#1430512 - 04/07/08 03:17 PM
Is it impossible to get good SQ with rear speakers?
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FatalFlaw
SD Newbie
Registered: 03/07/08
Posts: 2
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I'm new to this hobby and when I was considering what to install in my car I assumed simply upgrading all of the factory locations should work well (02' Mustang w/ Mach460). That meant four 6x8's and 4 tweeters, spread evenly between the front and rear. I'm happy with the system but I know the SQ could be better. Is there really no right way to run rear speakers to still get sound quality? I've put a lot of time, effort, and money into getting some rear speakers installed. I would hate to just not run anything back there. Is there any rear speaker configuration that will still give SQ?
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#1430516 - 04/07/08 03:41 PM
Re: Is it impossible to get good SQ with rear speakers?
[Re: FatalFlaw]
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Lou Dub/pastaRocket/Red Wings
Video Post whore.
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Registered: 30/01/06
Posts: 9308
Loc: Mantweeeka,Ca
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I'm new to this hobby and when I was considering what to install in my car I assumed simply upgrading all of the factory locations should work well (02' Mustang w/ Mach460). That meant four 6x8's and 4 tweeters, spread evenly between the front and rear. I'm happy with the system but I know the SQ could be better. Is there really no right way to run rear speakers to still get sound quality? I've put a lot of time, effort, and money into getting some rear speakers installed. I would hate to just not run anything back there. Is there any rear speaker configuration that will still give SQ?
_________________________
Wow, words of wisdom from Lou. Who would have thunk it? 2 down,a few more to go.''Life's tough.....it's even tougher if you're stupid.''
-- John Wayne ,Lot Lizard Lou
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#1430860 - 05/07/08 04:07 PM
Re: Is it impossible to get good SQ with rear speakers?
[Re: FatalFlaw]
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TtownCLS
Dream it Design it Build it
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Registered: 11/02/08
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There are people who have used rear speakers with a band pass X-over and 20ms or more time delay to create a true rear fill. It's supposed to mimic the reflections that would come from the back of the concert hall. I played with it a little in the Acura. The only benefit I ever got was a "larger" sounding space in the car. It pulled my front stage down and in. I ended up taking the speakers out of the rear deck and never looked back "literally" again. The car actually has reflections from the back glass anyway. I'm sure someone has managed to make it work, but I've never heard one that worked.
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#1431126 - 06/07/08 08:38 AM
Re: Is it impossible to get good SQ with rear speakers?
[Re: MacLeod]
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sq civic
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Registered: 14/05/08
Posts: 18
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Nicely said Aaron!!! SQ is completely judgemental.
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#1431475 - 06/07/08 10:45 PM
Re: Is it impossible to get good SQ with rear speakers?
[Re: Thumper26]
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keep_hope_alive
Snooch to the Nooch
SD I chew on Mike Tyson's ear
Registered: 24/04/07
Posts: 8651
Loc: Quad Cities, IL
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I agree with the advice above and wish to add the following; use your fader to determine the effect they have on your sound. Don't just listen for increased volume - that's a given. Listen for increased detail and clarity. Listen to rear speakers only and see if that sounds as good as the front speakers only. Typically, the off-axis placement of rear speakers gives a "bandpass" response already. If you can play the rear speakers only and feel that the sound quality is good then keep them. If you play rear only and think it sounds bad, then you have your answer. "rear fill" shouldn't degrade the sound quality of the front speakers or overall system. If a speaker sounds bad alone, it still sounds bad when mixed in with other speakers.
Take the time to listen to your system from every seat in the car if you care about your passengers. Typically, rear passengers suffer from having one speaker next to their head playing too loud, and exaggerated bass response. I will adjust my settings depending on who is in the car and where they are at.
The cars i've heard and system setups i've had that seemed to benefit from rear speakers (when a sound stage wasn't a concern) had rear speakers on-axis and not in a factory location. I haven't heard a good system with rear door mounted speakers or rear deck mounted speakers yet. That doesn't mean they don't or can't exist.
I drive a good number of different rental cars each month and almost every time I move the fader to the front, either some or all. It depends on the bass response of the front speakers.
I spent years playing with my fader and with time delay trying to get a "rear fill" that I found acceptable. Now those holes are sealed up and I am much happier.
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#1434007 - 09/07/08 04:08 PM
Re: Is it impossible to get good SQ with rear speakers?
[Re: keep_hope_alive]
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BabyGrand
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Registered: 30/03/00
Posts: 683
Loc: KC
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This is a good thread to read!! Hopefully people will keep reading it!
Thanks!
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#1497267 - 23/09/08 04:51 PM
Re: Is it impossible to get good SQ with rear speakers?
[Re: BabyGrand]
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gmac22
SD Ralph Wiggum
Registered: 13/09/08
Posts: 31
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i use rear speakers because i like my metal loud and loud. dont care about a damn soundstage i just want it loud.
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#1497351 - 23/09/08 08:02 PM
Re: Is it impossible to get good SQ with rear speakers?
[Re: TtownCLS]
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SQrules
SD Ralph Wiggum
Registered: 26/07/08
Posts: 22
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I have heard only two competition cars with rearfill that added to the experience. One was Andy Wehmeyer's Mini from '05 and this past weekend, Mark Eldrige's NASCAR. Amazing ambience with awesome focus up front. It takes special manipulation to pull it off.
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#1497644 - 24/09/08 08:43 AM
Re: Is it impossible to get good SQ with rear speakers?
[Re: SQrules]
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Foam
Team SoundDomain
Registered: 09/06/08
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^Steve Head's truck has rear fill also. I'd like to hear it with the rear off and then back on to see the difference. I couldn't tell it was on though during listening (meaning I didn't hear any information coming from the rear at all).
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#1508815 - 10/10/08 06:17 PM
Re: Is it impossible to get good SQ with rear speakers?
[Re: Scott P]
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James Stanton
SD Ralph Wiggum
Registered: 09/10/08
Posts: 49
Loc: Atlanta, GA
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i think the point is, in a sq competition car, your not supposed to be able to tell that anything is playing behind you, even if there is.
_________________________
James Stanton
MECP Advanced Installer
Sound Sensations of Marietta, GA
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#1509452 - 12/10/08 10:35 PM
Re: Is it impossible to get good SQ with rear speakers?
[Re: Scott P]
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Sadistic_customs
SD Ralph Wiggum
Registered: 15/09/08
Posts: 70
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good reply from keep hope alive. i surprised people just do not give up on spl cars that are not meant for show. seen some good cars the cars that were at the car show that was held by wcc. most look like crap roof cracked from the bass wires hanging all over that were not tucked in to be hidden. was one big mess at the show after the another. and you guys are right it takes a lot of time to get what you want out of a car and it is completely judgmental. and should not be that way. don't get me wrong on this but i got rear stages more for the being submersed in the music kinda like when the t rex attacks the car in Jurassic park you got to have a sound stage that around you not just two speaker up front it more surround sound is what i am after. like you say it's all what the person likes and is after. spl just is not music it's distortion and noise pollution but since we all got are rights to freedom of speech. i guess there will be no end to it. the only reason they do it i think is for attention because when you see the roof flapping at the crack caused from the bass and sour notes i think people just sit back and think what a idiot for cracking there roof. 
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