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Bass level does not match volume level!! Please Help!!!

So I have a 10" infinity perfect powered by a fossgate p-500-2 (500wtt) amp and the bass stays at the same loudness regardless of if the sound volume is on 1 or 20. Also the amp does not turn of when the music is off (does when I turn the car off however). Any help would be great! Thanks for your time.

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  • johntekin Dec 24, 2007 do I fix it???



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That should be the wiring mistake

Posted on Dec 24, 2007


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1 Answer

Bass level is the same @ all volume levels

your problem is the wiring... but it is really hard for me to see where the problem is..

is there a way for you to send a picture of what you have done?

Dec 24, 2007 | Rockford Fosgate Punch P5002 Car Audio...

1 Answer

Volume goes up by itself

First, check your software firmware version and see if there is an update. If available read your manual how to do a firmware update using your USB port, if you don't have a manual, check for their online manual and firmware updates. I had a different problem but the firmware update solved it. Another tip to increase the depth of your bass, while doing the adaptiq process, cover your bass speaker with a pillow, this will make your bass more deeper. You need a second person to cover your bass module with a pillow. in this way, the adaptiq process cannot hear the bass sound and it will increase the bass. You might need to do this several times until you get the desired bass sound. If you have not setup using adaptiq, your better off not using adaptiq, the sound is much better. Hope this helps.

Nov 18, 2013 | Bose Lifestyle V25 Theater System

1 Answer

How do i calibrate my powered subwoofer for my car

OK assuming you are referring to after market sub and amp whether or not added to factory head unit (stereo). #1 start your engine, and have your amp adjusting knobs accessible #2 insert a CD of the most listened to type of music (Rock,rap,classic) #3 adjust your stereo volume to YOUR max preferred db level with your amp levels at the lowest settings possible #4 start by increasing your freq. rang by 2 bands at a time then the same with gain, once you have gotten your bass to the level you like with out distorting or popping try increasing your bass boost (if available) till your preferred sound(may need to back off gain and freq. add bass boost accordingly until you like what you around with it for a while make sure you do this at the peak volume in which YOU listen to music because if you do it at a low volume and then turn it up you can blow your equipment . side not 8''in is for very fast bass reps, 10''in is for average rock and 12''s 15''s 22''s are for your low long deep bass reps such as rap and R&B anything else just e-mail me

Jan 10, 2012 | Mazda MAZDA3 Cars & Trucks

1 Answer

Is it possible to hook up 2-6x9 and 2-12in.subs to the 7540a and still pack a nice punch

yes it is however the hookup for it requires something a bit unorthodox

you have 4 outputs (bridgeable)

channel 1 and 2 must be bridged (to lower the ohms) then connected to the 2 6X9 in Parallel..
this must then be set to the high pass frequency (eliminates bass)
lower all the settings as low as possible then turn them up slightly to increase volume to a level where its the hardest and clean sounding..lower volume after

this eliminates the bass and keeps the 6x9 pushing your mid range and high range frequency

now you have 2 channels remaining,, set 3 and 4 to low pass and connect each 12" to an individual channel. (this keeps the bass and ohms high so you will get a clean bass to match with mids and high's. Dont set or bridge for a low bass as it will jam out the 6x9 and your music will sound terrible.

so there u have a simple hookup that will work and keep you sounding clean. remember not to raise the volume on the 6X9 too much as you will blow them..

Mar 29, 2011 | Infinity 7540A Car Audio Amplifier

1 Answer

What would cause my fossgate t1500 to shut off everytime the bass hits hard I have two t12s that it pushes

Sounds like your amp isnt powerful enough to power your subs, whats the wattage of your amp and both subs? Its shutting off when hard bass hits to protect itself from blowing, a good feature as a blown amp means a new one. an amp should always be more powerful than the speakers / subs you are connecting to it. for 2 500w subs your looking at a 1200w amp minimum.

Feb 22, 2011 | Car Audio & Video

1 Answer

What duz level adjustment do


The level control controls the input level coming from your head unit (receiver) to the amp.

Your Sony users manual is a little vague on how to best adjust the level and other controls.

Here is one method that some installers use and works well with most amps.

Most 10" subs sound best between about 80-100hz and below, so start out by setting the LPF at about 80hz. The HPF will not be used. Next turn the bass boost and gain all the way down. Turn on the radio and set all tone controls, bass, midrange, treble to flat, usually "0" on most head units. Turn the volume up to approximately 3/4 volume level or just until you begin to hear distortion. Now, back the volume down until the distortion is gone. Next turn up the gain control on the amp until you hear the subs start to distort then back the gain down until the distortion disappears. Next turn the bass boost up again until the subs begin to distort, then either back the bass boost down or back the gain down until the distortion is gone. You may need to play around with the bass boost and gain controls to get exactly the sound you prefer.

Hope this helps.

Mar 28, 2009 | Sony Xplod 1100 Watt Max 10" Subwoofer,...

1 Answer

Fender Rumble 100 210 pop noise then hum after strong low e note

I just fixed my bass amp with a similar problem last week: the problem is related to a loose connection on the PCB board (likely).
A bass amp is a rough place for circuitry: the low rumble and power shake a bass amp more than a guitar amp.
In my case, the power transistors needed to be re-soldered and then the grounding bolts and screws needed to be removed and cleaned because the connection was bad. Remember that when two different metals needed for an electric connection are toughing, there is the likelyhood that corrosion WILL happen.
My bass amp did basically the same thing yours did: sounded good at low volumes, but at higher volumes it would act up.
In short, there is nothing you can do (unless you are a repair person): you need to take it to a local music shop and have a tech fix the intermittant contact problem: someone who knows what they are doing should only take an hour at most.

Hope that helps!

Feb 22, 2009 | Fender Rumble 100 Bass Guitar Amplifier

1 Answer

Infinity Bass link keeps cutting out.

Tapping into front or rear gets high level signal 3 plus volts at low impedance which is totally unsuitable for the sub's line level input which is more like 300millivolts > A competent tech could make up an attenuator patch or just take it to a professional car installer before you do more damage

Jan 15, 2009 | Infinity BassLink II Car Subwoofer

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...

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