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Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker

Does running this amp in bridge mode mean each channel will see half the impedance i.e 2 Ohm each when connected to a 4 Ohm speaker.  If so will this cause a problem when the speaker dips to 3 or 2 ohms?. 

Anyone running Benchmark AHB2 in bridged mode with low impedance speakers?. 
geek101
d2girls's avatar
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d2girls
1,029 posts
 
didnt thx design the amplification and power stage of this amp
geek101 OP
284 posts
 
@onhwy61 I only have experience in running it in stereo mode. I am looking and specs and reviews from others to consider the pros and cons.

@d2girls from what I heard the feed forward error correction is THX. I am not sure if they designed the amplification and power stage.
georgehifi's avatar
georgehifi
10,312 posts
 
Are you speculating, or do you have actual experience with the amp in different configurations?
If you have a technical background and understand what happens when you bridge an amp, you wouldn’t be asking this question.

Cheers George
twoleftears's avatar
twoleftears
5,318 posts
 
And of course all topologies of amps behave identically when bridged, and no amps are ever specifically designed to be bridged.
georgehifi's avatar
georgehifi
10,312 posts
 
geek101 OP

BTW geek101 OP your Legacy Aeris I just noticed are 94db!! why do you need more than one AHB2, one is plenty and will do the 4ohm load on it’s ear, and not have any disadvantages of it bridged.

A bridged one beside all the cons I mentioned, will be looking at a 2ohm load and if that speaker has high -phase angles at 2ohm impedance dips, it could be even lower as seen by the amp.

Cheers George
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