Stereo Amplifier

[Farmflyer]

Hi. I have a 2007 Sundeck. I have the original factory stereo with Polk speakers and amplifier. The amp is a Marine Amplifier, 4CH, 100Wx4 EAA046B. I bought the boat last year, and noticed the amp was not powered. I pushed the 2 fuses in and out several times, and then had a good a power-on indicator light. The only speaker wired to the amp is the sub woofer. There may have been wakeboard tower speakers wired to the amp by previous owner, but he removed them. The sub did not seem to work last summer at all. Is this the correct factory setup, or should the amp be driving all of my speakers? I just de-winterized my boat a couple of weeks ago, and now have no power-on indication on the unit. The amp looks like new, but I realize things can fail or break. I would love to get my sound system working correctly this season. Does anyone have any trouble shooting advice, or a good replacement amp? Or, should I just hire a professional? Most of our techs are busy for the next 2-3 weeks with other customers. Thanks for any and all advice. Mike

 

[CliffA]

Hi. I have a 2007 Sundeck. I have the original factory stereo with Polk speakers and amplifier. The amp is a Marine Amplifier, 4CH, 100Wx4 EAA046B. I bought the boat last year, and noticed the amp was not powered. I pushed the 2 fuses in and out several times, and then had a good a power-on indicator light. The only speaker wired to the amp is the sub woofer. There may have been wakeboard tower speakers wired to the amp by previous owner, but he removed them. The sub did not seem to work last summer at all. Is this the correct factory setup, or should the amp be driving all of my speakers? I just de-winterized my boat a couple of weeks ago, and now have no power-on indication on the unit. The amp looks like new, but I realize things can fail or break. I would love to get my sound system working correctly this season. Does anyone have any trouble shooting advice, or a good replacement amp? Or, should I just hire a professional? Most of our techs are busy for the next 2-3 weeks with other customers. Thanks for any and all advice. Mike

just guessing here but i bet the amp was installed just to power the subwoofer....the 4 other Polk speakers are likely being powered either by an internal amp in the head unit or a smaller 4 channel amp located somewhere near the head unit....i am certainly no expert here but i think it would be difficult to wire a 4 channel amp to power 4 speakers AND a subwoofer....i think a 5 channel amp would be needed for that....there are some very good audio guys on here that will likely help you more than me....

cliff

 

[Wylie_Tunes]

Farmflyer,

The best way to attack this is going to be with a digital volt meter. You need to start by checking for battery voltage across the amp's main power cable terminals. Next, touch the meter leads to the amps negative power cable terminal and the small wire terminal thats labeled as the turn-on. Head-unit on of course, you should also have battery voltage on it. If so, the problem is internal of the amp. If no voltage on those circuits, then you need to trace them back to the source of the voltage loss.

To make the best amp suggestion, detailed model numbers for the sub would help. Also, how many in-boats total. A 4 chnl amp can drive up to two pair of in-boats and a sub, but if a replacement is needed, I would suggest a 5 or 6 chnl for the job.

 

[brewster16]

I love JL Audio or Wet Sounds......

 

[Scuma]

The factory did actually take that 4channel marine pos amp and split it between all 4 speakers AND sub on my boat. Those marine speakers are factory grade crap to be honest and though it says marine on it, the insides are exactly the same as the car amps. For my outside cockpit amp, I have the JL 5/700 which has a designated channel for the sub. Downstairs what I just put in yday because my marine amp fried was the JL6/600 (cheaper than the other one). These things rock and last. I'd recommend one of these though could be pricey


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[BOEMARINEBRIAN]

Wet Sounds all day. Quality marine products from day one. Not a marinized automotive product. A great company and we see very few issue and when we do its taken care of immediately.