Dirac and room correction software

[Rodney Gold]

You can limit the freq range..try only correcting from 250 hz down .. you retain much of the original sound of the speakers
I have compared a direct signal to running it thru the DDRC 22 in bypass and there was a sight difference as the DDRC upsamples to 24/96 ..you cant change it.. didnt feel it degraded the music .. the 24/96 was sightly more airy.. it was a little "softer" sounding. something I have noticed with dacs that allow you to upsample
But i have to qualify this..as one input used toslink and the other input on my d prem used SPDIF .. not 100% apples with apples

At the end of it all You need to get a target curve you like, its a taste based thing..whatever sounds good to you
Read this re eq ...
http://www.tenthegg.co.uk/tips/t013/
Have Fun