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10-11-2006, 09:24 AM
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#1
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Low Bitrate
Join Date: Oct 2005
Posts: 84
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Invert Phase by Reversing +/- Terminals?
Hey, I understand the concept of just simply reversing the terminal connections to invert the phase on my sub, but if I was wiring it as such:
I would still ultimatly just plug the + into my amps - and vice versa, right? Or do I need to reverse that wiring diagram as well? Thanks.
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2004 Ford Mustang
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10-11-2006, 09:52 AM
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#2
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Constant Bitrate
Join Date: Apr 2005
Location: UK
Posts: 202
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if you reversed it on the voice coil connections it would cancel it out, you would be using the - cable on all + terminals so it would be the same as wiring it up normally. just change it at the amp end.
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Audio: Alpine PXA-H700 DSP, Rockford Fosgate Punch P4004 amp, P152S Comps and Alpine SWR-1242D Sub
PC: BU-303, SB Audigy 2 ZS, Jetway 1.5Ghz, Cubid case, M2-ATX PSU, New 700tsv
Toys:K8055 relay board, Elmscan OBDII
Type-R Mini
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10-11-2006, 09:54 AM
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#3
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FLAC
Join Date: Jul 2001
Posts: 1,109
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Quote:
just change it at the amp end.
x2
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10-11-2006, 10:13 AM
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#4
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Low Bitrate
Join Date: Oct 2006
Location: St. Louis, MO
Posts: 77
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You do realize what reversing the phase will do to your sub right?
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10-11-2006, 10:20 AM
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#5
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Constant Bitrate
Join Date: Apr 2005
Location: UK
Posts: 202
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nothing ?
__________________
Audio: Alpine PXA-H700 DSP, Rockford Fosgate Punch P4004 amp, P152S Comps and Alpine SWR-1242D Sub
PC: BU-303, SB Audigy 2 ZS, Jetway 1.5Ghz, Cubid case, M2-ATX PSU, New 700tsv
Toys:K8055 relay board, Elmscan OBDII
Type-R Mini
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10-11-2006, 10:24 AM
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#6
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FLAC
Join Date: May 2005
Location: Conyers, GA
Posts: 1,417
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Well..if the sub is designed to compress the air in a certain way (Ie, compress the air in a sealed box), then having the sub reverse phase could potentially nix part of its usefulness, because it won't be compressing the air correctly.
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10-11-2006, 10:25 AM
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#7
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Constant Bitrate
Join Date: Apr 2005
Location: UK
Posts: 202
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but if you do everything properly then running reversed isnt going to cause any problems.
__________________
Audio: Alpine PXA-H700 DSP, Rockford Fosgate Punch P4004 amp, P152S Comps and Alpine SWR-1242D Sub
PC: BU-303, SB Audigy 2 ZS, Jetway 1.5Ghz, Cubid case, M2-ATX PSU, New 700tsv
Toys:K8055 relay board, Elmscan OBDII
Type-R Mini
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10-11-2006, 10:52 AM
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#8
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Low Bitrate
Join Date: Oct 2006
Location: St. Louis, MO
Posts: 77
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It can still cause problems...It'll push air when it's supposed to be pulling and vice versa, so when there's a bass hit, it can sound hollow or off beat.
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10-11-2006, 10:55 AM
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#9
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Low Bitrate
Join Date: Oct 2005
Posts: 84
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If the ***-end of the speaker is outside the box, then I have to invert the phase, which is exactly what I'm doing.
__________________
2004 Ford Mustang
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10-11-2006, 11:26 AM
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#10
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FLAC
Join Date: Jul 2001
Posts: 1,109
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Why does everybody second guess the guy without asking what he's doing?
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10-11-2006, 11:39 AM
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#11
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Low Bitrate
Join Date: Oct 2005
Posts: 84
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Thank you.
And thanks for the simple help above, I just couldn't get it past my mind that it'd be that easy to just swap the terminals with this setup. Needed some backup before I went shoving wires into things. Haha, I'll have pics on the setup probably later tonite, I spent the entire weekend on this beast.
__________________
2004 Ford Mustang
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10-11-2006, 01:10 PM
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#12
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Low Bitrate
Join Date: Oct 2006
Location: St. Louis, MO
Posts: 77
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Quote: Originally Posted by Shadow 
Why does everybody second guess the guy without asking what he's doing?
Nobody was 2nd guessing...I just wanted to make sure he knew what happens when phase is switched.
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10-11-2006, 01:23 PM
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#13
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MySQL Error
Join Date: Dec 2004
Location: Los Angeles Ca
Posts: 3,675
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Quote: Originally Posted by Shadow 
Why does everybody second guess the guy without asking what he's doing?
i think they are just trying to be helpfull. no fault in that.
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