(Advertisements are not shown for registered users)

Enhancing audio quality of stock head unit? (1991 DX)

Audio, video, navigation, radar detectors and more. Also for alarms, security systems, kill switches, and other immobilization techniques.

Moderator: Moderators

Enhancing audio quality of stock head unit? (1991 DX)

Postby ChiRX » Fri May 19, 2017 6:14 am

Hey everyone,

I've been working on restoring a '91 DX that's become my baby; trying my damndest to keep everything stock. I replaced the front speakers and installed two in the rear, however I'm noticing some audio quality / fidelity issues that I'm almost positive are due to using the stock head unit.

Is there any kind of preamp or other add-on device I can add to the stock head to enhance the audio quality? I have had no issues using a Sony cassette adapter to play music from my phone while cruising. Any help with this much appreciated!
"Cars and cameras are the two things I let myself be materialistic about. I don't care about other stuff."

~Louis C.K.
User avatar
Posts: 12
Joined: Mon Nov 07, 2016 10:41 pm
Location: Chicago

Re: Enhancing audio quality of stock head unit? (1991 DX)

Postby thaeli » Tue May 23, 2017 4:20 pm

Yes, you can add an amp using the factory wiring. Use Metra harnesses so you don't need to chop up your factory harness! Basically, you'll take the speaker outputs from the head unit, send them to line level converters, the line level converters feed an amp, and then the amp outputs go where the speaker outputs would have gone.

This can be done 100% concealed with a small amp. If you're adding a sub, the wiring gets slightly more complex and creative placement of a small sub for 100% concealment will be needed, but that will help with sound quality as well.
Posts: 97
Joined: Fri May 15, 2015 9:09 am

Re: Enhancing audio quality of stock head unit? (1991 DX)

Postby tommy » Thu May 25, 2017 8:17 am

If you're adding an amp, you're already veering away from stock. A subtle aftermarket head unit will look much better, perform better than any combination you could come up with on a stock hu, and incorporate new technology.

I get what you're trying to do with your build, but I also think that you may be overthinking things, too. Did you replace the old stock speakers with stock speakers?

Another thing to think about - if you go with a stock HU size, everything is reversible. My :twocents:
1990 ZcSi
User avatar
Not Forgotten
Posts: 2843
Joined: Fri Jun 22, 2007 12:37 pm
Location: Westwood, NJ

Re: Enhancing audio quality of stock head unit? (1991 DX)

Postby Baker » Thu May 25, 2017 8:50 am

You could upgrade to a newer factory head unit.
Still retain a factory look, but with better sound.
User avatar
Mr. Search
Posts: 20041
Joined: Sat Aug 12, 2006 8:48 am
Location: The 607 Fingerlakes Region of NY

Return to Car Audio, Gadgets and Security

Who is online

Users browsing this forum: No registered users and 6 guests