Question about Jl Audio 500/1 Car Audio Amplifier

3 Answers

Rca Connection yeah on my 500/1 i think there is a problem with the Rca connections the green light turns on and it plays some songs normal and other songs it wont pick up the deep bass notes its like it just shuts off i can here music coming from my sub but no bass,Do you think you could help me with this. Thanks,Tim

Posted by on

  • 2 more comments 
  • AudioFreak Jun 07, 2008

    i think the sub is fine its a 4ohm DVC and it wired down to 2ohms is there anything else it could be?

  • AudioFreak Jun 07, 2008

    i have a wierd problem with my 500/1 when i put just 1 of the rca cables in to the +positive connection it plays the song great but when i put both in there isnt any bass and also sometimes it play a song and sometimes it doesnt.I really dont know what is going on i have owned several amps and never had this problem.But this is my first JL Audio amp tell me its just me and not the amp.

    Thanks

  • AudioFreak Jun 07, 2008

    Yeah the songs are louder thats probably whats wrong how do i fix this problem.Also
    it only plays songs with one rca connected
    and thats on the positve side.

  • AudioFreak Jun 07, 2008

    KnuKocepts Kollosus Flex 8awg with 1 midi anl fuse holder 50amp fuse about 6 inches from the amp and another anl midi 50 amp fuse
    near the battery.

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 2,035 Answers

When it comes to installation considerations, it’s damn hard to find anything about the 500/1 to not like. For a start, there are the chassis-mounted RCA connections. By comparison, the input connectors on most amps are unimaginably flimsy. The preamp section of the 500/1 is also quite impressive. Much like the 300/4 that we reviewed a few issues back, its flexibility and degree of control are head and shoulders above anything else that I’ve seen in an automotive amplifier. Among my favorite features are the detented frequency controls found on the crossovers, bass boost, and infrasonic filter. Rather than continuously variable pots, these controls utilize stepped adjustments and the owner’s manual lists the exact frequency at each click. The parametric bass boost is another very cool gadget. The center frequency adjustment covers a wide and sensible range of 20 Hz to 80 Hz, the bandwidth adjustment (Q) ranges from very narrow to ridiculously wide and the circuit can be completely bypassed if you so desire. Equally impressive (in a test-bench-geek kinda way), is that the circuit doesn’t effect the amp’s response at all if the boost knob is dialed to 0 dB. All of the amp’s filters are similarly well behaved. The infrasonic filter covers a far wider range than typical, so wide in fact, that it overlaps the lower half of the crossover’s range. It’s possible to nearly eliminate all output from the amp by misusing these controls. How’s that for flexibility?
On top of all that, you get a pair of buffered RCA outputs with an independent crossover with the same cool controls, a heat sink that’s more than just a heat storage device, and an amp that won’t quit no matter how heartlessly you drive it. The amp’s protection circuits cause it to reduce output rather than shut down completely.

Posted on Jun 07, 2008

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,037 Answers

With this amp, the amp’s protection circuits cause it to reduce output rather than shut down completely if it is about to overload. The songs it turns off on, are they much louder or would they draw more power? I think this may be your problem. Does this sound right to you?

Posted on Jun 07, 2008

  • 3 more comments 
  • Benjamin Patri
    Benjamin Patri Jun 07, 2008

    well, the protection circuits are protecting the unit from frying itself, so the only thing to really do to change this is to put a different set of protection circuits in or just bypass them completely but then this will void any warranty and could cause the device to fry. You may just not have enough power to run both cables, do both cables provide the right amount of sound when connected separately? If so, I think it may not be able to handle more than one or it needs more power.

  • Benjamin Patri
    Benjamin Patri Jun 07, 2008

    Perhaps the gauge of your wires needs to be changed otherwise, what are you using?

