monsoon speaker impedance
4 ohms are standard for most car speakers.
Blew up a total of 4 Monsoon sail panel speakers in my 99 T/A. First time covered by GM warranty. Later they blew again and given how poorly they held up, I wasn't buying new Monsoon's. Slapped a pair of 4 ohms Kickers in the sail panels ~17 years ago - no more blown speaker issues in car. Sometimes sound is a little off with the mix of 4 ohms & 2 ohms speakers.
No idea on the amped & bi-amped configurations. I think two top door speakers in TA's are bi-amped but not really sure.
As VIP1 suggested, you should check the Monsoon FAQ sticky. Firebird and Camaro Monsoon systems use different speaker setups and the difference is significant. And, contrary to some common "knowledge", the speakers are not all (or even mostly) 2-ohm in Monsoon systems. The Camaro uses 2-ohm subwoofers in the sail panels which is where the rumor started but Firebirds use dual voice coil (DVC) 4-ohm subs in the same location.








