QA472 Low Noise Mic Preamp Audio Analyzer To measure output current

To measure output current

The QA490 is an acoustic tester for IEMs

Simply tap into the supplies of your project rails (5V

5Arms/10A peak for 0

making it a snap to customize measurements or integrate with other test equipment

QA472 Low Noise Mic Preamp Audio Analyzer To measure output current13 July 2026: The QA472 is awaiting case parts that will not arrive until later in July. Orders can still be placed, but won't ship until that time. The QA472 replaces the QA471 mic preamp. The QA472 is USB powered, and features two pre amps. PRE1: Balanced BNC or XLR Inputs Switchable +48V Phantom Power (XLR input only) 0 10 20 dB gain, with tight matching No glitch gain switching PRE2: Single ended JFET amp 1M input impedance 30 dB gain The product