  • Benjamin Patri
    Benjamin Patri Jun 07, 2008

    Everything sounds fine with the system. How loud are you playing it? If anything, I would just give the manufacturer a call and see if they would suggest anything else but as far as I can see it is working like it should and you have everything hooked up fine. The gauge is a little more than what I would use but should be fine

  • Benjamin Patri
    Benjamin Patri Jun 10, 2008

    If you are satisfied with your experience here, then feel free to provide me with some feedback by
    rating my solution. If you need any more help, I would be glad to
    assist you, just ask.





    Thanks for your time and service and I hope you have a Great Day!

  • Benjamin Patri
    Benjamin Patri Jun 28, 2008

    If you are satisfied with your experience here, then feel
    free to provide me with some feedback by rating my solution. If you need any
    more help, I would be glad to assist you, just ask.



    Thanks for your time and service and I hope you have a Great Day!




×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 19,396 Answers

More then rca connection seems to be a problem with speakers

Posted on Jun 07, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why does my green power light blink and my amp not work


There are three status indicator lights on the top of the amplifier. These are as follows:
1) "Power" (Green): lights to indicate that the amplifier is turned on and operating normally.
2) "Thermal" (Red): lights to indicate that the amplifier has exceeded its safe operating temperature, putting the amplifier into a self-protection mode, which reduces the power output of the amplifier. The red light will shut off and the amplifier will return to normal, full-power operating mode if the heat sink temperature drops back to a safe level.
3) "Low ω" (Amber): lights to indicate that the impedance of the speaker load connected to the amplifier is lower than the optimum impedance load range for the amplifier. When this light is on, a protection circuit engages and reduces the power output of the amplifier. The amber indicator will also light when a short-circuit is detected in the speaker wiring (this can be a short between the positive and negative speaker wires or between either speaker wire and the vehicle chassis).


There is only one condition that will shut down an undamaged 500/1v2 completely... If battery voltage drops below 10 volts, the entire amplifier will shut itself off. The green "Power" indicator on the top of the amplifier will turn off when this occurs. The amplifier will turn back on when voltage climbs back above 10 volts. This may happen in a rapid cycle when bass-heavy program material causes a weak charging system to dip below 10 volts momentarily. If this is happening in your system, have your charging system inspected to make sure it is working properly.

If your amplifier is blinking Green, and no output is coming out of the speaker, you may have internal damage to your 500/1 Amp.

"My amplifier turns on, but there is no output"
  • Check the input signal using an AC voltmeter to measure the voltage from the source unit while an appropriate test tone is played through the source unit (disconnect the input cables from the amplifier prior to this test). The frequency used should be in the range that is to be amplified by the amplifier (example: 50 Hz for a sub bass application or 1 kHz for a full range / high-pass application). A steady, sufficient voltage (between 200mV and 8.0-volts) should be present at the output of the signal cables.
  • Check the output of the amplifier. Using the procedure explained in the previous check item (after plugging the input cables back into the amplifier) test for output at the speaker outputs of the amplifier. Unless you enjoy test tones at high levels, it is a good idea to remove the speaker wires from the amplifier while doing this. Turn the volume up approximately half way. 5V or more should be measured at the speaker outputs. This output level can vary greatly between amplifiers but it should not be in the millivolt range with the source unit at half volume. If you are reading sufficient voltage, check your speaker connections as explained below.
  • Check to ensure that the speaker wires are making a good connection with the metal inside the terminal block. The speaker wire connectors are designed to accept up to 8 AWG wire. Make sure to strip the wire to allow for a sufficient connection with the metal inside the terminal block.

For immediate assistance please call our Technical Support Department at 954-443-1100.
Otherwise, check this site out for Technical Assistance with your Amp:
http://mobile.jlaudio.com/support_pages.php?page_id=130

Here is your Manual:
http://mobile.jlaudio.com/pdfs/13320.pdf

May 25, 2011 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

My protection light flashes from green to red even while theres no speakers or rca wires connected


check how good your earth connection is, you may need to scrape of some paint beneath it to get a good connection, kicker amps draw a lot of power so good cable connections are a must. If the earth connection is clean, maybe try thicker cable to allow higher current.

