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RE 6.5 Comps Questions

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Old Jun 5, 2005 | 05:52 PM
  #1  
WinnipegGTA's Avatar
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RE 6.5 Comps Questions

Has anyone listened to or heard the RE 6.5 comps or the XXX 6.5 Comps. Would either work well in kick panels.(Rezn8or style) Just looking at high quality options to Adire Koda's.
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Old Jun 6, 2005 | 09:23 AM
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
I've got a pair right now in my old kick panels (i.e. not my new design).

Overall, I'm less than thrilled with the sound. They have a harshness in the upper midrange. I haven't figured out if it's from the tweeters or the mids yet, but if it's the mids, it's quite possible that it's due to my kick panel design, because my old speakers exhibited a similar harshness. When I get the mold done for my new kick panel design, I'll re-evaluate them.

I also noticed that panel resonance is having a significant contribution to the sound, so some sound deadening is necessary before I can really comment on the sound of the speakers.
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Old Jun 6, 2005 | 09:51 AM
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Stupid panel resonance.
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Old Jun 7, 2005 | 01:56 PM
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I had the panel all sound deadend with Dynamat proir to the install of my old Alpine Type X's, i even matted the kicks themselves and i found the X's very harsh. I even had them Bi-Wired off a 4ch amp. Just couldn't get them tuned in properly. Spent lots of time adjusting the crossover's and just couldn't get a sound i like. Found they very lack in mid bass as well. I put a set of 5.25 Kicker Coax's in my GF's Accent's doors and it get better midbass then the 6.5's. However the imaging was good with the kicks.
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Old Jun 7, 2005 | 03:15 PM
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From: Winnipeg,MB,Can
Car: 1991 GTA
Engine: 5.7L L98
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Axle/Gears: 3.23
Hey how about JL XR or ZR 650CSi series speakers. Id love the 3way but no where to put the 4incher.
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Old Jun 7, 2005 | 06:26 PM
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The speakers were probably not at fault for the lack of midbass - that's more likely an enclosure issue. I did hear that the X tweeters were somewhat harsh. My buddy actually bought their slightly cheaper model because he thought they sounded better.
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Old Jun 9, 2005 | 10:40 AM
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nothing is as harsh as my damned kappa plates... I find myself hating them more and more as time progresses... I fade mostly to the back now... what a waste of money

can't wait for your kicks Jim
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Old Jun 9, 2005 | 12:06 PM
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I knew we would convert you one of these days, Scrap
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Old Jun 9, 2005 | 12:28 PM
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Originally posted by ScrapMaker
nothing is as harsh as my damned kappa plates... I find myself hating them more and more as time progresses... I fade mostly to the back now... what a waste of money

can't wait for your kicks Jim
I can't wait to get done with them so I can go back to having a life.

I broke the mold I made the other night, so tonight I get to try and fix it.
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Old Jun 9, 2005 | 01:09 PM
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From: Austin, Texas
Car: 2000 Trans Am WS6 (Black)
Engine: LS1
Transmission: 4L60E
well... I faded my soundsystem forward to my plates, and just listened to them for a little while... I think the tweeter is just a pile of crap on them... I can get the 4-way 6x9s *roughly* twice as loud... to my hearing... no idea what decibels... twice as loud before I hear distortion

the best/worst thing about my 6x9s is they have amazing bass response... but that's not what my car wants at all... I'm about to go insane...

I pulled the plastic trimmings off and tightened up all the bolts that hold the 6x9 mounting panels in place... this got rid of some of the rattles, but there is something BEHIND the 6x9 that is rattling, it sounds like the wiring bouncing off the cone itself, but I proved this to not be true by taping the wiring away...

I also know it's not the speaker itself, because if I hold it in my hand, it has no strange noises, and amazingly enough, has great bass response, in my hand... I even let it play as low as 40hz no problem... if I had to compare these things to subs, they sound like 8"ers, when installed in a good car.

Jim, do you have a timeframe for these kicks? they sound like they will be unbelievable to me... and now I'm itchin' for some bitchin' sound.

oh yeah, and I know it's not the amp, because I'm using the same 4 channel on my 6x9s and they sound great...

I had to use the amp's built-in HPF on the plates because they sounded like crap and distorted at much too low of a volume... it's like the cross-over in the plates aren't suitable for the tweeters in there... (are they the same as the kappa perfect 1" silk dome tweeters in the components?"
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Old Jun 9, 2005 | 01:17 PM
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From: Austin, Texas
Car: 2000 Trans Am WS6 (Black)
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this has me thinking... what would these 6x9s sound like if I spaced them away from the chassis, so air could flow directly around the woofer? Maybe I could put a small baffle around the woofer to keep the sound from bouncing out right away...

I'd pretty much do ANYTHING to get those rattles to go away... anything except spend hundreds of dollars on sound-deadening material...

I bet the phase wouldn't even be THAT offset to allow the air to directly escape right around the speaker like that... even without the baffle board.
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Old Jun 9, 2005 | 02:31 PM
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From: Winnipeg,MB,Can
Car: 1991 GTA
Engine: 5.7L L98
Transmission: 4L60
Axle/Gears: 3.23
So no opinions from you select few Audio guru's about JL comps?
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Old Jun 9, 2005 | 02:39 PM
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From: Readsboro, VT
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Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Scrap,

I'm hoping that in a couple weeks I can start devoting my time to the speaker development, and that should go a bit faster than the damned kick panel molds I've been screwing with. I'd like to say that in a month or 2 I'll have something, but who the hell really knows.
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Old Jun 9, 2005 | 04:33 PM
  #14  
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Originally posted by Jim85IROC
Scrap ... who the hell really knows.
um... I'd hope you would!

good, you'll give me some more time to save money...
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Old Jun 9, 2005 | 07:42 PM
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I put the liquid sound deadening stuff all over the metal panel. It improved the sound dramatically, and there was no more rattling when I put the speaker back in. Then I installed the plastic grille - got some rattles at specific frequencies. Try putting something between the plastic hooks of the grille that latch on to the larger plastic piece. Should solve your problem.
It may also be the larger plastic piece vibrating against the metal wall of the car.
Just some options.
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Old Jun 9, 2005 | 09:49 PM
  #16  
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maybe I'll just put some plastic spacers on the screws, and get some longer screws, so air can flow around, and that should end all rattles.
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Old Jun 9, 2005 | 10:07 PM
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I'd check to make sure it's not the plastic on plastic and all your screws are tight (not just the ones holding the speaker, but also the ones that hold the plastic together) before you go through all that. You're going to lose output if it isn't sealed as well as possible.
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Old Jun 9, 2005 | 11:19 PM
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what plastic are you referring to?

I've tightened up the metal panel that connects to the chassis... and the actual speakers to the metal panel... they are tighter than... well you know.
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Old Jun 10, 2005 | 05:05 AM
  #19  
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There are two big plastic pieces that make up bulk of the rear quarter panel on each side, plus the sail panel grille (making 3 in all). Keep in mind, I've also covered all the metal with liquid sound deadener and the heat shield and stuffed polyfill in the rest of the open spaces - so I have no more direct plastic on metal contact. I made sure to cover the metal where the speaker screws in, so the speaker basket doesn't vibrate against it. As far as screws go, I recall 4 on each side, including the coat-hanger piece.
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Old Jun 10, 2005 | 11:24 AM
  #20  
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I don't have the actual sail panels on, because my 6x9s are too large for for them to fit, without modification.
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