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Discussion Starter · #1 ·
I know this is a car auido forum but this question pertains to a recent shelf system i have purchased. I have an app on my iphone called equalizer. It allows you to boost the bass up to 14db. Right when i recieved the shelf system of course i plug everything in, set the bass boost up to 14db and start banging the subs loud as phuk. I know that all subs have a certian hz range and youre not supposed to go outside of those boundries, but i have no clue what the range is for my subs. I started messing with different frequency, and found at about 60hz it was hitting the low notes very well, whenever i went below 60hz it didnt sound as loud so i decided to stick with 60hz. I didnt do any research on what hz range to use, db boost, etc. like i should have. So here we are a few days later and im noticing the subs seem to sound a bit sloppier compared to when i first got them, there is a shaking type noise within the subwoofers that i dont think was there before. Then again maybe nothing has changed and im just paranoid. Did i goof? Perhaps set the bass too high, wrong hz range or something like that? Are eq apps for subs a bad idea? Have i caused permanent damage to my subs? Any help is appriciated. The shelf system i purchased is called the Sony LBT-GPX55 if that helps.
 

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2015 F150 Platinum 4x4 SuperCrew
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With that moniker...I can see how this question came to be...it's either a fishing expedition, spam, or you need to do some serious research on what 3db of signal gain does to the power output of the amplifier, and how that relates to sound levels.

READ:

http://www.diymobileaudio.com/forum...fier-speaker-power-requirements-revealed.html

http://www.diymobileaudio.com/forum...oosting-one-frequency-band-impact-others.html

Power and Efficiency from Sound Systems

Most likely, that 14db of gain is trashing your amp and sub. Research: "clipping amplifier"
 

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Discussion Starter · #3 ·
With that moniker...I can see how this question came to be...it's either a fishing expedition, spam, or you need to do some serious research on what 3db of signal gain does to the power output of the amplifier, and how that relates to sound levels.

READ:

http://www.diymobileaudio.com/forum...fier-speaker-power-requirements-revealed.html

http://www.diymobileaudio.com/forum...oosting-one-frequency-band-impact-others.html

Power and Efficiency from Sound Systems

Most likely, that 14db of gain is trashing your amp and sub. Research: "clipping amplifier"
But is adjusting the gain on an app the same as adjusting the gain directly on an amplifier? Whenever i turn the gain up on the app, there is a little bar called pre-amp, which adjusts automatically so that no sound is distorted. But even then, i can still hear the subs getting loud and shaky rather then smooth and clean if i turn it up enough. So im not really sure how effective that is at preventing distortion. Should i just ditch the app, or turn down the gain or what? Im pretty new to all this stuff so i didnt really understand much in the links you provided. Perhaps a simplified summary would help me out.
 
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