![QA402 Audio Analyzer [Retired] Retired These are useful for verifying](https://cdn.shopify.com/s/files/1/1631/5609/products/QA402-2.36.png?v=1619453631)
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These are useful for verifying the noise floor (see the Quick Start guide) of the QA401 and also are needed if you want to make single-ended measurements
The QA461 current sensing relied on an INA199A1 with ±1
The QA462 includes a 12V/1
For customers outside the US
QA402 Audio Analyzer [Retired] Retired These are useful for verifyingThe QA402 is an improved replacement for the QA401 Audio Analyzer. The QA402 initially began shipping in early May 2021. Jan 2022: The QA402 has been replaced by the QA403. Update 17 Aug 2021: The QA402 is on backorder. Given the scarce part availability, we don't yet know when it will be back in stock. As soon as we do, we'll start taking orders again. Update 5 Aug 2021: We have caught up on all backorders. New orders generally ship in 24 hours.
