Thinking bout replacing the 8-channel a/d/s/ with two 4-channel Van Gogh's. Soundstream used to be bangin' back in the day but like a lot of top brands, I'm wondering if quality went down. The set-ups in 2 cars would be: Benz - 1 amp running 2 sets of components 80w x4 and the other amp bridged running 2 memphis 10's 320w x2. Car 2 is 97 Probe GT-would be running just one of these amps at 2ohms. 160x2 for all highs and 160x2 for 2 12's. Any thoughts? Thanks guys!