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About the QA40x category
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1
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697
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August 9, 2023
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USB: startech ST4200SUBM: USB 2.0 hub ok?
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5
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56
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May 30, 2026
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First impressions
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2
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83
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May 27, 2026
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Capture long audio input signal (above 22s~)
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3
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87
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May 27, 2026
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QA403 availability in Eleshop
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3
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212
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May 20, 2026
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"Ringing" in Freq response using Triggered Response/Expochirp with Streamer
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8
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131
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May 19, 2026
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QA403 output on my oscilloscope
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5
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204
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May 10, 2026
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QA403 ADC overflow
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4
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168
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April 27, 2026
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6dB gain with Differential Cables
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4
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547
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April 13, 2026
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I don't understand this 6 dB gain
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3
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345
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April 13, 2026
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QA403 - 1000W audio amp-speaker test issue
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5
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148
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April 11, 2026
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Mesurment setup
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3
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211
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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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130
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March 11, 2026
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QA403 Availability
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1
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186
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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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226
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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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282
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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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118
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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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208
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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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199
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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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150
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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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1156
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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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211
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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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870
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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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176
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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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294
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January 27, 2026
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QA403 Antialiasing?
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2
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75
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January 27, 2026
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Improvements to the software?
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88
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1975
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January 26, 2026
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An XLR cable adapter
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17
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965
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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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121
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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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1395
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January 15, 2026
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