OEM speaker swap with Polk Audio speakers

[1biker]

The reasoning behind the stock system is the EQ curve of the DSP (digital signal processor) changes with volume settings. Bass is reduced and treble increased as you turn it up. For this reason, when you run an aftermarket amp, you must flash the head unit to flatten the EQ curve via Digital Technician ( computer at HD) to the specifications of the atermarket amp you install. With the correct flash, the EQ curve is flat across the volume range allowing the amp to do what it's supposed to wherever the volume is set.

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Ah right now I have the Bass set to full and Treble set to 1/2. So if I want less upper mids at highway speeds I should drop the treble down a bit correct?

 

[Spazz]

Ah right now I have the Bass set to full and Treble set to 1/2. So if I want less upper mids at highway speeds I should drop the treble down a bit correct?

You can... but the auto adjustment within the DSP does reduce bass and increases treble... you should try running bass at 70% and treble around 45%... see how that works for you. It may make it more crisp ( clarity ) at higher volumes

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[1biker]

You can... but the auto adjustment within the DSP does reduce bass and increases treble... you should try running bass at 70% and treble around 45%... see how that works for you. It may make it more crisp ( clarity ) at higher volumes

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Thanks for the tip I will try that out.