raoultrifan
Headphoneus Supremus
Will try the TOSLINK soon, thank you.Did you try optical input in your PLAYMATES? I just did and i think it sounds even purer :O There's no ground loop, no usb power trash gets throgh, no USB driver problems, issues etc. (of course). Despite the limited toslink bitrate it's absolutely worth to try!
btw. thanks for the graphs, now I'm using MP-FAST filter on my setup
Cheers,
Dżoneł
Indeed, there is some noise visible on my scope and ARTA measurements when inserting the USB cable, but this normal and is happening on all my DACs (none are having USB isolation).
Given that I can barely hear PLAYMATE's background noise in the middle of night (very silent environment) with my test headphones I can strongly recommend PLAYMATE as a very good all-rounder combo. Worth mentioning again that my test IEM's are pretty sensitive:
- 16 Ohms
- 103dB/mW
- 121dB/1V
So with 900mV I get 120dB SPL and getting -85dB lower I only need 50uV (usually my ears can't hear a background noise lower than -85dB). On my scope I was able to get a noise of 59uV vs. PLAY that had 111uV (I wasn't using the cleanest setup ever, so in real life and with an AudioPrecision, output noise might be lower). To my ears, PLAYMATE (LME49720/JRC5532DD) has a very low background noise, like 10-15% lower than PLAY (NE5532/5534).
PLAY vs. PLAYMATE (background noise)
Worth mentioning that on ARTA this noise is somewhere between -140dB and -130dB, will post updates soon.
P.S.: If you want to try PLAYMATE with an extremely sensitive IEM like FiiO FH5, then background noise will probably be a bit too high for you, given their sensitivity of 112 dB/mW (129.2dB/1V) and their impedance of 19 Ω. However, any 16-32 Ohms with a sensitivity lower than 105dB/mW should be a great pair with PLAYMATE.
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