old jbl 1200.1bp

[d77543020 10+ year member]

is this a myth or a fact using all 4 inputs makes the amp a little louder i have read post where some guys swear by it and others who says it makes no difference dont want to waste cash on some y splitters if i dont have to

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[Spooney 10+ year member]

As long as you have enough signal going into a single pair of inputs to drive the amp to full power I don't see how using both pairs of inputs could make the amp any "louder" .

 

[d77543020 10+ year member]

As long as you have enough signal going into a single pair of inputs to drive the amp to full power I don't see how using both pairs of inputs could make the amp any "louder" .

I feel the same way but theres lots of post that say this amp gets louder using all the inputs but I tend to agree with you

 

[Spooney 10+ year member]

I feel the same way but theres lots of post that say this amp gets louder using all the inputs but I tend to agree with you

As long as your subwoofer output on your radio is non-fading and high enough voltage to drive the amp to full power you would see no benefit from using all four inputs. The manual eludes to that a bit.