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What's Going On [message #51186] Tue, 19 June 2007 12:31 Go to next message
Beltway Bandit is currently offline  Beltway Bandit
Messages: 8
Registered: May 2009
Esquire
So I'm looking at the curves for the Alpha 10 and the Vifa tweeter in the 2pi Studio and Note that the Aplha 10 has an 8 ohm impedance and the tweeter has a 4 ohm nominal. I'm confused as to why there is a difference in impedances. What is happening electrically and why? Does this somehow induce a taper in the upper frequencies?

Re: What's Going On [message #51188 is a reply to message #51186] Tue, 19 June 2007 15:09 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18789
Registered: January 2001
Illuminati (33rd Degree)

That's right. System impedance will drop gradually from 8Ω to 4Ω above 1kHz. It also has some slight peaks in the bottom octave due to system resonance. All in all, the two π speaker has a benign impedance curve and is a very easy load for an amplifier to drive.


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