QSC amps are actually excellent for their designed and sold purpose,
which is not domestic hi-fi. I worked on a HOW organ and PA integrated
system that used three of them in "straight" mode and one other used as
a rotating speaker driver. Sounded great.

As a hi-fi amp they are probably better than some of the **** sold
thorough mid-fi channels but are audibly deficient when used with high
efficiency speakers at low volumes. In other words, they sound just lie
a Mcintosh MC1000-or any solid state Mac over about 150 wattsw a
channel.