Distortion is down to incredibly low -135 dB.
D30PRO goes against the trend, producing superb and identical results with all three inputs:Edit: forgot the multitone:.
So no consequence as far as audibility.
When I measure jitter on DACs these days, usually USB is great but Toslink and Coax, not so much.
This is a very mild version and starts well above audible range ag 45 kHz.
You take out noise in audible band and park it in ultrasonic range that we don\'t hear.
It is a technique for reducing noise in audible band called noise shaping.
Let\'s look at the spectrum to find out:Ah, it is not distortion.
My analyzer noise plus what the D30PRO has on its own contribute to bring SINAD down to 120 dB:Switching to RCA out, we loose a tiny bit:Dynamic range is superb:As is intermodulation distortion versus level:Linearity is absolutely perfect:Five filters are provided:Nice to see very high attenuation with Filter 2 which is the default.
Distortion+noise was quite high versus frequency when measuring wideband:This could be either distortion, ultrasonic noise, or both.
Distortion is down to incredibly low -135 dB
