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About the QA40x category
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1
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682
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August 9, 2023
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Mesurment setup
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3
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127
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March 25, 2026
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Input bandwidth and display settings
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3
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103
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March 11, 2026
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QA403 Availability
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1
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101
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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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195
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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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209
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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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99
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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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188
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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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185
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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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1061
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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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200
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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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749
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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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276
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January 27, 2026
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QA403 Antialiasing?
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2
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63
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January 27, 2026
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Improvements to the software?
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88
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1677
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January 26, 2026
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An XLR cable adapter
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17
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892
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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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106
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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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1298
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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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193
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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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124
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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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99
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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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570
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January 2, 2026
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Generating Other Waveforms
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9
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270
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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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176
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December 10, 2025
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QA403 I2S Input / Output
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24
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1358
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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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171
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December 3, 2025
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