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Which terminals are + & -,its got 4 like a 2 channel amp but its not?

Want to be sure its right

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What is the model number?

Posted on Dec 12, 2014

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Right speaker terminal not working - tested out both speakers and they work fine when independently tested on the left speaker terminal. Sony MHC GX45 Shelf System, 2 speakers and 1 sub.


If the sound is also dead on that channel on a pair of headphones. Then you have probably lost the main power amp for that channel. To be certain. With you headphones on, slide or turn the balance control so you can only hear the faulty channel. With some music playing turn up the volume. If you can hear "faintly" music playing then the pre-amp is OK and the power amp has gone.
The power amp will be located on a heat sink. It will consist of 4 transistors (2 for each channel) or one big device (or two) (an IC). If it is transistors you only need to replace the two for the right channel.

Aug 31, 2013 | Sony COMPLETE PWB, MP-45 Shelf System

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CROWN CE1000- slips into fault immediately after connection


if ur output power amp is defective u will have that problem - meaning the moment u connect load across it it will go into circuit protection to limit/stop excessive output current. make sure the speaker terminals are connected to +/- output terminals. in bridge mode use only channel 1 and that too with 4 ohms speaker only otherwise amp will clip. considering all connections are okay if it still clips when speaker is connected, u have a faulty power amp section. this the way ur amp is designed

Apr 05, 2010 | Crown CE1000 2-Channel Amplifier

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Just wanted to know what switches ( which number's ) i push across on the back of my amp to bridge it so that i can get the full 2000 watts out of one channel..... my owners manual is missing so i cant...


just get positive terminal of the right channel and the positive terminal of the left channel. this is were u hooked up ur speaker. and thats is thats the bridge connection. u just mixed the L. & R. output of ur amp.

Dec 16, 2009 | Behringer EUROPOWER EP2500 Amplifier

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How to wire a sony xm-444 car audio amp so that it is a 2 channel 222w amp


Your amp is a four channel so you have 4 sets of speaker outputs. to bridge this amp to 2 channels is pretty simple, all your have to do is when connecting your speakers instead of using both +, and - from the same channel, use the + from the one channel, and the - from the adjacent channel. Do this for both speakers, if you'll notice you now have 2 empty - terminals and 2 empty + terminals, if so you did it right... Hope this helps, enjoy your amp.

Sep 17, 2009 | Sony XM-444 Car Audio Amplifier

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I need help installing a 4 Channel Power Acoustik Amplifier to Two Pioneer Subwoofers. I hooked up the power wire to the positive battery terminal in the engine compartment. I then cut the power wire and...


You are doing right on what you described. I really like to work with a clearly described what involved in an issue.

Now we have to use a Voltmeter to check if there is power to the amplifier. If there is power to the amplifier terminal, then the problem is at the amplifier, not the connection. Let check it out:

1- Turn on your Kenwood radio, make sure to hear sound from your regular speakers.
2- Turn remote control knob to the mid level between min and max.
3- Measure the blue wire where you spliced to ground to see if you have 12V, if it is not then the problem is right there.
4- Measure the Red wire power from the Amplifier to ground ( the bolt that you connect the negative power to see if there is 12V, if not trace back to the Fuse that you inserted between the positive terminal of the battery and the wire going through the firewall to correct it.
5- If you have 12V at step 3 and 4, then you have a defect unit, return it to the manufacturer for a replacement.

Sep 06, 2009 | Car Audio & Video

1 Answer

4 chanel amp I dont know how to conected,to radioand one subwoofer


Hello canelo63,

Your question appears under the product listing for the Dual XPA4100 but the in the text you say the amp is actually a Jensen, so it's not possible to provide specific connection information.

But most bridgeable amps can be connected to a single subwoofer and the other two channels used to drive a set of regular speakers. I'd connect the front speakers to channels 1 and 2 and wire the subwoofer to the bridge connections of channels 3 and 4. On the XPA4100, the bridge terminals are the first (negative) terminal on channel 4 and the last (positive) terminal on channel 3.

Hope this helps.

Jun 01, 2009 | Dual 2-Channel Bridgeable MOSFET Amplifier...

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Amplifier main channel non operational.


first pull out the power transistor then biased the output terminal. base,emitter have dc volts .4 to .5 collector to emitter have full voltage. if this voltage are in ur pre amp buy new trasistor

Sep 09, 2008 | Audio Players & Recorders

1 Answer

How can i get a 2ohm load outta 2 4ohm dvc subs can you show me how to wire the amp as well it says on the amp its 2ohm stable


A normal wiring setup to produce a 4-ohm load is what you usually see - each speaker is wired to one channel of the amp. This is series wiring. To get a 2-ohm load, you need to wire in parallel. Here's how:

Take sub A and wire the positive terminal to the positive terminal of channel 1 on the amp. Wire the negative terminal of sub A to the negative terminal of channel 2 on the amp. For sub B, it's the opposite - positive terminal of sub B to the positive terminal of channel 2, and the negative to the negative terminal of channel 1. That's parallel wiring, and will produce the 2-ohm loading (and subsequent increase in output) that you're seeking.

Aug 28, 2008 | Jl Audio Car Audio & Video

1 Answer

On lucent amps you sometimes have to bridge two terminals together to make it work. i need to know what two need to be bridged.


I'm not sure if Lucent has a special bridging procedure, but on most if not all other amps, when you bridge you DON'T connect two terminals together. What you do is instead of using the plus and minus terminals on one channel to one speaker and the other +/- terminals to the other speaker, you will instead use the plus (+) terminal from one channel and the minus (-) terminal from the other channel to drive one speaker and the remaining + and - terminals remain unconnected. Be sure you use the + and - terminals that are marked for bridging. Please note, that when you bridge that your speaker load DOUBLES to EACH channel. In other words, what your amp saw as a 4 ohm speaker going to one channel alone, it now sees as a 2 ohm speaker on each channel when bridged. Be sure you know what you are doing before you bridge and fry your amp. In my experience, if after bridging your amp works fine for about a month and then fries then you bridged wrong and ended up with the wrong speaker load on each of the bridged channels. Be careful. Amps cost a lot to repair. Good luck.

Jun 02, 2008 | Audio Players & Recorders

1 Answer

Sound


Hi monmax,
I hope you are aware that in bridged mode your amp will become monaural (single channel, double power). If you still wish to bridge it:
Switch of power.
Set mode switch behind amp to "bridge" position.
Connect speaker positive to CH1+ve terminal of amp output and connect speaker negative to CH2 +ve terminal.
Be aware that now, in bridged mode your amps output power delivery is 1100 watts for a 4 ohm speaker and 900 watts for an 8 ohm speaker. Make sure your speaker can handle that.
Peace
Jango.

Mar 03, 2008 | Crown CE1000 2-Channel Amplifier

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