Question about Alpine MRP-F250 Car Audio Amplifier

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Hi, I've just install an alpine power amp with JL 10inch subwoofer, everything seems to be working properly except for the subwoofer

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If you have the RCA's running from the head unit to the amp, and the speaker wires running to the speakers then you have it hooked up right. Now If you still don't have any sound then you need to look at the amp to make sure that you have a green light. Still I would use 8 or 10 gauge power wire and then the same for the ground wire, make sure that you have a good ground.

Freakville03

Posted on Dec 22, 2008

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I have an Alpine PDX-5 amplifier powering my door speakers and my JL 10 w3v3-2 ohm subwoofer. The door speakers are still working, but the subwoofer has stopped working. Every once in a while it will...


check the power and ground and also the turn on lead that goes to your radio for a loose connection if thats not it then your amp may not be working or the subs

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1 Answer

Installin car systems


you dont want to connect both of those amplifiers together. You could run them separately to separate subs or the jl to your sub and your alpine to your front speakers. But you dont ever want to mix and match amps to the same sub. Even if you had 2 jl500/1's you wouldnt want to just hook them up together. Because they both have to be putting out the exact same amount of power. Which no 2 amps are ever exactly the same. Some companies make bridges to properly connect 2 exact amps together. I Hooked up 2 JL 1000/1's to each voice coil on a 13.5 W7 and i smoked the sub. So i definitely dont reccommend doing it unless the amps are conneccted to separate things.

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1 Answer

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Dang man you roasted it, take it in and get it replaced.Check the gain on the amp try it at 1/3 to 1/2 gain and dont crank up the bass boost all the way try it at like 2/3 that should clean up your sound and cut down distortion-distortion kills subs by heat.

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this is the problem with the additional battery wiring. use appropriate cutout and do rewiring. make sure the Dynamo has the enough capacity to charge both the batteries. better avoid using your music system till the problem is rectified.

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1 Answer

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Hello drsubhakar26,

JL W6's will perform well with from 150-600 watts RMS. W7's with from 150-500 watts. Less expensive Alpine Type R's work OK with from 200-500 watts RMS. Either of the brands will sound good. None of them will perform to their full potential with 300 watts RMS. Powering any sub with a 2-channel amp is a compromise. A monoblock is more efficient.

Hope this helps.

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its not the amps my dude ur ohm loading is wrong if u have a 4 ohm stabled amp n ur speakers r 2 ohms naw thats not gonna fly caus it cant put out what ur asking 4 so u need 2 reload ur subs try this link http://www.bcae1.com/spkrmlti.htm this should help u out n save u money

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1 Answer

Best amp for Kicker Sub


Hello dalex7,

The Kicker 08ZX400.1 would be a great amp for your subwoofer. It will work into a 4ohm load with no problems.

But you can buy an amp with more power, looks better, has a smaller footprint, and cost less than the 400.1. I'd look at the Alpine MRP-M500. Take a look at it here at Crutchfield. The M500 is also easy to install, runs cool, and is very efficient.

Hope this helps.

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1 Answer

Equipment not turning on!???


Have you tried checking the remote wire yet? Because it could very possibly be that. Without a remote wire hooked up, you cannot get any power. Try that and see if it works.

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1 Answer

Just died out..


Have you determined if the problem is with the amplifier or the subwoofer?

 

Have you checked the wiring to make sure that there are no loose connections?

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1 Answer

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ok try your sub on another amp is first find out if that works or not if it works then there's a good chance you amp is knackered

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