Voltage conversion in Wyred4 Sound DAC

Gnanasekhar, electronics equipped with switching power supply will often operate over whole voltage range. One example might be Benchmark DAC2 that operates 88-264V 50/60Hz.

I have older version - DAC1 but it is not universal (linear power supply).

Dac 1 and 2 both have a linear power supply.

Not only that Benchmark DAC2 has switching power supply but also
has many of them inside. It uses main +12V switcher and then
DC/DC converters to create +/-18V. I don't know of linear power
supply that can operate from 88 to 264 VAC without any switch and
at the same time to be able to operate up to 373VDC.

services/dac-modification/benchmark-dac2-
modification/>http://mysoundaffairs.com/modification-
services/dac-modification/benchmark-dac2-modification/

Look at the picture - perforated metal box in front is Switch Mode
Power Supply.

[url]http://www.audiostream.com/images/112613benchmark7.jpg[/url]

I had asked W4S along time ago for the DAC2 which i bought.
The DAC-2 requires a power supply pin configuration change. Contact W4S directly. I was told that they can supply a power jumper that can be used to reconfigure it for one of the voltages, and be left out for the other. I have not done this but best bet is to double check with them. At least those designs were changeable if you open the cover and get the new jumper.

Thanks a lot for your kind opinions