If your goal is to build around a 6x9, sure, it can be done. But few people ever do that because it's unnecessarily difficult. You typically only see it because of sponsored builds. And if we're just talking dedicated midbass drivers now, we're already into a totally different conversation.As mentioned, a 6x9 is not necessarily going to reduce sound quality at all, especially when used as a midbass with a tweeter. Mostly 6x9's get a bad rep because they have traditionally been gimmicky coax speakers with 2,3, or even 4 "tweeters" in them. A well made component 6x9, especially when used as a midbass, will be every bit as good as a 6.5", but will have better low end response due to more cone area. A 6x9 does have a different dispersion pattern on the wide side than the narrow side, but that's really not a big deal at all, especially at lower frequencies.
That PAC piece is as good as it gets if you insist on keeping the OEM head unit. I've never seem measurements of the signal, but I wouldn't expect it to be particularly bad. I'm betting the signal is pretty flat, clean, and fullrange, but even if it's not perfect what other choice do you have? Replace the OEM head unit, or use the PAC interface.
I don't really want to keep the OEM source unit, but it's needed to control much of the heating/cooling, car diagnostics, etc. It can't be removed. It can be replaced with an alternative or an independent setup can be installed. I have yet to see an alternative unit worth 5 seconds of my time. And and independent setup is tough because i still lose a lot of functionality of the vehicle, such as blind spot warning, diagnostic tones, backup warning tones, steering wheel controls, etc. And of course it's particularly tight with all the gadgetry in my vehicle, so finding somewhere to put the damn deck would be a challenge alone. So i was hoping that this PAC audio device was able to output a decent enough signal to be used for a SQ-esq build. I don't expect it to match the 5V pre-outs from my 80prs or the 8V from my old Eclipse deck or God forbid a McIntosh, but I was hoping at least for something respectable... Something far exceeding line out quality.
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