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#1
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PMC MB2i SE - Bi-amp or Single amp
I have a pair of PMC MB2 SE on order.
I am trying to decide whether to use a single Bryston 28b3 on each speaker. The 28b3 has dual binding posts, so one cable to the bass, and one cable to the Mid/tweeters. Or do a 7b3 on the bass and a 4B3 bridged on the midrange/tweeter. I already have the 7b3's and 4b3 to do the bi-amp. Has anyone tried bi-amping vs single. |
#2
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single 28's with biwire.
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#3
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Single Amp to Single Cable to binding posts on Speakers here.
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#4
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Why don't you try the 7b3s first and hear if that's enough? Adding the 4b3 you will need an active crossover as well.
Last edited by Pyro; 08-23-2018 at 05:30 AM. |
#5
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Well i am still waiting on the speakers, but good comments here.
I will try the 7b3's first. And just for fun, i am going to run a splitter on my interconnects(no crossover) and try the 7b3's on the woofers and the 4b3's(in bridged mode) on the mids, with a jumper to the tweeters. Too bad i don't have a crossover to try. BTW has anyone heard of any Board or electronic issues with the MB2 SE. Just curious because i had a pair of Ib2i actives and had a number of issues with the boards. I also have a friend who has the Fact 12's and he had to send his speakers back for service due to electronic issues. Just don't want that type of surprise again. |
#6
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What taps off your amps will you be using when bi-amping?
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#7
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Not sure if i understand your question.
The MB2's are 4 ohm. There is no selection on the bryston amps for 8 or 4 ohm. |
#8
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Quote:
From the PMC manual, impedance for MB2SE is 8 ohms. This is what I was asking. Single Amp > HF_MF_LF = Impedance of 8 Ohms Bi-Amp 1st Amp > LF = Impedance of ? Bi-Amp 2nd Amp > MF_HF = Impedance of ? I don't know the answer, that is why I am asking. It seems to me that you would have different impedance ratings when all three drivers (HF_MF_LF) are connected vs. two drivers connected (HF_MF) and one driver (LF) individually connected. I sent an inquiry to my dealer. Last edited by Pyro; 08-12-2018 at 06:57 AM. |
#9
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Please post the results when you get them.
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#10
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I think you will find the MB2se are 8 ohm.
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