Hi friends!
I had previosly posted this issue here and at PSWbut up to now, no one had come with a very good explanation. You can talk about polos, zeroes, transfer function, delay group, phase distortion and so. I will do all that I can to understand properly this... here itgoes..

I was doing some reference listening through some recent CD purchases the other night. I was shocked at how much distortion is on vocals and acoustic instruments on some CD's. Some specific examples:

Anybody experiencing this? Had 24 tracks going with a channel strip inserted on each track. 3 Realverb Pros running as sends, 1 LA-2A as insert on a group channel, 1 1176LN insert on the bass track. On mixdown, distortion is heard on the bass track alone. Tried mixdown without the 1176LN insert on the bass track... no distortion! Anybody experiencing this?

OK, I just (using Toast 3.5.6) burned another Demo disk (from masters created in PTLE) just as I always do but, this time something strange happened. I usually take a listen to the new CD by playing it on the internal CD Rom drive of my G4/400 using the Apple CD Audio Player app.