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Connect the sub woofer. If that doesn't work, try asking the question by giving some details and asking in the correct section.

Posted on Jul 12, 2013

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When the volume is low the subwoofer sounds good, but when you go up a little volume, the sound is more acute. I have two subwoofer 1000rms each, when use 500rms power aprox, it sound great, but when


If the sub doesn't appear to have any damage like broken surround or a torn spider then I would suspect the amp may be having problems. What impedance are the speakers, what impedance can the amp handle, how do you have it wired to the amp?

Feb 23, 2014 | Fusion FEW12PK Car Subwoofer

1 Answer

COBOLT PSW-100 SUBWOOFER not playing very loud


What amp/receiver are you using? Have you plugged the sub woofer cable to LFE output on the amp? Are you using the right subwoofer cable? Have you enabled the amp to use the subwoofer?

Dec 09, 2013 | Audio Players & Recorders

1 Answer

Amp is only driving the subwoofer when in low volume. If i raise the volume amp shuts down and only works again if i turn power completely off.


Hi, please do the checks at the following post and let me know if you have questions; http://www.fixya.com/support/r9389300-stereo_says_protect_or_clicks_off_when

Jun 04, 2011 | Alpine MRP-M500 Car Audio Amplifier

1 Answer

I installed a Pioneer DEH-P800PRS head unit and 4 Kenwood KFC-1662S speakers in my 2003 Dodge Dakota extended cab truck. I used a Kenwood KAC-5204 2 channel amp connected in parallel. Sounds good at lower...


Hello.... sorry to hear about your problem. Bass is the ultimate evil of coaxial speakers. You have a couple of options here, and this is just my professional opinion because I do not know what your lifestyle details, such as truck space needs, type of music you listen to, budget, etc. If you are looking for alot of bass, the best bet would be to use 2 external amplifiers, 1 for the interior speakers, and 1 for a subwoofer. You would then need to purchase an electronic crossover. With this setup, you can remove all of the low frequencies from the coaxial speakers and put them where they belong, with the sub. You will gain EXCEPTIONAL clarity and a very high volume before distortion level. Again it will depend on what your budget is and if you are willing to compromise on some cab space. The only other option you have at this point is if you are wanting to play your music at high volume levels, you will just need to reduce the bass level as you increase volume. I hope this has helped. Good luck with your venture!!

20 year car audio/video installer
Bay manager

Mar 16, 2011 | Pioneer Car Audio & Video

1 Answer

When my RCAs are hooked up to my amp, my subs start hitting without any volume turned on


1. Check Grounding system (Player and Power Amp).
2. Ensure your RCA cable is OK
3. You might adjust volume or bass volume on power amp to maximum, just set all to 50% while you are tuning.

Mar 28, 2010 | Kicker CVR12 Car Subwoofer

1 Answer

Subs hit without volume on


1. Check Grounding system (Player and Power Amp).
2. Ensure your RCA cable is OK
3. You might adjust volume or bass volume on power amp to maximum, just set all to 50% while you are tuning.
4. Check the speaker out cables might contact the ground/ chassis

Mar 28, 2010 | Kicker CompVR 05CVR84 Car Subwoofer

2 Answers

Subwoofer Turns Off when volume is turned up


check your earth from the amp i had same prob and the vibration broke earth connection once secured it was fine

Aug 24, 2009 | Pioneer TS-SWX310 Car Subwoofer

1 Answer

No response from subwoofer despite power.


How is the sub wired?
Are the gains up?
Have you searched for subwoofer volume settings in your headunit?

Jun 30, 2009 | Jl Audio 13W3v3-2 Car Subwoofer

1 Answer

Bass goes off when i turn up the volume


You need to install a heavier gauge wire to your amp and a capacitor. It works fine at low volumes because there is enough wattage from the battery to power the bass output of the amp but at higher volumes the amp does not have enough power.

Heavier gauge wire supplies more poer, and a capacitor stores a reserve of wattage for the amp to use so that it does not run out while blasting your tunes.

Jun 02, 2009 | Fusion FEW12PK Car Subwoofer

1 Answer

Trying to figure out what kind of amp i got amercian pro vs-3507?


The VS3507 Is a class D monoblock.
Your optimum wiring for this amplifier is a 2 Ohm load - so it produces its full potential power of 350W RMS.

To Achieve a 2 ohm load, the most common load is one of the following...
(1) Dual 4 Ohm Voicecoil Subwoofer Wired in Parallel.
(2) 4 Ohm Voicecoil Subwoofers wired in Parallel.
(1) Quad 2 Ohm Voicecoil Subwoofer wired in Parallel/Series.
(1) Single 2 Ohm voicecoil subwoofer.

American Pro VS3507 2000W Car Audio Monoblock Amplifier
American Pro VS3507 Monoblock Amplifier Details
  • Built-In Crossover
  • Variable High/Low Pass Filters
  • Phase Shift Control
  • Subsonic Filter
  • Bass Boost Control
  • Dancing Lights at the Rhythm of Music
  • Protection Circuits
  • Gold Plated Terminals
  • Power & Protection Circuit LED
  • 1 x 250 Watts RMS @ 4 Ohms
  • 1 x 350 Watts RMS @ 2 Ohms Thanks for using FixYa - A FixYa rating is appreciated!!

Jan 29, 2009 | American Pro Car Audio & Video

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