I finally commited to Asus Xonar DS that supports 24 bit 192KHz. I downloaded the driver from Asus site but 6 channel PCM audio only plays through front left and right speakers.
I also downloaded ASIO4All driver for foobar2000, but no luck. I tink I am doing something wrong.
Does anyone have any good instructions? I did setup the switches in the windows speaker setup screen for "exclusive control".