Creating a stereo cooler and it's been a while. Questions about wiring and Ohm load.

[pickelgeuse]

I'm thinking about purchasing this amp system from Amazon:

http://www.amazon.com/gp/product/B00TZOAQOM/ref=ox_sc_act_title_4?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

Pyle PLMRMBT7S Marine Grade 1200 Watt Amp Bluetooth 4-Channel Amplifier (Silver)

It is a 4 -channel amp that is 2 Ohm stable, it also says it has "electronic crossover networks." I would like to hook up 2 6.5" 2-way speakers and one 8" subwoofer. The subwoofer is a 4 Ohm speaker. Is this possible? How would I best accomplish this? Bridging?

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[n2audio 5,000+ posts]

You need a 4 ch that's bridgeable and that one doesn't appear to be. It would run a pair of speakers w/o a problem, but the sub would be left to run on one of the two remaining channels, and judging by the 15A fuse recommendation it probably wouldn't see more than 30w or so.

 

[trumpet 5,000+ posts]

Almost all amplifiers for mobile applications have at least a selectable high pass or low pass crossover filter. That's what "electronic crossover network" means. High pass would be for the 6.5" speakers and low pass is for a subwoofer.

Bluetooth Marine Amplifier, 1200 Watt 4-Channel Water Resistant Amp (Silver) - PLMRMBT7S - Pyle - Quality Audio Inc.

I see no indication that this amplifier is designed to be bridged. Pyle is low end and none of those power ratings are believable. It says "1200 Watt" in the title, which is impossible, yet below it says "4 x 500 Watts RMS @ 2 Ohm" which is even more outrageous.

If you're going to buy this package regardless then I recommend you use a dual 4 ohm subwoofer. Run 2 amplifiers channels unbridged to the sub.

You weren't asking for advice on the cooler, but I recommend you simplify it and put in a pair of good 6x9s. I just built a cooler that way and the bass is enough to cause problems with resonances, plus it was all a tight fit.

 

[pickelgeuse]

Thank you both for your input!