Question about Legacy 2 CH 1800W RED AMP Car Audio Amplifier

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Amp is on but nothing coming out of Sub

My amp says that there is power coming through, but my bas boost says that there is no power. My sub does not make any sound either, but i tried my old amp and that works but it is not as powerful as this one. What do you think is the problem and how can i slove the problem?

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Re: Amp is on but nothing coming out of Sub

If one amp works inthe same place same wiring same hookup, and the other one dosent, It got to be a bad amp or the way its being hooked up. Make sure the standby is hooked up properly. Get the wiring diagram for instalation for both amps and look at them side by side. If the dead amp is supose to work then Im sure by comparing hookup your gonna say "AAAWWWWW I See Now!!" Good Luck

Posted on Jun 23, 2006

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I have a ph30.2 power plate. I want to know how to install it right

1.Cut the appropriate size hole.
2. be sure the amp supports your sub with the proper impedance.
3.wire the plate to the sub
4. apply sealant to the plate where it touches the box. sealant, not glue.
5. connect you plate amp to power socket.
6. setup your preferences with the knobs on the plate amp, sub sonic, LPF, boost, gain etc.
check for leaks and fix them.

Nov 09, 2013 | Car Amplifiers

1 Answer

I have 2 12in kenwoods and a 1200 watt pyrimade amp, how can i hook these up to be the loudest

1st have your subs facing inwards towards the front of the car, not facing out the boot, This creates a better bass.

Wire 1 sub to one channel and the other sub to the other channel.

Turn down your gain as low as possible and then power everything up.

turn volume to desired loudness and then start turning up the gain slowly, if distorts a little turn in back down a notch.

avoid using bass boost, I agree it sounds great but it puts more strain on your amp and shortens its life.

after sorting out your gain, tweak all others until sound is bassy and clear with no distortion.

If you would like to use bass boost, turn on bass boost first, then up your gain etc.

Jan 16, 2013 | Pyramid PB915X 1200 Watts 2 Channel...

1 Answer

I have just bought a soundstream pca1000d amp friend but he did not have the remote bass nob so I was wondering where I could get it from

the bas control nob is just a grimack end a waste of money,You don,t need it because all the decks in the last 8 years have,Sub level control on them, Where you can adjust the level of bas from the (Deck) All your asking for to happen, Buy all so useing the bas control for the amp, Is to (Blow) Your (Subs) End fry your amp, When you use both of them for controling the bass, You are causeing the sub end the amp to over heat, I installed car audio for over 40 years , before i retired this summer, End seen lots of amps end subs that were damage, Buy guys haveing them hookup all so,End anouther thing that damage subs end amps, When they have the grain control on the amp crank right up.

Nov 07, 2012 | Car Amplifiers

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Can i use my jensen jxp340 amp with my one 800watt 12" 4 ohm subwoofer?

Yes, technically you can, however you will be putting both your sub and your amp at risk. One of the worst things you can do to a sub is underpower it. The easiest way to explain it is n ot giving enough power to the sub leaves it starving for power. The motor structure ends up working too hard to try and move the cone properly and what happens is the sub will usually seize up rather than blowing out in the term you usually hear (ie, I had my system cranked up and I blew my subwoofer).

Secondly, in an attempt to get any real sound out of the under powered sub, you'll probably end up cranking the gain and bass boost on the amp which ends up overworking the amplifier quite a bit and can in turn lead to fried out amp chips, burnt up circuit boards etc.

Thirdly, by maxing the gain bass boost you're going to end sending a lot of distortion through your subwoofer in an attempt to get some decent bass. Distortion kills both subwoofers and speakers alike.

So to answer your question, yes you can hook up your subwoofer to that amp and yes, it will probably play for a while but I wouldn't recommend it. Look for a class d or mono block amp to push your sub as these will give you the most power and best heat dissipation. They are designed to push subwoofers specifically and you will get better sound and longer life out of your equipment. A good rule of thumb is look for an amp within 100-150 watts of both your RMS power handling and your Peak power. Remember, when it doubt, always go a little bigger on the amp side of the spectrum. It's easy to "tune down" an amp by having the gain and bass boost at a lower level (50%, 25% etc), than to turn 'em all the way up just to get some bass and end up prematurely blowing out your sub, amp or even worse, both.

Dec 01, 2010 | Jensen JXP340 Car Audio Amplifier

1 Answer

Just woundering if i could bridge one sub to front and one to rear the subs are kenwood w3514 dvc subs the amp is kenwood kac-x501f

Hello bigmac208,

Yes, that would be the best connection for both the subs and the amp.

I'd wire the sub voice coils in series since the amp will not be stable at 2 ohms when the channels are bridged. The power will be somewhere between 100-200 watts RMS to each sub. While it's not pavement pounding, it should provide pretty good bass, especially if you tweak the crossover and boost settings for best bass response.

Hope this helps.

Aug 28, 2009 | Kenwood KAC-X501F Car Audio Amplifier

1 Answer

Poor sound/ Unable to play anything load without distortion.

i can tell you right now base on the vehicle you have a bad system hook wosrt if you are using factory head unit

Mar 25, 2009 | Kenwood KAC-8151D Car Audio Amplifier

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Adjusting wattage on kenwood kac 9103 class D mono amp

That amplifier is 900W x 1 @ 2ohms.
If your subs are 4ohm SVC wired Parallel, resulting in a 2 ohm load, each sub will only see 1/2 of the rated power. (450W ea.)
Your gain (sensitivity) setting should be between 75% and 85% to max. You will be fine.

Jan 02, 2009 | Kenwood KAC-9103D Car Audio Amplifier

3 Answers

Kenwood kac9152d bridge mono wiring diagram

only using one of the channels for audio and having the rest of the amp wired up as normal should work fine. for example just use the right channel and leave the left unwired.

Dec 27, 2008 | Kenwood KAC-9152D Car Audio Amplifier

3 Answers

Sony 1200 watt amp

What kind of deck to you have? Sometimes there's a setting for the subwoofer output that has to be turned on. How is the deck hooked up to the amp? Be sure of the normal things: -Make sure the sub is connected in side it's box -Make sure the RCA cables didn't come off the deck -Check every connection! Let me know and be sure to leave feedback or I don't get paid.

Oct 03, 2007 | Sony XM-2002GTR Car Audio Amplifier

1 Answer

How should I wire up this amp and sub

The amp's not actually a very good match for the sub, since the sub can be wired for 2 ohms or 8 ohms, and the amplifier is most efficient at 4 ohms in bridged mode. My advice would be to wire the amp in bridged mode, and wire the sub for an 8 ohm load. To do this, the amp's (+) wire should go to the (+) terminal on one of the sub's voice coils. Then run a wire from the (-) terminal on the OTHER voice coil to the (-) terminal on the amp. The remaining (+) and (-) terminals (on opposite voice coils) should be connected to each other with a wire. Your original wiring setup had the amplifier connected to only one voice coil, while the other voice coil was shorted.

Jun 10, 2007 | Kole audio Q2-480 Car Audio Amplifier

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