May 05, 2011 | Kicker (ZX750.1) Car Audio Amplifier

1 Answer

My amp stopped workin, when i turn the stereo on, the green light is on, then when the music starts to play it turns red and stops working,


The red light on amplifier relates to power supply while the green light is indication of sound functionality. An amplifier that allows sound to generate should display both red and green lights. Howeever, some amplifiers would display only green as long as the sound is functioning.

Solving the problem

First, a red light still on means the power connections to the amplifier is fucntional least requirng repairs.

Second, the green ligh should turn on once the stereo were tuned up to produce sound. If the stereo is still on only least produce sound on the amplifier, check on the connection wires between stereo to amplifier that may have disconnected due to woofing or dubbing sound generals with unfirm wiring.

Third,

Jan 28, 2011 | JVC KS-AR7501D Car Amp

1 Answer

I have a jl 500.1 and a 8w7. The sub is playing but not really it will play sometimes but most of the time i am getting almost nothing. Am i using the wrong settings or a bad connection or blown sub?


Sounds like a bad rca connection. You need both rca jacks to be plugged in from your head unit, both left and right or you will not have full power you'll have half power to your sub/subs. Check your sub with a volt meter and see what it reads. Make sure if your head unit has a sub volume make sure it's turned up. Alot of people don't realize they have a seperate subwoofer volume on there deck and it's set to low, so check that. You could have bad rca cables. If all that is ruled out(best way by trying a different amp) the amp itself might be having problems. Don't think it would be in protect mode either.
Let me know if you have'nt allready.

Nov 14, 2010 | Jl Audio 500/1 Car Audio Amplifier

2 Answers

Im not sure if its my amp or my subwoofer but it will cut out when i play differnt songs?


Hello,

Can you be more specific, when you say that it cuts out while you play different songs ?

Does that mean any song cuts in and out...or only on some cd's ?

I'm thinking either your cd's are scratched...which is the easiest solution..The next one involves your amp.

Check and make sure the ground wire for the amp is properly grounded. This means the connection on the end of the ground wire is connected to your cars frame (bare metal) if it isn't then your amp will cut in and out hence your sub cutting in and out.

This is a very common problem and shouldn't be hard to fix. Just make sure the end is secure.

Post back if you have any further question's or comments. Thank you for choosing Fixya!

Nov 11, 2009 | Rockford Fosgate Car Amplifiers

1 Answer

No sound


unplug spkr from amp and leave rca and turn if this dont happen again check you spk
if it does happen again unplug rca and turn on and if this happen your amp may be bad

May 17, 2009 | SPL Audio Phantom DK2-1000 Car Amp

2 Answers

Amp Turns on Fine, but no Sound


have you checked the levels on the ohms? adjust them higher if need be contact me on yahoo msgr if you need more assistance

jcbproducts-always forward

ym-jcbproducts

Nov 14, 2008 | American Pro VS-2043 Car Audio Amplifier

1 Answer

Rca Connection


You need to check the shield ground on the head unit. The following link will guide you through the test procedure.

Shield Ground Testing

Jun 07, 2008 | Jl Audio 500/1 Car Audio Amplifier

3 Answers

Kicker 750.1 Amp wont play music


it is probably the rca inputs on the amp may have fried. was your cd decked turned up loudly before the power went out? did any wires accidently touch each other? If had worked fine and then suddenly stopped, than either a wire came loose or the inputs fried. try using different cables and I also suggest disconnecting power for 24 hours and then reconnect. If the green light is on then it is getting power and the problem is in the rca cables or the inputs

Jun 03, 2008 | Kicker 06ZX750.1 Car Audio Amplifier

Not finding what you are looking for?
Jl Audio 500/1 Car Audio Amplifier Logo

96 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jl Audio Car Amplifiers Experts

matthew walsh

Level 1 Expert

69 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Matthew Spark
Matthew Spark

Level 3 Expert

1042 Answers

Are you a Jl Audio Car Amplifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...