General Q for a 12W7

[jesse6666 10+ year member]

Can someone explain input and gain etc. I have a bass boost switch and a Head Unit that allows me to set the bass (-9 to 9) What is the difference and how do I set it properly. Im using the JL 12W7 powered by a 1001bd Rockford Fosgate amp

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[tobz 10+ year member]

It does just that, boosts the bass. You can use it to adjust the amount of bass that is being sent to your sub.

 

[jesse6666 10+ year member]

no I understand that the bass boost makes it louder, but is there a difference between setting the sub bass output level on my head unit and increasing the bass boost?

 

[Mark_ab 5,000+ posts]

Bass boost on an amplifier, generally speaking, boosts the signal at 40hz. Essentially it's a one band EQ at 40hz. The subwoofer control on the HU effects all frequencies that the subwoofer plays.

 

[cobra65427289 10+ year member]

i wouldn't use the bass boost on the amp, it will extend the life of your woofer.

al

 

[jesse6666 10+ year member]

Bass boost on an amplifier, generally speaking, boosts the signal at 40hz. Essentially it's a one band EQ at 40hz. The subwoofer control on the HU effects all frequencies that the subwoofer plays.

is 40Hz a particular sound that sounds better?

Cobra, I appreciate the info..will I not shorten the life of the subwoofer by increasing the sub bass output on the head unit? JL 12W7's are pretty popular; do they have a good life-span? What determines the life of the driver - im using 750 watts RMS which is what is suggested by JL for the sub for optimum playing sound. Does the bass boost request more amp power, or...?