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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
geek101 OP
284 posts
 
All issues with AHB2 are settled! as far as I am concerned. Let us not continue this thread and discuss things not relevant to technical issues of AHB2.

I will report back if I try them in bridged mode and feel like it. Thanks everyone. 
ramtubes's avatar
ramtubes
460 posts
 
@geek101 

Thanks, its been fun. My well considered advice:

ONE AMP PER SPEAKER, BI WIRED, BI AMPED. 

Bridged, no, no, no
twoleftears's avatar
twoleftears
5,318 posts
 

I’ll leave the technical discussion to the boffins. The point I was trying to make, as I said before, was that, by all accounts, Benchmark seems actively to promote the use of their amp in bridged form. Why else would they send pairs of them out to reviewers? Surely this indicates--perhaps against the electronic engineering evidence--that they have confidence in their product performing well in bridged form under most circumstances.

BTW, am I right in noting that there has been little discussion here, until just now, of vertical or horizontal bi-amping, which are other possibilities, no?

clio09
3,357 posts
 
You are correct, other than the recommendation by Roger, we haven't really had any discussion on that. Vertical bi-amping is the way I roll these days and see no reason to go back, regardless of which pair of speakers I am using. I think using two Benchmark amps in that manner will yield very good results.
onhwy61's avatar
onhwy61
5,235 posts
 
The OP has Legacy Aeris loudspeakers (a design that requires bi-amping) which according to at least one Legacy dealer really likes high power amps.  The OP wants to know if the Benchmarks in bridged/mono mode will have trouble driving the Aeris.  The responses from people with actual experience using the Benchmark in mono configuration say that the amp should perform well.  Other people with no experience with the amp beg to differ.  The OP decides to go with the mono Benchmarks.  The outcome really shouldn't come as a surprise being that Audiogon is primarily a subjectivist audio site.  Experience trumps speculation, even when the speculation comes from informed sources.

I hope the OP will let us know of his experience with the bridged Benchmarks.
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