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Old     (curt489)      Join Date: Feb 2008       04-14-2010, 6:44 PM Reply   
I have some 6x9 aerial tower speakers and they read 4 ohms on the back and the in the manual. When i ohm them out through the my tower speaker wires they ohm out a 3.3 ohms. I wired them up to my four channel sony amp( specs below) and they didn't work. So i put them on the bridged terminal they worked for about 10 mins of playing hard on them and i blew a fuse.

On the other side of the amp i have 2 6.5" polk dbs 4 ohms each on a channel by themselves and they were doing fine.

My questions is why would these speakers be reading 3.3 ohms? And should this sony amp be able to push these four speakers?

Sony marine amp
Class AB
Channel Operation 4
RMS Power @ 4 Ohms 4 x 60 Watts
RMS Power @ 2 Ohms 4 x 70 Watts
Total RMS Power 280 Watts
Peak Power Output 440 Watts
Minimum Impedance Unbridged 2Ohms
High-Pass Crossover Frequency 80 - 20,000Hz
Low-Pass Crossover Frequency 80 - 20,000Hz
Signal-to-Noise Ratio 97dB
Frequency Response 20 - 20,000Hz
Input/Output
Fuse Rating 2 x 25Amp

 
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