I posted the same question over on AudioAsylum's Digital Drive and received a response that the Quad might not show the correct sampling rate (i.e., the Quad may be receiving a 96kHz signal from the Behringer even though its display says the signal is 48kHz.) Here is a link to this response:
http://www.audioasylum.com/audio/digital/messages/128991.html
Interesting. I wish I had another DAC so that I could troubleshoot the situation.
http://www.audioasylum.com/audio/digital/messages/128991.html
Interesting. I wish I had another DAC so that I could troubleshoot the situation.