Bridging

zorb_rules · 25th June 2004, 08:04 PM

Hey I got told before to bridge my 4 channel amp...As I the slowest must techinically unadvanced person in the world how the heck do I do it??

sreten · 25th June 2004, 08:56 PM

Well bridging will convert your 4 channel amplifier into 2 channels
so if your using all four channels not particularly sensible advice.

Your 4 channel amplifier may or may not allow bridging. If each
channel already is bridged output, you cannot bridge these.

sreten.

baggystevo82 · 26th June 2004, 09:27 AM

Hello,
I read your other thread too here . In that case (what max advised) was to run it 3-channel. You join up two of the channels (youll have to check the manual on this one, might be jumpers, or switches, or just some method of hooking up both channels to run the same) to get more power. Then as max said run the sub off these 2 bridged channels, leaving the 2 unaltered channels free for your main left/right speakers. The main thing to whatch with bridging is that the minimum speaker impedance requirement will most likely double, so if one channel can only cope with a minimum of 2ohms, then 2 channels bridged will only cope with 4ohms, which puts the paralleled sub idea out the window...in this case. If each of your channels is ok down to one ohm, then that should work fine as bridged these will work ok into 2ohms (which is the effective impedance from your 2 4ohm subs wired in parallel). If your amp can't do this I'd run each sub off its own channel, and split the sub out from the head unit into two somehow (im not big on car audio so i cant tell you how to do this best).
Hope that helps a bit,
Steve

zorb_rules · 28th June 2004, 11:01 AM

Thanks mate yeah ive re-read through my amp book and all. and it looks like it should be fine. Ill be sure to let you know how it goes and if I come across any problems. Also I was wondering will I be better running the 6X9's off the amo of the 6inch cones and the front?

25th June 2004, 08:04 PM	#1
zorb_rules diyAudio Member Join Date: Jun 2004 Location: australia	Bridging Hey I got told before to bridge my 4 channel amp...As I the slowest must techinically unadvanced person in the world how the heck do I do it??

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25th June 2004, 08:56 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Well bridging will convert your 4 channel amplifier into 2 channels so if your using all four channels not particularly sensible advice. Your 4 channel amplifier may or may not allow bridging. If each channel already is bridged output, you cannot bridge these. sreten.

26th June 2004, 09:27 AM	#3
baggystevo82 diyAudio Member Join Date: Dec 2003 Location: Herefordshire	Hello, I read your other thread too here . In that case (what max advised) was to run it 3-channel. You join up two of the channels (youll have to check the manual on this one, might be jumpers, or switches, or just some method of hooking up both channels to run the same) to get more power. Then as max said run the sub off these 2 bridged channels, leaving the 2 unaltered channels free for your main left/right speakers. The main thing to whatch with bridging is that the minimum speaker impedance requirement will most likely double, so if one channel can only cope with a minimum of 2ohms, then 2 channels bridged will only cope with 4ohms, which puts the paralleled sub idea out the window...in this case. If each of your channels is ok down to one ohm, then that should work fine as bridged these will work ok into 2ohms (which is the effective impedance from your 2 4ohm subs wired in parallel). If your amp can't do this I'd run each sub off its own channel, and split the sub out from the head unit into two somehow (im not big on car audio so i cant tell you how to do this best). Hope that helps a bit, Steve

28th June 2004, 11:01 AM	#4
zorb_rules diyAudio Member Join Date: Jun 2004 Location: australia	Thanks mate yeah ive re-read through my amp book and all. and it looks like it should be fine. Ill be sure to let you know how it goes and if I come across any problems. Also I was wondering will I be better running the 6X9's off the amo of the 6inch cones and the front?