Integra is very good stuff.
I recently built a rack with Integra Research components.
The top of the line Integra components that are a purple color brushed aluminum.
I haven't heard it yet because the rack can't be pushed back into the equipment room.
The rack is so heavy that the wheels are pushing into the subfloor.
As soon as the finish floor is in, this theater will be rockin'.
Check out this photo of the rack.
The components are from top down, RDV-1.1 DVD/Super Audio CD player, RDC-7.1 AV Controller, 2 RDA-7.1 Seven Channel Amps at 124 pounds each, Signature Series Monster Power and Power Conditoner.
(the date on the pic is obviously bogus, my camera was new and not setup)