Has anyone had the chance to hear both these DACs? I recently bought an Ayre AX-7e and really like it. I am using it with a Chord Qutest, which sounds great but am itching to try a balanced DAC with the Ayre. If I get the Chord used I think they will be within $500 to $1000 of each other depending on what I have to pay for a QB-9. Thanks in advance for any opinions you might have.