I was told putting tweeters where they bounce off windshield or back glass would make them sound better than pointed directly at listener??is this true
That can be done with tweeters, if you've ever seen them facing up on a dash board and bouncing off the winshield, but for their size and output, you need nice tweets to do that. It's usually better if you can have them facing directly at the listener.
I know about subs but I was redoing my components this weekend and was going to put the tweets for the rear set on or in the rear pillars by the back window and someone told me to put on rear deck and bounce off window instead
If you've got decent tweeters, putting them in your back deck would be eaiser, more convinent, and should sound better, it also depends on your car's acoustics. and the direction of the window tilt.
I wouldn't put tweeters in the back. It will pull the soundstage to the rear, away from where you want it. Tweeters should stay in the front of the vehicle, the rear should be midbasses, or if you do components, the tweeter shouldn't be overly bright. Windshields have resonances, they are the worst resonant material in your car, and you can't do anything about it, this will detract from the SQ of the tweeter if you use the windshield as a guide to try to get more sound out of it. It's ok for a front soundstage where you're using the tweeter in an attenuated fashion to raise the soundstage, but when it's a main tweeter, it'll make the sound quality crappy.
I got a great deal on 2 new sets of polk component sets and was gonna do 1 front 1 rear I am just running off of my head no amp yet and maybe never its an 02 mustang so it's small no one rarly but me in this car
Then don't use the windshield. Point them at you if anything, but like I said, you're better off without any tweeters at all back there. You could use the front component set as mains, with the mid and tweeter close togeter, then install the tweeter from the rear set up higher in the A pillars up front, and just install the midbass as rear fill, hint hint. Fade the rears out and this will attenuate both the tweeter and rear mid, this will give you a little added detail of that tweeter up top, plus it will raise the soundstage, and you'll get a good midbass in the rear that won't pull all the sound to the back. That's what I would do in your situation, anyway.