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Bronze Member Username: NinemodeAtl, Ga Post Number: 12 Registered: Jul-04 | 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: FishyTamarac, FL USA Post Number: 557 Registered: Sep-04 | 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 |
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Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 4692 Registered: Dec-03 | 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: GlasswolfNorthWest, Michigan USA Post Number: 4693 Registered: Dec-03 | 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. |