Quote Originally Posted by matt5112 View Post
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Properly entails the tweeter on axis, the tweeter and midwoofer as close as possible, preferably within an inch of each other. (actual distance is based on the crossover frequency which i couldnt tell you since all speakers are different, even ones that are the same "model".

Run stock size unless you can fit larger. Never smaller. 6.5's fit in the sixth gens, no idea on the seventh.

May I disagree?

Within a vehicle environment I'm not so sure that a mid next to a tweeter will promote the best quality. Quality is relative. Crossover points will be different with every speaker and its location; as stated already.

The goal should be to maintain the tweeter and mid on the same vertical axis whether they're next to each other or 20 feet apart. Tweeters on-axis vs. off axis depends on the speaker itself. It also depends on the type of reflections in your vehicle. I can already attest to issues with having leather seats in the car vs. cloth.

Me and matt bicker all the time His background is home audio. He probably has more experience than I do too. I take more of a theoretical approach with emphasis on processing the music to fit the needs of a much more aesthetically pleasing install. He's a purist and wants the install to mimic an ideal setup.

I've been reading up a lot on how humans perceive "height". Our ears are not very good at processing heights and therefore our brain uses other cues in an attempt to establish height. Even vibrations play a role. It seems that psycho-acoustics could play a big part with installations and the base point for humans interacting with height starts with a focal point on a horizontal plane. Therefore, if you can keep your speakers on the same vertical axis they essentially maintain a similar point of origin.

This allows me to treat the mid and tweet as a single source point when EQ'ing, adding time delay, or other tidbits involved with tuning. However, amplitude and crossover points plays a BIG role in this too. Quality isn't always something you can put your finger on when it comes to car audio. It takes a good application of theory mixed with old fashioned trial and error. Unless you know somebody who's already got your car figured out