Hey all, just got into a debate with some guys in the shop (I'm at work now hehe) about bridging a 2 channel amp. One faction says that bridging a 2 channel amp effectively halves the net load-impedance seen by the amp (for example, two 4 ohm subs wired in parallel [2 ohms], and then connected to the bridged terminals of the amp [1 ohm]). The other says that a 4 ohm load is 4 a ohm load regardless of how the amp is connected to it. Any thoughts?
Replies (2)
Buickman94 on 04/28/2004 21:19:29
Heres a good article that clears alot of that up. Rather then try to summerize it, ill just post the link...
http://www.bcae1.com/bridging.htm
swez on 04/29/2004 09:48:18
This article is very in depth and you (your audience) will need a very good understanding of amplifier technology and AC voltage characteristics to make much sense of it.
The guys in the 4 ohm load, is a 4 ohm load camp, are on track. The guys who try to bridge a non-HC amp into 2 ohm loads are ususally the ones who blow their output transistors when bridging traditional 2 channel amps to MONO. Too much current will flow through the output transistors (as the load is too low @ 2 ohms), they will overheat and eventually burn out.
HC amps (High Current) are designed for ultra low impedances and can take lower than 4 ohm loads when bridged. These are generally high end SPL amps, designed for SPL Comps. They are not cheap and they consume a large amount of current, compared to the output watts they can deliver at ultra low ohmic loads. These amps are not for everybody.
Swez
Replies (2)
Buickman94 on 04/28/2004 21:19:29
Heres a good article that clears alot of that up. Rather then try to summerize it, ill just post the link...
http://www.bcae1.com/bridging.htm
swez on 04/29/2004 09:48:18
This article is very in depth and you (your audience) will need a very good understanding of amplifier technology and AC voltage characteristics to make much sense of it.
The guys in the 4 ohm load, is a 4 ohm load camp, are on track. The guys who try to bridge a non-HC amp into 2 ohm loads are ususally the ones who blow their output transistors when bridging traditional 2 channel amps to MONO. Too much current will flow through the output transistors (as the load is too low @ 2 ohms), they will overheat and eventually burn out.
HC amps (High Current) are designed for ultra low impedances and can take lower than 4 ohm loads when bridged. These are generally high end SPL amps, designed for SPL Comps. They are not cheap and they consume a large amount of current, compared to the output watts they can deliver at ultra low ohmic loads. These amps are not for everybody.
Swez
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