Question about Logic Soundlab PLX-520 Car Audio Amplifier

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Car audio My amp is a "Logic soundlab PLX52" and I can't find it any where on the web. Is it the PLX500 cause thats as close as I can find. Can I search using serial # i've got it?

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    How to resset a logic soundlab car stereo


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Product Details and Features PLX-520
Key Features
Amplifier Type Car audio - grayquestion.gif Dual Channel Bridgable Bridgable RMS Power at 2 Ohms 400 W x 2
Frequency Response 10 Hz - 50000 Hz Signal to Noise Ratio grayquestion.gif 102 dB THD at Rated RMS Power 0.01 %
Crossover / Equalizer
Bass Boost grayquestion.gif With Bass Boost Low - Pass Frequency 50 Hz - 120 Hz High - Pass Frequency 80 Hz - 800 Hz
Other Features
MOSFET Circuitry Yes 3 Way Ready Yes
Width 10.4 in. Depth 17.7 in. Height 2 in. ..This is what I found for logic soundlab PLX-520 Amplifier, hope its what you were looking for. Don't forget to rate answers.

Posted on Mar 31, 2008

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1 Answer

My logic amp for my subwoofer over heats

Here are some reasons that can cause your amplifier to overheat:
  • Amp Gains are set to high / Clipping occurs
  • Amp is not stable at the ILP (Impedance Load Presented)
  • Amp is placed in a poorly vented area
  • Amp is a POS or is defective.

All amp's are typically warn, but they should not burn to the touch, that is too hot.

Mar 24, 2011 | Logic Soundlab Car Audio & Video

1 Answer

I have a brand new logic soundlab tx1002. it was hooked to a brand new radio and new speakers. When turned on, it is in protection mode. you get a popping sound from the speakers. we have checked all...

first disconnect one wire at a time, making sure the power is off. then connect power and check to see if your speakers are making the popping sound. when you do your speakers, make sure you disconnect both positive and negitive of each speaker at one time. when your amp goes out of protect mode you will have found your suspect wire. then trace to the issue. it could be as simple as crossed over possitive and negitive wires

Jan 11, 2011 | Logic Soundlab LSX2600 Car Audio Amplifier

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What is the hi input for

Hi input is for smaller speakers...not subs....

Oct 05, 2010 | Logic Soundlab ALX280 Car Audio Amplifier

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Logic soundlab plx 46 red led lit in center of board what does it mean?

does it have sound if not it may be on a protect or themal mode try taking our=t your main fuse when the system is in and put it back in

Dec 17, 2009 | Logic Soundlab PLX-520 Car Audio Amplifier

1 Answer

The low input plug on my logic soundlab cpx1820 is broken.

Hello lucky33irish,

If it is just the plug that is broken, it's a rather easy fix. Just solder on a new plug. Look closely at the old one to make sure that you match up the wires correctly. You can get replacement plugs at Radio Shack or try this web site. I like the Switchcraft 3502. It's very durable and easy to work with.

A better fix would be to replace the cables with a new set of RCA's.

If the pin from the old plug is broken off inside the jack, you'll need to remove it. I usually start with a scratch awl and gently pry the old pin backwards until I can get ahold of it with a pair of needle nose pliers. Just be careful that you don't push it in deeper.

Anyway, hope this helps.

Apr 02, 2009 | Logic Soundlab CPX1820 Car Audio Amplifier

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Temperature issue

Class B and class AB amplifiers will run at high temperatures when they are driven hard or when they are driving too low of an ohm load. If you have the correct ohm load and the amp only runs hot when driving it hard, it's probably OK.

Let me know if you have any other questions.

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Amp fuse

There are two 40 amp fuses in the unit I have.

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Logic alx1280 2 ch amp

Amps can be rated based on their RMS power or their peak power. In this case, the amp's rated RMS power is 300x2 at 2 ohms (total 600W RMS) with a peak power rating of 600x2 (1200W peak). For the most part, peak power means almost nothing.

If your head unit didn't have RCA preamp outputs, you would used the standard speaker outputs from the head unit and connect them to the hi input plug of the amp.

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Amp go's into protection

bad ground make sure you have a really good ground

Feb 07, 2008 | Logic Soundlab CPX1820 Car Audio Amplifier

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