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Discussion Starter · #1 ·
G8 is at the stereo shop and they installed a digital processor off the factor radio then it goes to the amp for components and the amp for the sub. Everything sounds great except the sub won't play very low. They were thinking the factor radio may have some filter for the mids and highs so its not sending the lower freq signal out. They are moving the input for the processor for the sub to the wires for the factory sub. Any input on this?
 

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Which processor? You would definitely want one that does some kind of active eq correction. I've used both the JL cleansweep and Alpine's pxe-h660. These work by playing a known frequency sweep via CD and comparing the known pattern to the one received by the processor from the OEM unit. It can then adjust and eliminate any built in factory speaker protecting cutoffs.
 

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Discussion Starter · #3 ·
Ended up being bad sub.
 
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