staticV3
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The Amp's volume knob is set to max.1.
Could someone please explain this measurement to me?
How does it work? And what kind of signal is used for it?
It is connected like so:
APx555 DAC->A90->Dummy load->APx555 ADC
(last two in parallel)Then, the APx555's DAC plays a 1kHz sine wave at very low level and measures what comes out of the Amp.
Increase the level and measure again, rinse and repeat.
At some point, the Amp reaches its maximum output level and clipping occurs.
The A90D can drive the Susvara to about 116dB SPL peak. Both at 1kHz and as an average value between 300Hz and 3kHz.2.
What volume would I get with the A90D and a 60 ohm headphone, 83 dB sensitivity
(and what frequency are you referring to on this)?
It is not 83dB/mW btw. HiFiMAN likes to overestimate their headphones' sensitivity. 3rd party, independent measurements have shown closer to 80dB/mW.
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