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About the QA40x category
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1
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733
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August 9, 2023
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Confusion about cabling
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1
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43
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November 9, 2026
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ToneBench - Audio Equipment Analyzer
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40
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321
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November 9, 2026
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FFT Peak L and R data
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1
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51
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November 9, 2026
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QA403 capability analyzing square waves?
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4
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93
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November 6, 2026
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First version of custom QA40x Audio Analyser
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37
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1706
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November 4, 2026
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Some Audio Adapter Cables
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5
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860
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October 29, 2026
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QA404 and QA403 Update
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67
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8585
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October 27, 2026
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ampMeasure 1.0.2 is out — important level fix, External mode, new readouts
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0
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68
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October 26, 2026
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"Bug" in the PowerThdVersusFrequency Automated test?
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4
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95
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October 26, 2026
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macOS ampMeasure public beta
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11
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314
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October 23, 2026
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Is there new software for the QA403?
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2
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143
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October 16, 2026
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ampMeasure 1.0.1 is now live on Apple App Store
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0
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87
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October 15, 2026
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Time domain amplitudes
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8
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177
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September 30, 2026
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Rasberry pi 4b compatible?
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4
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142
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September 28, 2026
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Pink Noise User Weighting
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13
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301
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September 15, 2026
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ampMeasure 1.0 is now on the Mac App Store 🎉
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0
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132
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September 15, 2026
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Driving DAC to be measured to full output
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3
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134
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September 15, 2026
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More precision in exported CSV files?
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1
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124
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August 18, 2026
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Phonalyzer for QA40x
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17
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621
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August 16, 2026
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Turntable cable test: cheap vs hifi
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3
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195
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August 14, 2026
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QA402/403 I2S expansion specifications
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8
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980
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July 25, 2026
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Revox B77 recording calibration
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6
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337
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July 18, 2026
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Continous measurements via REST API
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0
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116
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July 16, 2026
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QA403 Input and Output Impedance
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1
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184
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July 14, 2026
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Interesting Problem (?) with PWR THD vs FREQ Automated Test
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8
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205
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July 13, 2026
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QA401 noise floor
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6
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199
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July 7, 2026
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Testing amps upto 300W into 8ohms
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4
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290
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June 18, 2026
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QA403 I2S Input / Output
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33
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1899
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June 17, 2026
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USB: startech ST4200SUBM: USB 2.0 hub ok?
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7
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195
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June 6, 2026
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