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Need help setting to play DSD on Pre Mcintosh C2700

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hug79:
Hello,
I 've installed JRiver 26 on Macbook air 2019 & just bought Mc C2700 (its USB input playback support up to DSD512).
When I connect USB from Macbook to C2700, it 's only play up to 352,8 Khz. Especially, playing DSD file (11,2 Mhz) there is a lot of noise.
I 've tried to change bitstreaming to DSD, output encoding to DSD but it cant play.
Just need a help on setting to play DSDon C2700
Thank for your help

Manfred:
As far as Apple hasn't change their OS in the last months you can play only DSD256/384kHz PCM on Mac, unless Mcintosh have a custom driver for Mac that allows higher rates. It is a limitation of mac OS.

hug79:
Thank Manfred for your support.
Could you help me in setting to play DSD256/384kHz PCM on Mac? I 've tried but failed.
Thank you so much
Br,
Hug79

Manfred:
I have checked with my ADI-2 DAC FS and my MacBook Pro. I only have 8 GB RAM which is too little - I always have 1-2GB swapped. (Typically I use Devialet AIR and not USB)

1. Connect your C2700 with an USB cable to your Mac/Macbook Pro - No Hub please
2. Under Tools->Options->Audio you should see your C2700 like "AD-2 DAC [Core Audio]
3. Set Bitstreaming to Custom (enable DSD Up to DSD256)
4. Check Under Tools->Options->Audio->Advanced Configure input plugin ->DSD input plugin ->Safe/Auto
5. Memory playback (if you have enough memory) : Load full file (not decoded) into memory (the other method is very CPU demanding)
6. Check Apple Audio MIDI Setup (You should see your C2700 there and the supported sample rates)

Play a DSD 64 track and check Audio Path Input: DoP DSD 64 (1x) Output: DoP DSD 64 (1x)

DSD 256 also plays nice LSO Schumann Symph.

hug79:
Dear Manfred,

Thank you for your support.
I did set up the JRiver as following pictures. If I play DSD 64 to DSD 128 (dsf file), pre C2700 only shows 176.4 kHz & can't hear anything (picture  08). I 've alo checked Apple Audio MIDI Setup, it automatically changes to 176.4 KHz after playing DSD 64 or DSD 128.
Everything is OK for 44.1 kHz.
Do you have any corrections in my setting? My Mac uses Catalina ver 10.15.6
Thank

Br,
Hung Tran

P/s: sorry for not switching to English version in my Mac. It will make you have to guess ^_^

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