MCC404 usually sell for about $500.00-$600.00 used and MX406 $400.00-$500.00.
That MX406 is missing the brushed aluminum end caps and is not showing the separate DC converter and wiring harness in the pics. It's a paper weight without it. If you had to buy that from McIntosh expect to pay big bucks!! Also the MX406's have a security feature like Eclipse. If it's activated you'll need to know the number code to use it.
No crossovers in the pics for the Dyn's and are they even real?
I just want to update this thread in case anyone is looking to buy the McIntosh MX406 that is currently on Ebay. The seller (yesmynameisking) is the same guy that bought the combo that BlueAc originally posted. He also owns another MX406(check feedback) so he should have been able to test it with his other harness and D/A converter.