 Bi amplification
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Joined: Jun 2004
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Since my HK3480 has outputs for two sets of speakers I'm wondering if there would be any improvement in sound if I would use them to bi amplify my M80's or is it necessary to get a separate amp to do so?
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 Re: Bi amplification
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Joined: Jun 2003
Posts: 6,833
axiomite
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axiomite
Joined: Jun 2003
Posts: 6,833 |
There will be no benefit with passive biamping. Neither with the H/K or separate amps. Use the 3480 as is.
Last edited by wid; 09/13/09 11:56 PM.
Rick
"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud
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Re: Bi amplification
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Joined: Jan 2004
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shareholder in the making
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shareholder in the making
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Asher, that would not be true bi-amping. Besides, why do you think you need to bi-amp your 80's anyway? True bi-amping can be costly to get the appropriate equipment, and you would have to remove the passive crossovers in the 80's, which probably is not a good idea.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Bi amplification
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Joined: May 2003
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shareholder in the making
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shareholder in the making
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That would actually be lowering the impedance the M80s presented to the receiver, I believe--a bad idea.
I am the Doctor, and THIS... is my SPOON!
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Re: Bi amplification
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Joined: Jun 2003
Posts: 6,833
axiomite
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axiomite
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No, it would still follow the same impedance curve. It would be no different than having the binding post straps in place. Just removing the straps wouldn't change the characteristics of the speakers.
Rick
"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud
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Re: Bi amplification
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Joined: Feb 2004
Posts: 845
aficionado
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aficionado
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No, it is best to bi-wire........far less costly than bi-amping.  (see Avatar)
LIFE: "Choices, balance, and timing"
(Larryism)
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Re: Bi amplification
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Joined: Jun 2003
Posts: 6,833
axiomite
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axiomite
Joined: Jun 2003
Posts: 6,833 |
Better if ya have M80s though.
Rick
"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud
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Re: Bi amplification
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Joined: Feb 2008
Posts: 859
aficionado
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aficionado
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M80's(2), VP150, QS8's(2), M3's(4)
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Re: Bi amplification
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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shareholder in the making
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hope these guys didn't scare you off Asher. 
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Bi amplification
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
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Arthur(welcome back), your 3480 doesn't have provision even for the phony "bi-amping" that some of the multi-channel receivers advertise, using the back surround channels. The provision in the 3480 is simply an internal splitter to the same two output channels, allowing two sets of speakers to be driven in parallel. There's no electrical difference regardless of which set(or both)of terminals that you use, and it isn't bi-amping.
Actual bi-amping requires separate amplifiers with an external crossover before each amplifier so that each amplifies only a limited frequency range. The internal speaker crossover has to be bypassed.
Your 3480 has a quite powerful amplifier and it's highly unlikely that you're using its full power capacity.
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