AVS Forum Special Member
Join Date: Nov 2008
Location: State of Confusion - 98823
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When you use analog out from your sound card you are using the DAC (Digital to Analog Converter) in the sound card - when you use the optical/Coax (same signal either way) out from the sound card you let the 609 DAC do the conversion to analog. All digital signals must be converted at some point to be usable to the AVR.
Make sure you aren't getting 'crisper' mixed up with 'louder'. Common mistake for the non-trained ear.
Yamaha CX-A5000 - Acurus A100x3 & Outlaw 7075 amps - Salk Song Towers - Oppo 103
Vinyl Room: Emotiva PT-100 - ST-120 amp - Acoustic Research AR-2ax - Marantz TT42 - Oppo 103
Twas a woman who drove me to drink. I never had the decency to write and thank her ~ WC Fields