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Old 08-20-2015, 01:29 PM
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Default On axis (ish) vs windshield bounce

Currently running a CDT 3-way setup in my BRZ. All speakers in stock locations. That means 6.5" in the doors, and 3" and tweets firing into the windshield. I've TA'd and EQ'd, and it sounds pretty decent. However, at high volumes with music that is "busy" (meaning not an acoustic track or vocal type track, but one that has a lot going on) I tend to lose a bit of clarity. I wonder if this has to do with the windshield bounce and the smearing effect it can cause.

I've had the thought of trying to get the drivers in the dash more on axis. Due to space, I'd have to replace the 3" with a 2" wideband and try to angle it / recess it to fit under the stock grill. Not sure what to do about the tweets (maybe try tweeterless for a bit). But then I'd need to highpass the dash higher. Right now I have them at about 450Hz, maybe I would have to take it up to 800Hz with a 2-inch?

Any comments or suggestion about this, or if it will even have an effect on the lack of clarity I experience?
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Old 08-20-2015, 03:39 PM
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You have to make adjustments using your own situation. Get some double sided sticky tape and see for YOURSELF if it would be beneficial.
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Old 08-20-2015, 04:54 PM
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I understand, but I hate to have to buy drivers just to see if it would make an improvement. But I guess that's the game we play.
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Old 08-20-2015, 05:25 PM
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I know having my tweeters on axis helped quite a bit. Off axis they had a harsh s sound I assume from reflecting off of the glass. On axis this is gone and much smoother.
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Old 08-20-2015, 05:55 PM
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Quote:
Originally Posted by Vmax911 View Post
I understand, but I hate to have to buy drivers just to see if it would make an improvement. But I guess that's the game we play.
Use your current speakers and angle them on the dash to see if that would fix it. Then go ahead and purchase the smaller mid to fit it at that angle.
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Old 08-20-2015, 07:44 PM
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I am working on the same thing here.
I have full size RS180F's that I am moving around to find best imaging.

Good luck, lots of trial and error it seems.
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Old 08-20-2015, 07:54 PM
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If you are going to play around with placement options PVC end caps and some cut pieces of the corresponding pipe size work well.
So does some metal strapping and lamp fittings if you are going to long term test.
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Old 08-20-2015, 08:02 PM
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Quote:
Originally Posted by craiggus365 View Post
If you are going to play around with placement options PVC end caps and some cut pieces of the corresponding pipe size work well.
So does some metal strapping and lamp fittings if you are going to long term test.
I actually thought of the pvc caps, but might have read it here somewhere.
I would like to see pics of the lamp fittings/straps to see what we are talking about.
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Old 08-20-2015, 09:06 PM
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Guess I have some work to do.

Can it be said that typically on axis midrange and tweeter is preferred to firing into the windshield?
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Old 08-20-2015, 09:09 PM
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Quote:
Originally Posted by Vmax911 View Post
Guess I have some work to do.

Can it be said that typically on axis midrange and tweeter is preferred to firing into the windshield?
I would think generally it is better, but really depends on drivers and windshield etc...
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