This weekend, decided to hookup the Behringer DEQ2496 digital EQ processor to the test gear and see how this measures. Normally, this unit is set up to provide room EQ via a digital loop with the Transporter so I've rarely had a listen to the analogue outputs.
Internal DAC is the AKM AK4393, the little brother of the Transporter's AK4396. About 6 months ago I actually hooked the DEQ4396 to the main system to have a listen and I must say that I had a difficult time AB'ing it with the Transporter so I have some idea that it likely measures quite well. The set up for this: Transporter --> TosLink --> Behringer DEQ2496 --> XLR --> E-MU 0404USB --> AMD laptop. All plugged in to the Belkin PureAV PF60 power conditioner. Here are the RightMark results (the DEQ2496 only has XLR output): 14492 Not bad. The DEQ is capable of ~18-bit dynamic range. As you can see, the Transporter measures better with an extra (literal) "bit" of dynamic range. Here's the DR graph: 14494 I noticed that for the 24/96 test condition, the Transporter is significantly flatter than the DEQ2496. It's ultrasonic in any case. 14495 Finally, the jitter FFT plot (24/48 signal)... 14496 This is where I'm "disappointed" with the DEQ2496. It appears to have poor jitter rejection at least with the TosLink interface. The reality of course is than in real music, I still can't say I can hear this. Conclusion: For a product that costs ~$300, the DEQ2496 remains a great bargain. The RightMark results are good but it's prone to (TosLink) jitter. Subjectively, it sounds good on my system compared to the Transporter despite the Transporter's much better jitter results (again, does jitter really matter in a perceptible way unless it's crazy high?). Nonetheless anyone buying this unit is in it for the digital EQ, not likely the DAC quality... +-------------------------------------------------------------------+ |Filename: Jitter_24-48.jpg | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=14496| +-------------------------------------------------------------------+ ------------------------------------------------------------------------ Archimago's Profile: http://forums.slimdevices.com/member.php?userid=2207 View this thread: http://forums.slimdevices.com/showthread.php?t=97950 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
