I have a Lightning Audio 750 watt Subwoofer with the RMS being 150 and it is 4 Ohms. My amp is also Lightning Audio 750 watt with the RMS being 250 and it's a 2 channel. I have the subwoofer bridged and even when it's not bridged the amp still turns off at the same volume level. I have 800 watt wire on everything and I also have a half farad capacitor hooked with it. I don't have any idea why it keeps shutting off because everything is hooked up perfectly. And the amp kicks off when I turn the volume up about a quarter of the way loud...I can't even turn it half way up without the amp not turning off!! PLEASE HELP ME! I NEED MY BASS!
2007-07-17 05:03:04 · 8 answers · asked by slimcheesecake7 2 in Cars & Transportation ➔ Car Audio
Follow this steps to determine the source of your problem:
1. The input sensitivity (gain control) may be set too high. Try reducing the gain to see if the amp still goes into protect
2. The amp may be getting too hot due to a lack of adequate ventilation provided in the installation. Check the temperature by holding your hand directly over the amp - if it is too hot to touch, it is too hot to operate reliably. Try to mount the amp in a location that has better ventilation.
3. The power and ground cable to the amp may be too light of a gauge, preventing the amp from getting enough current to provide its full output. Check the size that you installed against the manufacturer-recommended gauge, normally listed in the owner's manual.
4. The impedance load connected to the amp may be below the minimum allowable - normally 2-ohm for stereo operation and 4-ohm for bridged "mono" operation. This could be due to too many speakers connected in an inappropriate wiring configuration, such as two 4-ohm speakers wired in parallel connected to the bridged output of the amp.
5. A short on the speaker wires also creates a low impedance condition.
6. There may be a defective speaker connected to the system, causing the amp to shut down to protect itself from damage. Try disconnecting all speakers, and test the system - one speaker at a time.
2007-07-17 06:06:08 · answer #1 · answered by Mitchell 5 · 0⤊ 0⤋
reasons for amp going into protection mode --bad ground --impedance at the amp is too low --amp is not powerful enough (clipping) --blown speaker --power/ground wires not thick enough --gain (input sensitivity setting) is too high to maximize clean signal strength from your amp, you need to adjust the gain or input sensitivity settings. Here's how: Set the input sensitivity controls of your amplifier to their minimum level (counter clockwise). Put in a CD and turn the receiver's volume control up (you might have to raise the amp's gain just a bit to hear the music). When you hear distortion, stop. Turn the volume down until it disappears. As much signal as possible is passing from the receiver to the amp. This maximizes the signal-to-noise ratio, and leaves your system less prone to engine noise problems. Keep the volume setting here. Now turn the gain controls on the amplifier up until it's as loud as you'll play it. If you hear distortion, slightly decrease the gain settings. Now you've optimized the amp's output with the receiver's volume set near maximum. You can turn the volume almost all the way up and not damage your speakers or amplify distortion. If you're hooking up a subwoofer, a test disc (or bass-heavy CD) is helpful for making final adjustments.
2016-05-20 02:49:57 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Thats weird. My response to the guy above me
-Its a .5 farad capacitor, that should charge pretty past. (I have a 20 Farad and it only took a couple of minutes.)
-He said your amp can't handle it, well it sounds like you got a Lightning Audio kit, so I'm sure that Lightning Audio would have given you the right amp.
The only reason I can think of your amp turning off, or go into standy, is because its not getting the proper voltage. Get a voltmeter and check how many volts your battery has and also check how many your amp is getting. You might have to invest in a new battery but check the one you have first.
-Hope you get it to work man
2007-07-17 05:31:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
There are a lot of things that can cause this, but the most likely is a power/ground issue. This can be caused by a poor ground, a poor connection at the battery, a defective fuse, loose battery terminals, or corrosion at the battery terminals or fuse holder. The best way to test is with a digital multimeter, testing the voltage at various points along the power wiring.
2007-07-17 05:35:16 · answer #4 · answered by KaeZoo 7 · 1⤊ 0⤋
There could be all kinds of reasons why its shutting off.
Are you sure your equipment is hooked up correctly?
Correct ohms?
Is the capacitor charged correctly?
Sounds to me like your amp can't handle the speakers?
Good Luck.
2007-07-17 05:15:24 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Guys i know this is an old question but my amp was shorted out and i fixed it:)
2016-01-22 08:29:43 · answer #6 · answered by alexander 1 · 0⤊ 0⤋
NOT ENOUGHT JUICE AND YOU MIGHT WANT TO ADJUST SOME OF THE AMPS EQUALIZER SO THAT YOU CAN TURN IT UP HIGHER
2007-07-17 05:14:19 · answer #7 · answered by Eddy361 3 · 1⤊ 0⤋
This is a great question, and one that has made me curious for many years.
2016-08-14 22:04:24 · answer #8 · answered by Anonymous · 0⤊ 0⤋