Question about Jl Audio Slash v2 500/1v2 Car Audio Amplifier

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Amp not putting out on speaker end

A friend gave me an amp to look over and it is not putting out signal to the speakers. are there schematics available? its a JL Audio 500/1v2

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Might be blown transistors.

Posted on Apr 24, 2009

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The audio amplifier IC´s maybe are fried

Posted on Nov 28, 2008

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Posted on Jan 02, 2017

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My samson servo 300's sound keeps cutting out, want to spray some electronic cleaner but not sure where ?


Yes; It maybe the protection coming on and off. This means there is a short in a speaker wire , or a blown speaker. The amp has 2 options for speaker hook up.1/4" plug and direct wire. If you are using direct wire it is possible to have frayed ends hanging around and can cause a short. You can test the speakers by unplugging them at the speaker, before you turn on the amp. Then turn it on, if the clicking still persist's turn off the amp and disconnect the speaker wires from the amp . Turn the amp back on. If the clicking still persists there is an internal problem with the amp. If not then you defiantly have either a wiring or speaker problem . You can test the speakers by using a 9v battery . Hook up the speaker wire to the speaker and put the battery on the other end of the wire, you should hear the speaker pop and see it move.If it moves it is still good. Note* this is also a good method of making sure your speakers are in phase. The battery is marked + & - the speaker will move forward when + is applied to the + of the speaker. make note of which wire is the +. if you get one speaker backwards it will cancel the sound of the bass. so hook the + to the red on the amp. Hope this helps you

Apr 26, 2012 | Samson Servo 300 2-Channel Amplifier

1 Answer

A friend recently gave me a Pioneer deh-p5750mp car stereo cd player and I'm having trouble installing it. I have successfully managed to connect the positive, earth and constant power wires and...


One thing to remember about most radios, the RCA pre amp circuit will still work even if the mosfet power amp inside the radio does not. The best way to know if the amp inside the radio works is to use one matching color pair coming off the radio to wire up a random speaker right to the radio. You can use just about any old random 4 ohm speaker that is laying around to check it. The best solution if the amp inside the radio is blown is to replace the radio or amp the pre amp outputs with a small 4 channel amp. Oh, by the way. What vehicle are you connecting this into? And does the vehicle say Bose, Infinity, or ect sound or Premium sound? These usually denote a factory amplifyer already onboard and requires special connections to get the signal to these amps to then be delivered to the speakers.

Sep 12, 2011 | Car Audio & Video

1 Answer

Speakers wont work. The friend who gave me the spealers had them installed on a Gateway. I'm usinf an HP 7360n


make sure you are using analog cable, not digital. analog has headphones male jack on both ends, digital has headphones jack on one, and rca jack on other end

Sep 01, 2011 | Boston Acoustics BA735 Computer Speakers

2 Answers

Sub12 Venue making clicking and loud noises


I would normally ask here "with or without signal going into it"

If it's making noises with no signal, the amplifier needs servicing

if it's when there is signal present, it could be the amp OR the speaker itself.

The speaker of course can be replaced with almost any 12" woofer of the same handling capacity.

Again, if it's the amp, the amp will need to be serviced.

To find out which is the issue in scenario 2, unscrew and remove the woofer and temporarily connect another speaker, putting a low to moderate signal (careful you don't blow the speaker you have temporarily connected).
If you get the same clicking/noises etc. then the amp is the fault. If not, the speaker is the fault.

Feb 26, 2011 | JBL Venue SUB12 Subwoofer

1 Answer

How do you connect the amp with the stereo


  • Choose where to put your new amp. If you are installing subwoofers it's usually best to put the amplifier in the trunk next to or attached to your subwoofer enclosure. If you are going to power your main car speakers with the amplifier then it may be better to put the amp under the passenger's seat.

