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In the Forum: Didital Things
In the Thread: High Quality Music Server / CD player
Post Subject: AFI1 now works 'properly' in dual-wire modePosted by manisandher on: 11/4/2009
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 manisandher wrote: |
| The only issue that I have with it is that I can't use the PMII in Master mode at rates of 176.4 and 192KHz... the AFI1 cannot double the clock frequency from the PMII. |
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The latest firmware 'fixes' this issue. The AFI1 can now work in dual-wire mode at half or full audiorate clock frequencies.
What totally amazes me is the huge difference in sound between using the AFI1 with the PMII in MASTER vs. REF_CLK modes (at 176.4KHz and 192KHz SRs). The sound is transformed from a hard-etched one to a totally fluid one. I can only assume that this is down to the use of a poor* clock and/or power supply in the AFI1.
At these SRs, I've been using the Reference Recordings 176.4 material primarily. However, the difference is still pronounced when using 16/44.1 material and the 'Arc Predicition quad upsampling' feature in the XXHighEnd player. The latter is especially interesting with the PMII, as it has been designed to work with NOS DACs... and I believe that the PMII works in NOS mode at 4fs (I'd love to know this for sure though).
* 'Poor' in relation to the clock/PS in the PMII.
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