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Car stereos I am getting power to my high-flow capacitor and my amp, but my sub-woofer is not working

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  • treydew Mar 10, 2008

    all the wires are connected correctly



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Check the cvonnections to your sub woofer to nsure there all conected correctly

Posted on Mar 10, 2008


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How can I connect a subwoofer to this device (denon pma-520)

Look around for a subwoofer which has speaker level inputs.
Something like this;

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1000 watt 2-channel Pyle PDGA240 Gear X Series

Make sure that the gain setting on the amp is turned up high enough on the sub's amp.

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Can I connect two Sub-woofer speaker to my car CD receiver Model No.DEH-P4950MP without using Power Amp ? because I really don't need very high Audio sound volume but I need to hear all Audio...

head units do not provide enough power to run subwoofers. instead, get yourself some new door speakers, and enjoy the difference. if not, you will need an amp to power the subs.

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I need a wiring diagram from car stereo to 2 x 6 " x 9 " and a sub woofer please

You can connect the two 6x9 speakers to the two individual left and right outputs of the car stereo.
Connect each of the left and right channel with the correct polarity . Now the Sub-woofer requires an amplifier to be connected separately and so you need to use the car stereo to be linked to a sub woofer amp which powers the sub woofer.

Mar 26, 2011 | Car Audio & Video

1 Answer

How it can be connected to a stereo amp

if ur amplifier have a pre out, then u can connect that to ur L/R input of ur sub woofer.

if not the only way is, connect ur amplifiers speaker output to sub woofers speaker input and then connect ur speaker to sub woofer speaker output terminal. remember don't inter change positive and negative wires.

if ur amplifier have speaker A,B connection then it is very easy. connect the speaker A to ur left and right speaker. then connect speaker B to ur sub woofer's left and right speaker input. be sure to make that speaker A and B switch is in on position. the power on both and check it. ( use good quality speaker cable to connect the sub woofer)

your sub woofer is designed to work , both at low level and high level input.

Dec 17, 2010 | Yamaha YST-SW215 Subwoofer

1 Answer

Can I hook up a 1200Watt sub-woofer to a 1500watt amp?

Yes you can. Rule of thumb for sub and amp is that power should be balanced but the amp should have more power than the sub. You probably will need a capacitor for storing power and won't drain the car battery. For the future I would also look in to getting a bigger alternator and a separate battery.

Sep 20, 2010 | Car Audio & Video

2 Answers

It gets hot

What you need to check is the impedance that you are connecting at. If you are using for sub woofers... you need to check how you wire them up. If you are using bridge mode then make sure that you have a 4 ohm load. This is possible with a single coil woofer which has an impedance of 4 ohm.

If you have a single dvc woofer, then you would have to either wire it up in stereo with a 4 ohm coil to each channel. If you would like to run it in brifge mode then you would have to invest in a single dual 2 ohm sub woofer and connect it with the coils in series thus obtaining a 4 ohm load.

If you have multiple woofers then it becomes more tricky. You can use a channel amp in bridge mode by getting 2 dual 4 ohm dvc woofers. You would have to connect the woofers themselves in parrallel but to the amplifier, you MUST have the woofers in series with each other. Thus getting a 4 ohm bridged load on the amplifier.

Connecting this amplifier any other way can cause it to overheat and fail.

hope this helps you

Nov 06, 2009 | Power Acoustik LT-980/2 Car Audio...

1 Answer

How to wire a sony 1200 watt amp

I believe what your trying to do is to run 2 12" subs and some other satillite speakers? We used to do that all the time.. That is called running the amp in "mixed mono" that's where the mids & tweets are run in stereo while the subs are bridged mono. This configuration is what made Rockford Fosgate "The Bomb" back in the day. To do what you want your subs have got to be 8 ohms, NOT 4, Dual Voice Coil 4 ohms would be OK. Before i tell you how it can be done let me tell you what will happen... For one thing you will be "making" your own cross overs for the subs and mids and tweets. Forget about using the cross overs on the amp. 2ndly you will lose about 1/3 to 1/2 of the amps power because the crossovers are so inefficient, so don't even think your going to get anywhere near 1200 watts from the amp. More like 300, and that's on a good day. But if you still want to do it you go to your Radio Shack and get 1ea 6.0 mHy (milhenry) coil and two 47 mfd (microfared) capacitors, or something close to that value. So you would wire your mids & tweets normal in stereo and on the + line to each mid wire in the 47 mfd capacitor. That is your h/p crossover which will crossover your mids @ appx 130hz. Now on your subs. You want to wire them in parellel (both +s twisted together and both -s twisted together so it looks like there is just one woofer with a + and a -) Than from the L+ of the amp run a wire to the coil and from the coil to the + of the woofers, than using the R- of the amp to the -s of the woofers. Do not use any of the amps built in crossovers leave it on full. Good luck. Mark @ Sounds Good to Me Tempe, AZ

Aug 25, 2009 | Car Audio & Video

2 Answers

Amp not functioning right

Check the wires for a lose connection or corrosion. You may need a capacitor.

Basically, at low power the amplifier is not asking for a lot of power from the electrical system to power your sub woofer. For lack of a better term and probably the best way to explain it is. It uses up all the power in the wires leading to it at a high volume, and has to wait for more. Kind of like when someone squeezes a garden hose2_bing.gif when your trying to use it. That would be the high volume, starving the amplifier. The capacitor stores power in it to power the amp at high volume. 2 farads would probably be bulletproof on a single amplifier system, but 1 farad should work well enough. Or seek help from an expert on exactly what size capacitor you should use. If you find yourself saying: My amp cuts out.

If this assisted in solving your problem, please take the time to rate it. Thank you.

Oct 08, 2008 | Jl Audio 500/1 Car Audio Amplifier

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