Re: Windsheild destructive reflection remedies
Towels taped to windshield at bottom , some way of tenting towlels over top of speakers .
Facing one another if the off-axis response is not an issue , may work well !
With hard surfaces all covered or softer surfaces blocking the reflections , the null/node/suck-out may lessen or dissappear.
Re: Windsheild destructive reflection remedies
www.pioneerelectronics.com/PUSA/Car/Stage4/
2 5/8 inch reference level ( would be ideal )
Re: Windsheild destructive reflection remedies
Quote:
Originally Posted by
Hic
What do you have to "temporarily" block these reflections? Redirection via a 90 degree / right angle pvc elbow of sufficient size ( 6 inch ).
Ie: rubber / carpet / towels / et cetera , think softest surface and extremely thick , facing drivers in direction that allows you to avoid majority of reflections - " temporarily ". Perhaps towels wrapped around rear of speakers and speakers firing at each other ! I believe your ears will suffice for your temporary testing to determine that reflective energy is your issue ( my bet ).
I tried some temporary reflection blockers I found roaming around the neighborhood...
https://i.pinimg.com/236x/d4/14/cf/d...edb3f56aff.jpg
https://encrypted-tbn0.gstatic.com/i...1c0Ml6FUAz-FWl
https://i.pinimg.com/736x/0e/d6/8a/0...-cute-cats.jpg
http://files.automama.eu/200011694-8...d0/lachtan.jpg
https://i.pinimg.com/736x/77/91/8d/7...ny-animals.jpg
Anybody know a good product to clean off the dashboard? :p
Actually all good suggestions Hic... just need to find the time to try some things out...
Re: Windsheild destructive reflection remedies
Quote:
Originally Posted by
Hic
Yes, those are the ones I'm considering as a last resort... really was impressed when I heard them and I believe they play pretty high so won't really miss anything if I replace the tweeters with them.
Re: Windsheild destructive reflection remedies
This one will help tame those unwanted " ReflectionS "
Quote:
Originally Posted by
Truthunter
Re: Windsheild destructive reflection remedies
Quote:
Originally Posted by
Truthunter
Yes, I plan on experimenting with this to see if it makes a difference...
2. So, I think I will perform the following tests and go from there:
1. Unmount the mid and measure it free air on-axis to off axis to verify it's not just a problem with the driver FR itself.
2. Experiment with tilting the mid in different directions like Howard suggested to see if the issue improves.
Get anytime to do some experimenting yet ?
Re: Windsheild destructive reflection remedies
Quote:
Originally Posted by
Hic
Get anytime to do some experimenting yet ?
Hopefully this weekend...
Re: Windsheild destructive reflection remedies
Re: Windsheild destructive reflection remedies
Was able to do some experimenting. I popped the mids out of their mounts and jammed them between the windshield and dash using some towels; basically on axis:
https://lh3.googleusercontent.com/6b...c=w562-h316-no
Here is the resulting RTA comparison; Red is dash mounted, Blue is on axis in towels:
https://lh3.googleusercontent.com/2E...g=w800-h380-no
Next experiment is to start playing with tilting up the back of the them (side near the windshield) at several different increasing angle to see if I can find a sweet spot...
Re: Windsheild destructive reflection remedies
Graphs are not showing up , but , more importantly , how did they sound ? Did the null , node or suckout dissappear ?
I'm glad you got some time to try some things !