Question about Pyramid PB536GX Car Audio Amplifier

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Internal output I've been having problems with blown fuses on the amp. It is bridged from another amp and connected to a 600w sub. The amp is lighting up but the power and protection lights will not come on. Plus when installing a fuse, it blows on contact. I have been told that it could be the "internal output" of the amp. Is there any way that I can repair this myself?

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Re: internal output

Unless you have experiance with repairing circutry you will probably do more harm than good. The board is sensitive to heat and could easily be damaged further.

Posted on Mar 29, 2007

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How to fix blown sub (replace fuses etc)...? stop protective light illuminitating?

The first thing to try is to disconnect the sub and all speakers from the amp's output block. The only things that you need connected to the amp are the 12V power, the ground wire, and the remote wire to turn it on. If the protection light comes on with only these three wires connected - your amp has been damaged internally and will either need to be repaired or replaced.

Jul 27, 2013 | Car Amplifiers

2 Answers

Amp quit producing output, power indicator is on

it can't be a fuse cause if it was then there would be no power you might have blown the speaker terminals. did you check to see if the sub was blown.

Jul 28, 2010 | Rockford Fosgate Car Amplifiers

1 Answer

Have 600w amp 2 10's and they aint even bumpin, DO I NEED TO BRIDGE IT

No, that'll use two channels to power one sub. First, is the gain turned up? There's a knob on the amp to turn it up. If the gain is already up, and if the amp is two-ohm stable, then wire the subs in parallel. I'm assuming the subs are each hooked up to their own individual channel. Swap the two negative wires at the amp, so sub 1 is hooked up to channel 1 positive and channel 2 negative, and vice versa for the other sub. That'll dramatically increase the output. Again, make sure the amp documentation says it is 2-ohm stable, or you'll damage your system.

Dec 24, 2009 | Kenwood KAC-729S Car Audio Amplifier

1 Answer

Bridging outputs on JBL BP300

Hello paulnkate,

The BP300.1 is a mono (1 channel) amp. You cannot bridge a mono amp. Bridging is a method of combining the outputs of 2 or more channels of a multichannel amp into a single mono load. On your amp you would connect a single sub to one of the +'s and one of the -'s (either one is OK, they are connected internally). The other pair of terminals is just for convenience, making it easier to connect, if you want to power 2 subs.

Hope this helps.

Jul 20, 2009 | JBL BP300.1 PowerValve Series Car Audio...

2 Answers

When i turn the volume up high enough one or both fuses on the amp will blow.

This most likely means your amp is blown. All you can do is make sure your battery and ground wires are tight. Also double check to make sure + and - Speaker terminals are going to proper terminals on amplifier. Thanks

Jun 08, 2009 | Pioneer GM-5100T Car Audio Amplifier

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How many speakers can I use?

This should work if channel 3 & 4 are bridged at 4 ohm.
channel 1 should be stable at 2ohm
channel 2 should be stable at 2 ohm
You can hook up the right side speakers together ( + with + and - with - ) . same thing with the left side. this will give you 2 ohm each channel. this will cause your amp to run hot (this might be tuff on the amp). It will give you right (2 speakers) and left ( 2 speakers ), no front and rear adjustement if you need to balance your sound. I think you should be better buying another amp for your sub and take your 4 channels for your 4 car speakers. this amp as a rca output that can feed the other amp ( sub amp ). it is possible to do it.

Good luck

Nov 11, 2008 | Alpine MRP-F250 Car Audio Amplifier

1 Answer

Amp Issues

1) Make sure a bridged load of no less than 4 ohms is applied.
2) make sure both the left & right channels are working.

Jan 29, 2008 | Rockford Fosgate Punch P2002 Car Audio...

1 Answer


Hi Trim God,


I do not reccommend that you push the Pioneer speakers over 100 watts.  The jenson will already drown the car with bass through your pioneers so much you will want to turn off the bass boost when playing some low bass hip hop songs. It changes from one venue of song to another, so I just keep the jenson bass boost off and use my head unit to adjsut the sound to fit my listening prefences. I am telling you man, you will be blown away .  Hook up the pioneers straight to the Channels,. do not bridge.  I put Subs in my truck though.  I used the Pass output to send the audio to me Jenson 2 Channel 600W amp. I drive one 10 inch enclosed JBL Class A/B Sub. I bridged the output of the 600 W amp to the 10 inch sub  in my Z28.  The pioneers never get drowned out.  I did smoke my 2 channel Amp one time. and also took out a MTD 10inch sub. I am talk shooting flames and smoked the whole car up. I think if you bride the XA4150 to the pioneers, you will have the flaming smoke problem in no time.  

Oct 02, 2007 | Jensen XA4150 Car Audio Amplifier

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Amp Problems

You are probably presenting too low an impedance load to the amplifier. In bridged mode the amp must be connected to a minimum 4-ohm load. If your subwoofer is a dual voice coil type with 4-ohm voice coils, you cannot wire the voice coils in parallel and connect it to the bridged amplifier. If you have a sub with dual 2-ohm voice coils, you can wire the voice coils in series and connect it to the amplifier in bridged mode. To connect voice coils in series: Connect a wire from the negative terminal of one coil to the positive terminal on the other coil. Connect the unused positive and negative terminals to the amplifier's output.

Mar 14, 2007 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

P3001 amp may be fried

Check this out:

Aug 06, 2006 | Rockford Fosgate P3001 Car Audio Amplifier

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