HK radio and door speaker upgrade

[Turbo Brian]

HK system here. I’ve been reading other threads regarding the dash speakers also being out of phase and that reversing the polarity on the Metra 72-7902 provides some benefit. Has anyone come across this?

I'm not saying I'm correct, but I haven't read that anywhere. I've always seen referred to the door speakers being reversed. I suppose it depends on which way you look at it - the door (4) 6x9's + (2) front door tweets vs. (3) dash + (2) rear headliner + (1) sub.

 

[N7GZN]

My understanding is that the door speakers front and rear in the H/K system are mid-bass only, the outputs from the head unit are rolled off at 300hz, so adding coaxials will not be as much of an improvement.
Speakers are 4 ohm impedance
Check out this older thread, lots of good information.

H/K audio upgrade - VAST Improvment

I just got done doing some upgrades to my audio system and figured I'd throw the info out there in case there was interest. To start, I have a 2020 Limited with H/K. I can't believe they would put a system in that level of truck that sounded that bad. The subwoofer is a piece of garbage -...

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