Re: ROTEL RECEIVER not RATED FOR 4 Ohm?,
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Joined: Jan 2002
Posts: 3,270
connoisseur
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connoisseur
Joined: Jan 2002
Posts: 3,270 |
Hi Rick and all,
As I explained in a PM to Rick, impedance ratings by the designer are "nominal"--arrived at by eyeballing the overall impedance curve and picking a number that is kind of an average. Since the M80 impedance curve does touch 4 ohms at several places, and remains below 8 ohms up to nearly 1 kHz, for the sake of clarity, Axiom refers to the M8os as "4-ohm speakers". Actually, Ian Colquhoun, the M80s designer says they are closer to 5 ohms.
The point is that in the frequency range where the greatest amount of current is drawn, the M80s' impedance is at 4 ohms or slightly above that figure, so that's why we give it a nominal impedance rating of 5 ohms. To avoid confusion in the specs we call it 4 ohms.
Regards, Alan
Alan Lofft, Axiom Resident Expert (Retired)
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Re: ROTEL RECEIVER not RATED FOR 4 Ohm?,
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Aww, you could call them 5 ohms and give people another random reason to hate them!
I am the Doctor, and THIS... is my SPOON!
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Re: ROTEL RECEIVER not RATED FOR 4 Ohm?,
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
I don't see what chart John is looking at.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: ROTEL RECEIVER not RATED FOR 4 Ohm?,
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Joined: Oct 2003
Posts: 130
veteran
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veteran
Joined: Oct 2003
Posts: 130 |
Aww, you could call them 5 ohms and give people another random reason to hate them! LMAO!!
2 = M60,4 = QS8's,1 = VP150,1 = EP350,1 = EP500 HK247 Optoma HD70,110" DIY screen Xbox360 & PS3
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Re: ROTEL RECEIVER not RATED FOR 4 Ohm?,
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Joined: Dec 2008
Posts: 6,928
axiomite
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axiomite
Joined: Dec 2008
Posts: 6,928 |
So, to conclude...the M80s are considered 4(5?) ohm speakers, for the most part, because they touch 4 ohms at lower freq's where they draw more power? If the charts showed they dropped to 4 ohms but much higher up in the fq's, then could they be considered 6-8 ohm speakers? If it is an average, wouldn't/shouldn't the lower fq's take precedent over higher ones?
Half of communication is listening. You can't listen with your mouth.
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Re: ROTEL RECEIVER not RATED FOR 4 Ohm?,
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Joined: Jan 2002
Posts: 3,270
connoisseur
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connoisseur
Joined: Jan 2002
Posts: 3,270 |
Adrian,
Yes, yes, and yes.
Alan
Alan Lofft, Axiom Resident Expert (Retired)
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Re: ROTEL RECEIVER not RATED FOR 4 Ohm?,
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Joined: Oct 2006
Posts: 6,955
axiomite
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axiomite
Joined: Oct 2006
Posts: 6,955 |
Do you think you should be shouting Adrian's name followed by "Yes, Yes, Yes" ?
With great power comes Awesome irresponsibility.
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Re: ROTEL RECEIVER not RATED FOR 4 Ohm?,
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Joined: Dec 2008
Posts: 6,928
axiomite
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axiomite
Joined: Dec 2008
Posts: 6,928 |
Half of communication is listening. You can't listen with your mouth.
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