jl amps

Dimensions: 13-13/16"W x 2-1/2"H x 9-1/4"D
Rated Power 12.5 V Bridged: 90W RMS x 2 @ 8 ohm / 150W RMS x 2 @ 4 ohm
Rated Power 14.4 V Stereo: 70 W RMS x 4 @ 4 ohm / 110 W RMS x 4 @ 2 ohm
Rated Power 12.5 V Stereo: 45W RMS x 4 @ 4 ohm / 75W RMS x 4 @ 2 ohm

what out of this this two amps what will hit harder on 3 subs. each sub is 3200 watts and 1600 rms sub they are hifonics olympus spl.

You have 4800 watts RMS total power handling. Your car doesn't have the power to push 1200 watts RMS.

Just because the subs can handle this doesn't mean you can load an amp right with three subs with the right impedance (ohms).

If your total system power is 1000 watts RMS or more, you will need to:

1. Upgrade the alternator to a high output alternator
2. Upgrade to a heavy duty deep cycle battery
3. Upgrade the "Big 3" - that is to replace the power wire between the battery and alternator, the ground from the battery to the chassis and the ground strap from the engine/tranny to the chassis with at least 1/0 AWG wire.

If your total system power is 800 watts RMS or more, you will need to:

1. Upgrade to a heavy duty deep cycle battery
2. Upgrade the "Big 3"

Failure to do this will result in you replacing them anyway as the alternator will eventually fail.

Here is a guide that will calculate what size alternator and power wires you need http://www.datafilehost.com/download.php ?file=6d26c621

A second battery is never a good idea as it's an added strain on the alternator to charge two batteries AND supply power for the car. The ONLY time a second battery is useful is if the audio system is to be used with the car off.

A cap is only good so far as the audio system isn't trying to pull too much from the electrical system. A cap doesn't provide more power, it's designed to 'stiffen' the voltage to the amp, nothing esle. If the current isn't there, a cap won't help. The alternator must have at least 20% more amperage power than the entire vehicle and sound system combined for a cap to be of benefit which is ironically the same requirements for an amp to be efficient.

See my site for more info http://spkrbox1.spaces.live.com

2007-11-19 14:54:43 by intense_2u

do jl audi0 amps shut off to alow them to cool off when they get to hott? and do they get real hot bc im thinkin of gettin a 500/1 amp with a 12w7 and a 450/4 amp and whats the best box the the 12w7

An amp must be in a well ventilated area and not driven to the point of shutdown (too low of ohms on any channel).

The box size/type will be best acquired from the manufacturer of the subs.

For info on box types, go here:

http://spkrbox1.spaces.live.com

2006-09-15 14:26:33 by lilneal7