This will be my first foray into the world of high-end DAC's and I have decided to put my money on the RE5.2 (I have been eyeing the Violectric V800 for quite some time now as well).
On the RE5.2, I thought about requesting the following change. Change of the optical-digital WM8805 (24/192) for a DIR9001 (24/96) optical connection. The reason for this is listed bellow.
What are your thoughts? Maybe the Reference 7.1 owners can chime in on this one as that's the stock optical connection on that unit.
The stock inputs on the RE5.2 are as follows:
1x USB -- [Tenor TE8802 @ 24/192]
2x Coax-digital @ 24/192
2x Optical-digital -- [WM8805 @ 24/192]
This is Audio-gd's write up on the differences between WM8805 and the DIR9001.
1, SPDIF interface :
The default SPDIF interface is WM8805 module, it can free to replace by the DIR9001 module while place the order . Customer can buy the extra DIR9001 module cost USD22.5 .
What different between the DIR9001 and WM8805 modules : The WM8805 sound slight warmer , support up to 192KHz . the DIR9001 sound quite neutral, support up to 96KHz .*
*For best performance of the WM8805 we design the WM8805 signal lock is slower , so change the input maybe have 0.3 second noise but have not effect on normal playback .
My experience with the audio-gd NFB-3 is that the DIR9001 receiver board sounded cleaner and more detailed than the WM8805 board. My current Ref 5 has the DIR9001 as standard. Personally I'd go for the DIR9001 with the Ref 5.2 unless you intend using 24/192 music. You can always spend the extra $25 or so and get the DIR9001 board fitted, but ask for the WM8805 board to be included with your shipment for possible future use.