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Big test of DIP dual op-amps for audio: LM4562, NE5532, OPA2134, TL072 and LM1458
- Thread starter pma
- Start date
Yes. Wanted to lilustrate just that voltage noise thing.
And FET input is better at very high inpedance.( Current noise).
But at 2 to 10 kohm, the cheap good ones are sufficient and the distortion gain drowns inn the noise anyway.(ok, a little dogmatic)
Don’t think it is clear to everybody, hence the opamp swapping in circuits with 2 k resistors.
And FET input is better at very high inpedance.( Current noise).
But at 2 to 10 kohm, the cheap good ones are sufficient and the distortion gain drowns inn the noise anyway.(ok, a little dogmatic)
Don’t think it is clear to everybody, hence the opamp swapping in circuits with 2 k resistors.
@pma. You probably already know about the stepped responce in REW.
Can show seperate harmonics and noise at down to 0.1 dB intervals. Takes forewer, but the graph is very informative.
Each messurement can get repeated and high Fft bin count so the noise pr bin gets down. Then the distortion gets through nice and clear. Example, took about 6 hours, so let it go overnight
www.audiosciencereview.com
Can show seperate harmonics and noise at down to 0.1 dB intervals. Takes forewer, but the graph is very informative.
Each messurement can get repeated and high Fft bin count so the noise pr bin gets down. Then the distortion gets through nice and clear. Example, took about 6 hours, so let it go overnight
SMSL DL200 the best ever value DAC/AMP?
If you mean whether you can control the hardware volume from the USB host, no, that option has not appeared. Yes, that was my question! Thank you for your answer!
www.audiosciencereview.com
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