STEG amplifiers

[XXX55]

Originally Posted by CanadianX5

A hissing sound is miss matched gains. (Easy fix)
A buzzing sound (gets louder with RPM's) is alternator whine (fixable but BMWs are notorious for this problem)

I don't get the buzzing sound but only the hiss. i'll get my audio installer to fix the gains next week when all my add on equipments arrive

[Micah D. Cranman]

We've heard the Focal / Peerless stuff, but haven't explored using them in BMW applications, specifically the X5. So, I can't comment on how they'd compare to Rainbow.