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Head unit / amp question

Old 11-12-2016, 05:03 AM
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Default Head unit / amp question

Probably a dumb question... If you are running speakers and sub off of an amp, does the wattage output of the head unit make any difference? For instance, 50 vs 75?
Old 11-12-2016, 05:43 AM
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Originally Posted by Graddy-fied View Post
Probably a dumb question... If you are running speakers and sub off of an amp, does the wattage output of the head unit make any difference? For instance, 50 vs 75?
No not really. Although the power output relates to the amount of voltage the HU has to give to the input of the amps its not a "real" number. Brands have no standard on what the output is based on so they can claim about anything to put market the competition. In reality most marine head unit put out around 10-12 watts rms. That's about >2volts. This is why you end up using so much gain on an amp.
Also, when you crank the vol up a lot of headunits start to clip. Typically at 3/4 of total vol. if it's a fusion set gains at vol #20. Anything after that is distortion.
Truly the best set up is something like the Jl media master and some BT controllers that do not ever clip. They are designed for clean output all the way to max vol.

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