Anyone tried this 16x TDA1543 NOS dac?

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I got this board from a Czech seller of Ebay.
I think the design with the TDA1543's on the bottom of the board is clever as the enclosure becomes the heatsink. I also like the use of surface mount parts.
Any of you guys that has tried it? Or something similar?
Parts used are:
Panasonic PPS
Panasonic FC
Elna Silmic II
Epcos inductors
PRP and Amtrans AMRG resistors.
 

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No one?
Anyway, got it fully populated today as my fiance and my daughter is out for a few hours with my mother in law.
We'll see when my chronic pain, and time, lets me put it in and enclosure and fine tune the stand-offs for perfect clamping of the DAC IC's to the enclosure.
I'm thinking of taking a page from custom PC building here and have small springs between the enclosure and the PCB for easy adjustment of the clamping pressure.
Parts used are PRP and Amtrans resistors, Panasonic FC and PPS(SMD's), Elna Silmic II, Epcos inductors and Mcap EVO. LM317's are ON and the BC550C's are matched, though they don't need to be.
 

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