Bridging channels in car amplifiers - diyAudio
Go Back   Home > Forums > General Interest > Everything Else

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 26th June 2002, 08:48 AM   #1
diyAudio Member
 
Join Date: Jun 2002
Location: Tangerang-Indonesia
Default Bridging channels in car amplifiers


Hallo, Anybody can explain me waht the meaning of bridging channels at amplifiers ? I really dont understand.
I would appriciate if someone can explain me. Thank you
  Reply With Quote
Old 26th June 2002, 08:59 AM   #2
diyAudio Member
 
Join Date: Jun 2002
Location: Illinois
Send a message via AIM to PhaseShift
Bridging basicaly means to make the amplifier mono. So you have one channel with twice the power, and a single input.
  Reply With Quote
Old 26th June 2002, 10:03 AM   #3
diyAudio Member
 
Join Date: Nov 2001
Location: Harlowton, MT, USA
And the way this is done is the input on one channel is inverted, so it is 180 degrees out of phase with the other channel. You then take the output from between the two channel's + output terminals, output ground is not used. You get twice the signal voltage this way, so 2 bridged channels delivers twice the power into twice the impedance as 1 channel, and almost 4 times the power into the same impedance (if the amps can handle it). Many or most car amps are already set up to run in bridge mode (the channels are already out of phase, I guess) just by connecting the speaker between the terminals labeled as such. (- doesn't always mean signal ground on those things.)
  Reply With Quote
Old 27th June 2002, 06:55 PM   #4
diyAudio Member
 
Join Date: Dec 2001
You can check out Mr Elliot's article on http://sound.westhost.com/project14.htm

/Henrik
  Reply With Quote
Old 18th October 2005, 07:57 PM   #5
diyAudio Member
 
Join Date: Oct 2005
Send a message via AIM to adidasboy069
Question How Do i Bridge subs

i want to bridge 2 subs on a 2 channel amp how much watts would come out of each subs if it was a 1200 watt amp. it is a sony 1200 watt amp, and i have 2 12" pineer subs, that are 660.

Jesse
Attached Images
File Type: jpg untitled.jpg (31.4 KB, 36 views)
  Reply With Quote
Old 18th October 2005, 08:16 PM   #6
DonoMan is offline DonoMan  United States
diyAudio Member
 
Join Date: Feb 2005
Location: Massachusetts
Send a message via AIM to DonoMan
Since it's a Sony (a bad thing), I figure you'd get about 800W from it.

Edit to note: if it wasn't clear, I meant total, not per.
  Reply With Quote
Old 18th October 2005, 08:30 PM   #7
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
If it's a 2 channel amp, and you have two subs -- one on each channel, you won't gain anything from bridging unless you connect the subs in parallel, but that will fry your amp.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
A question about bridging power amplifiers. pietjers Solid State 1 31st March 2009 10:27 AM
mismatch in bridging 2 channels clovi_kate Solid State 4 19th February 2007 12:00 PM
bridging channels on stereo reciever 9am53 Solid State 10 8th December 2005 03:16 PM
Bridging amplifiers danbmellow Solid State 2 13th October 2004 05:41 PM


New To Site? Need Help?

All times are GMT. The time now is 12:48 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2