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About the QA40x category
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1
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701
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August 9, 2023
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Testing amps upto 300W into 8ohms
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5
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55
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June 19, 2026
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QA403 I2S Input / Output
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33
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1609
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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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121
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June 6, 2026
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Multiple QA403 devices
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6
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154
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June 5, 2026
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First impressions
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2
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130
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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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103
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May 27, 2026
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QA403 availability in Eleshop
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3
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235
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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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165
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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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249
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May 10, 2026
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QA403 ADC overflow
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4
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179
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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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553
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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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353
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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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162
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April 11, 2026
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Mesurment setup
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3
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220
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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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137
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March 11, 2026
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QA403 Availability
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1
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200
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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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236
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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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322
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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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123
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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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213
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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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201
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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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185
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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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1219
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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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213
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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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921
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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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182
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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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295
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January 27, 2026
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QA403 Antialiasing?
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2
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82
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January 27, 2026
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Improvements to the software?
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88
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2061
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January 26, 2026
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