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24 Posts
Discussion Starter #1
A friend of mine is installing a stereo in his boat and was wondering what would be the best way to wire up his speakers. I have listed his components below.

Radio: JBL PRV-175
Speakers: 4 X JL Audio MX770-CCX-SG-WH
Subwoofer: 1 X Bazooka MBT8014
Amp: JL Audio M700/5

The amplifier @ 12.5 volts puts out:

Main Channels
60 watts RMS X 4 @ 4ohms
90 watts RMS X 4 @ 2ohms
180 watts RMS X 2 @ 4ohms

Sub Channel
180 watts RMS X 1 @ 4 ohms
240 watts RMS X 1 @ 3 ohms
300 watts RMS X 1 @ 2ohms

Obviously the subwoofer would just get wired up directly to the amp and see 180 watts RMS because it is a single voice coil 4ohm sub.

His question is, what would be the best way to wire up his 4 coaxial speakers to achieve the loudest sound? They are 4ohm single voice coil speakers that handle 70 watts RMS/225 watts Peak.

Any suggestions are appreciated.

121 Posts
I would think unless you got 4 more speakers and wired the at 2 ohms. You would just wire them at 4 ohms. I don't think that amp is 2 ohm stable bridged
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