# ampMeasure 1.0.2 is out — important level fix, External mode, new readouts

**URL:** <https://forum.quantasylum.com/t/ampmeasure-1-0-2-is-out-important-level-fix-external-mode-new-readouts/2425>\
**Category:** QA40x\
**Created:** [October 26, 2026, 7:32pm UTC](https://forum.quantasylum.com/t/ampmeasure-1-0-2-is-out-important-level-fix-external-mode-new-readouts/2425 "2026-10-26T19:32:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![davorin](https://avatars.discourse-cdn.com/v4/letter/d/958977/32.png) [@davorin](https://forum.quantasylum.com/u/davorin)\
**Post date:** [October 26, 2026, 7:32pm UTC](https://forum.quantasylum.com/t/ampmeasure-1-0-2-is-out-important-level-fix-external-mode-new-readouts/2425/1 "2026-10-26T19:32:09Z")

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ampMeasure 1.0.2 is now live on the Mac App Store, as a free update for existing users.

**What’s new**

- **External source mode:** measure DACs and players running on their own clock. The tone is found automatically, with power averaging and a new Blackman-Harris 7 window.
- **New readouts:** SINAD, ENOB (optionally referenced to full scale), and absolute noise in µVrms / dBV. The former “SNR” is now labelled as what it is: noise relative to the fundamental.
- **THD:** harmonic range up to H22 (REW’s default), harmonics at the noise floor marked, and harmonic labels in the spectrum.
- **Averaging:** up to 256 averages with “Stop when averaged”, and an auto-fitting Y axis.
- **Report PNG:** settings, spectrum and every channel’s readouts on one page, with its own light/dark setting.
- I **nput protection:** a hint with a one-click fix when the protection relay keeps cycling.
- **Correct noise at 96/192 kHz:** a DC offset no longer leaks into the measurement band.
- automatic reconnect after unplugging;
- a working LINK LED;
- silent connect, with the relays parked safely on quit;
- range changes go to the QA403 immediately;
- a timestamped range log in the Probe tab for matching relay clicks.

**Thank you** to the beta testers.

**Coming in 1.1**

- SNR referenced to full scale (unweighted and A-weighted), the way ASR and AP publish it.
- Dynamic range per AES17 at −60 dBFS.
- dBFS readouts and a noise floor in nV/√Hz.
- A power readout for amplifier testing.

After that: selectable FFT length up to 256k.

Feedback and bug reports always welcome!

Link to App Store: [‎ampMeasure App - App Store](https://apps.apple.com/app/id6808983052)