I am considering the purchase of the F-2800 amp for my work car which is all factory speakers except the Alpine head unit and I just can't justify spending too much money on it for the use. So I just want to add some low end to the system but also give myself the room for some upgrades for the mid and high ends if I choose to in the future. I'm uncertain about the lower end brands and am very open to some suggestions for other amps around or under the $300.00 mark for the amp itself. As of right now I have picked out two Audiobahn AW1251T 12" subs in a bandpass box, but I?m open for any suggestions there too (Something around the $250.00 mark for the pair). Thanks in advance for any suggestions!!!
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There is a number of things that can cause no sound from the amp.
Check to make sure your RCA's are plugged in to the amp. Make sure the ground and remote are not touching on the amp. This will cause your head unit to gray out in some areas. Verify, your subwoofers are in working order. Test another pair of speakers on your amp to make sure. If those speakers work, your subwoofers are fried or have come unhooked inside your subwoofer enclosure. Make sure you have not set the head unit to Surround Sound if you have a DVD player in your vehicle. This should be set as passive. Make sure your gains aren't turned down on the amp. MAKE SURE YOU DIDN'T BLOW A FUSE UNDER THE HOOD. Even if there is a light on the top of the amp, the fuse might have blown. Make sure a fuse on the amp didn't blow. This will in some cases cause the amp to go into protect and no bass.
You can use the factory speaker wiring for the Infinity speakers you should purchase a amp kit which will give you everything to install the amp. See site below
Well that all depends on the current audio system you have now is it just a basic or a premium factory system with a factory amp. Honestly you would get a better and cleaner sound if you change the factory head unit to a after market one which has preamp feeds and the higher the preout volt the better. Just make sure it is compatible with the amp volts input (Example 4v to 250mv) If you use the factory headunit you would have to by a high to preout adapter it connects to the exsiting radios speaker leads, but like I said before change the head unit you won't be sorry. Do not forget if you change the radio you need a radio install kit and the wiring harrness which converts the two radio plugs so you don't cut them so down the road you can remove the after market radio and just replug the factory right back in.
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.
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.
lol i had the exact problem that you are having with my alpine. The solution is taking the blue cord that was inside the vehicle (forgot what cord it was) and actually connecting it with the other blue cord thats different makes the factory amp read the cd player and ta-da it works. crazy isn't it