Quote Originally Posted by ROBSCIX View Post
Actually, I just had a look at my results again and it is about ~115dB (act. 115.1 dB measr.) so those specs are fairly accurate. I mixed up the spec with another card.

Also your other post is a bit off about the STX, the STX has a SNR of about 124dB. If you measure the card you will get about a 117dB SNR which is why you quoted that # I suspect.

There are many reasons why that number would come up for the STX but mainly because if you do a loopback test with the STX you will hit the limits of the recording section which is 117 dB.
The RCA speaker outputs are 124dB, and the 1/4" RTS headphone outs are 117, as per ASUS's statement. I didn't measure anything myself.