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About the QA40x category
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1
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678
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August 9, 2023
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Input bandwidth and display settings
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3
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68
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March 11, 2026
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QA403 Availability
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1
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53
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March 5, 2026
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BUG on QA403x Release 1.222
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5
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185
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March 4, 2026
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Question regarding measuring filterless class D amp
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28
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203
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February 18, 2026
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QA40x software question: plotting individual harmonics
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3
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97
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February 6, 2026
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Weighting for wow and flutter
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2
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185
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February 4, 2026
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Mirror the input to pc
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3
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184
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February 2, 2026
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What is wrong with the THD calculation with ext. Generator
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15
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119
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January 30, 2026
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Has the QA403 output out-of-band residual signals?
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44
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1034
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January 29, 2026
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BUG: sample rate and input scale
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5
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199
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January 29, 2026
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Measure power amplifier at the output?
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21
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742
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January 28, 2026
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Saved Automated Test setups not loading
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6
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153
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January 27, 2026
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Strange FFT / FFT not stable
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5
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274
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January 27, 2026
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QA403 Antialiasing?
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2
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62
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January 27, 2026
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Improvements to the software?
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88
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1635
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January 26, 2026
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An XLR cable adapter
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17
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882
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January 23, 2026
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Some bug in the spectrum display which fixes itself over time
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7
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103
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January 21, 2026
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First version of custom QA40x Audio Analyser
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34
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1275
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January 15, 2026
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I2S bug QA403 after triggering PUT /Settings/Default
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6
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192
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January 12, 2026
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IDLE Feature Request
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4
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135
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January 11, 2026
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Amp Dynamics Automated Automated Test Bug?
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5
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123
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January 11, 2026
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USB C to B Cable
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0
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69
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January 8, 2026
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Dynamic Headroom Measurement
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2
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96
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January 6, 2026
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QA403 and Tube Amp setup
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23
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548
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January 2, 2026
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Generating Other Waveforms
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9
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260
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December 18, 2025
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Looking to learn about ErinH's test setup
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3
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175
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December 10, 2025
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QA403 I2S Input / Output
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24
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1330
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December 9, 2025
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Problems when sampling over 48k... Check your USB hub
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6
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167
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December 3, 2025
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Early rolloff before 20kHz
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5
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73
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November 20, 2025
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