Did they have the A23 though or the larger units?
I figured it was noise coming from within the small A23 enclosure. The Halo line actually had similar noise issues with one of their other components which was actually mentioned by Paul over at the Hometheatrespot when he first reviewed the new Halos.
Parasound commented on applying a fix for the noise by adding some internal reflective material but again, this was not for their A23 amp.
I really like the Halo amp and may buy one used at some point so i can do components tests more easily with their line adjustable gains on the rear, something i haven't seen in any other amp yet.
It was truly feature packed for a good price.


"Those who preach the myths of audio are ignorant of truth."