 Impedance graph for m80's?
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Joined: Jan 2008
Posts: 175
veteran
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OP
veteran
Joined: Jan 2008
Posts: 175 |
has anyone seen a impedance graph for the 80's?? just curious 
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Re: Impedance graph for m80's?
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Joined: Jan 2004
Posts: 13,852 Likes: 15
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,852 Likes: 15 |
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Impedance graph for m80's...with XPA2
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Joined: Jan 2008
Posts: 175
veteran
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OP
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"Soon after that Emo tech support emailed me back and reported that he had talked to an Axiom engineer earlier today who said that the M80's could dip as low as 2.6ohm if driven hard... and since the XPA-2 design is not current limiting, the amp would try to push 800 watts, which would kick the protect circuit."
this is a quote from the emotiva lounge...
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Re: Impedance graph for m80's...with XPA2
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Joined: Jun 2003
Posts: 6,833
axiomite
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axiomite
Joined: Jun 2003
Posts: 6,833 |
Who was the engineer? I don't think the impedance would change due to more power being applied.
Rick
"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud
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Re: Impedance graph for m80's...with XPA2
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Joined: Jun 2003
Posts: 6,833
axiomite
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axiomite
Joined: Jun 2003
Posts: 6,833 |
Rick
"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud
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Re: Impedance graph for m80's...with XPA2
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Joined: Jan 2004
Posts: 13,852 Likes: 15
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,852 Likes: 15 |
I've dealt with Emotiva, as most of you know. I can about guarantee you that noone from their company would have taken the time to call Axiom, they only have 2-3 people that answer the phone, Lonnie, Bob, and the owner.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Impedance graph for m80's...with XPA2
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Joined: Mar 2008
Posts: 1,378
connoisseur
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connoisseur
Joined: Mar 2008
Posts: 1,378 |
As an Electrical Engineer, I can tell you that the impedance of a load does not dip on higher power (read current or voltage) supplied. Unless of course something fried out in your system and you short circuited.
Impedance is a combination of the "real" load (resistance in the x-axis) and the "imaginary" load (reactance in the y-axis). It does not change as supplied power changes.
LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7
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Re: Impedance graph for m80's...with XPA2
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Joined: Dec 2007
Posts: 7,786
axiomite
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axiomite
Joined: Dec 2007
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I guess there is just a lot more reactance over at Emotiva. 
Fred
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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
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Re: Impedance graph for m80's...with XPA2
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
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Chet, as has already been pointed out, no electrical engineer familiar with speaker technology would claim that a speaker being "driven hard" could in some way lower its impedance. So the quote from Emo tech support appears to be pure BS.
-----------------------------------
Enjoy the music, not the equipment.
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