Door panel build, questions recommendations

[Grantnewman38]

I plan on doing a door panel build in my 2006 dodge ram. I have a few questions,

If I were to do two 6.5s and should I get two component speakers complete with the crossover and tweeters?

Or 2 6.5s and one super tweeter like the Rockford Fosgate tweeter punch pro 1.5" tweeter? If so what would I need?

Reall I'm looking for people who've done it before so I can ask questions... I'm looking at the RF T3 speakers.. So maybe any links to this kind of info or your 2 cents. Thanks

[bushroot]

Be careful using multiple tweeters. You get something called "comb filtering". http://www.audioholics.com/loudspeaker-design/comb-filtering

When using multiple drivers, there are ways to avoid this. It involves CTC (center to center) distance of the drivers and the frequency they will be operating at. Have a look at this: http://en.wikipedia.org/wiki/Midwoofer-tweeter-midwoofer

One option is to roll one driver off early, but that gets into some pretty interesting crossover design work. This works the other way as well. When using multiple midbass drivers, you also roll the low frequencies off in a design like a MTMMM between the top and lower midrange. You would also want to figure out baffle step correction in such a setup. http://sound.westhost.com/bafflestep.htm

This is the idea behind a coaxial speaker. In theory you are trying to create something close to a single point source. See, it's really difficult for one speaker to reproduce the entire audio spectrum. http://fullrangedriver.com/singledriver/theory.html

I'm certainly not saying that you couldn't tune around the issues you would create with multiple high frequency drivers, but spending a little more time on the design and layout will save headaches later.