA402 will be the replacement product. Availability is expected in March. The QA401 is our second generation of audio analyzer--the follow-on product to the QA400.  The QA401 can perform a wide range of basic audio measurements, making it a cost-effective addition to your bench. Unlike a sound card, the QA401 offers isolated and differential IO with input handling up to +26 dBV. And unlike a sound card,