  • 2

    Purchase the following wiring for the amp: A thick power cable (the thickness required depends on the total wattage of your amp, ask a sales rep or consult your amplifier's manual for the proper gauge) that will have to reach from your battery to the amp (the power cable should also have an inline fuse to protect the amplifier); 3 feet of ground cable of equal thickness as the power cable; an RCA signal cable to carry the left and right signals from your head unit to the amp; a "remote on" wire which can be any thin wire (20 to 24 gauge) that will also run from the head unit to the amp; speaker wire (if you are powering subwoofers you should only need about 3 feet of 12-gauge wire per sub, if you're going to power your main speakers you will need enough 16-gauge wire to reach each speaker from the amp, 12 feet per speaker is usually safe).

  • 3

    Gather the following tools: Screwdrivers, wire cutters, wire strippers, pliers, a utility knife, sandpaper, masking tape with a pen for labeling, 2 crimp-on o-ring ends for the power and ground cables. If you're hooking the amp to your speakers, you'll also need 2 crimp-on female spade connectors for each speaker.

  • 4

    Find a manual with instructions on taking off the dash of your car (not the whole dash--just the head unit, in order to hook wires to the back), and also to get at your car's speakers if you are hooking the amp to them.
    The Installation

  • 1

    Disconnect the ground (negative) cable from your battery. Never work on the electrical system of your car with this connected.

  • 2

    Attach the side with the fuse of the thick positive (+/red) power cable to the connector on the positive terminal of your battery; the o-ring can be sandwiched in the bolt on the connector that connects your car to the battery. Now put the fuse in the fuse holder.

  • 3

    Run the power cable through the firewall of your car (there is usually an opening on the driver's side) and to your amplifier. If your amp is in the back it is usually best to run this wire under the plastic molding that goes along the bottom edge of your car. Be careful where you run the wire because the power cables should never be near the signal or speaker wires.

  • 4

    Find a metal bolt or screw on the metal of your car near the amp to connect the ground cable to. This should be as close to the amp as possible, never more than 3 feet. Unscrew it and clean the metal surface with sandpaper. Attach the ground to it with the o-ring and screw it back down firmly.

  • 5

    Remove your head unit and run the signal and remote on wires from behind the head unit to your amp. Connect the RCA connectors and the remote on wire to the back of your head unit.

  • 6

    (If you are installing subwoofers and not running your normal speakers off the amplifier skip to step 7.) Run the 16-gauge wire from each one of your speakers to the amplifier. On the amp side use the masking tape to label each wire so you know which speaker it is. On the speaker end-strip a 1/4 inch off the ends of the wires and crimp on the female spade connectors with your pliers. Connect the spade connectors to your speakers making sure to match the positive (+/red or white) with the positive terminal and the negative (-/black) with the negative one.

  • 7

    Connect everything to your amplifier. Only strip off as much as you need off the end of each wire to make a solid connection, you don't want any exposed wire hanging out. If you have subs, attach them to the amp with the 12-gauge speaker wire.

  • 8

    Secure your amp to something. If it is in the back you can screw it directly to your subwoofer enclosure. If it is under a seat you may just want to get some straps that hold it down.

  • 9

    Reconnect your car's negative cable to the battery. Test your system and make sure everything works, going around to see that every speaker is on before you put everything back together

  • Feb 17, 2011 | Car Audio & Video

    1 Answer

    I have a Phoenix Gold Octane Amp and 10d subwoofers. My friend took it out last week, and I want to put it back it, but I can't figure out where the power and ground wires go and where the speaker wire...


    Ok, when you look at the amp, the power + and ground - will be on one side of the amp with another smaller opening in between them. That opening is for your remote wire from your radio. Without that, your amp will not receive the input voltage to signal it to turn on. The speakers will go into the remaining open holes. Your RCA wires will be on the opposite end of the amp.

    Apr 29, 2010 | Phoenix Gold Octane-R 10/10d Car Subwoofer

    2 Answers

    Bridging issues


    There's no signal on the L- and R+ terminals.

    If you're going to bridge both speakers on the amp, each speaker must have an impedance of 8 ohms (or more). If you're unsure of the impedance of the speakers, connect one speaker to each channel.

    Let me know if you have any other questions.

    Sep 19, 2008 | Kenwood KAC-6202 Car Audio Amplifier

    1 Answer

    No wiring harness, can i use the amp w/out it?


    ?????need more understanding of what you mean.

    May 16, 2007 | Jensen XA92 Car Audio Amplifier

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