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Thread: Bridging |
    
Bronze Member Username: Ninemode
Atl,
Ga
Post Number: 12
Registered: Jul-04
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| Posted on Friday, October 15, 2004 - 11:57 pm: |
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here is a ?, if you have one s.v.c. 4ohm sub and bridge a 2 channel amp to it the amp really sees a 2 ohm load which isnt good for most amps now that i know, what if its a high current amp that runs in stereo or mono, say audiobahn's a2200hct, does that rule still apply? |
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Silver Member Username: Fishy
Tamarac,
FL
USA
Post Number: 557
Registered: Sep-04
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| Posted on Saturday, October 16, 2004 - 08:43 am: |
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High current amps are generally designed to power lower impedance loads and most good "regular" 2 channels do just fine at 2 ohm(4 ohm bridged). Assuming honest specs I've always just looked at the power ratings at 2 ohms to get an idea of how an amp will perform. If it develops twice the power than at 4 ohms then I feel confident running it at that level.
But specs can lie.
-Fishy |
Gold Member Username: Glasswolf
NorthWest,
Michigan
USA
Post Number: 4692
Registered: Dec-03
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| Posted on Saturday, October 16, 2004 - 09:48 am: |
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actually a 4 ohm load on a bridged 2-channel amp is the same load as a 2 ohm load if the amp isn't bridged (in stereo mode.)
that's totally acceptable.
in fact you jsut don't want to go *below* a 4 ohm load (speaker) on a bridged amplifier.
more in bridging here:
http://www.bcae1.com/bridging.htm
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Gold Member Username: Glasswolf
NorthWest,
Michigan
USA
Post Number: 4693
Registered: Dec-03
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| Posted on Saturday, October 16, 2004 - 09:49 am: |
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on a side note, as long as you stay within the rated specs of the amplifier in question, you're fine.
most amps are made to be stable to 2 ohms (4 ohms bridged if they are multi0channel and support bridged mode.)
there are a few amplifiers that are stable to 1 ohm, 0.5 ohms, or even as low as 0.33 ohms, but as you noted these are high current amplifiers, and will be advertised as such in their specs.
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