Question about component inpedance
Thread Starter
Melting Slicks
Joined: Jan 2002
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From: Atlanta GA
Question about component inpedance
Most component sets, like most speakers, are rated at a 4 ohm impedance.
The question is, is that per speaker, or per set?
If it is per set, then the final load on the amp is 4 ohms per channel.
If it is per speaker, and since there are actually 2 speakers per channel, you would halve the impedance and the amp would actually see a 2 ohm load per channel (assuming the speakers themselves are each 4 ohms).
:confused:
[Modified by leolufse, 3:45 PM 4/16/2003]
The question is, is that per speaker, or per set?
If it is per set, then the final load on the amp is 4 ohms per channel.
If it is per speaker, and since there are actually 2 speakers per channel, you would halve the impedance and the amp would actually see a 2 ohm load per channel (assuming the speakers themselves are each 4 ohms).
:confused:
[Modified by leolufse, 3:45 PM 4/16/2003]
Team Owner
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Re: Question about component inpedance (leolufse)
They are 4-Ohm unless otherwise specified, like the Image Dynamics CXS62's, they are 2-Ohm stereo component sets. The CXS64's are 4-Ohm. Not many companies make 2-Ohm separate systems.
Intermediate
Joined: Mar 2002
Posts: 48
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From: Naugatuck CT
Re: Question about component inpedance (leolufse)
The Blose speakers are 1 ohm impedance. Most stereos are set to drive 4 ohms per channel. I ended-up replacing my speakers when I put in a new stereo. If you had two 4 ohm speakers on one channel (why?) then the stereo would see 2 ohms, but it wants to see 4 ohms. Tweeters usually have filter circuits to direct the highs to the tweeter and lows to the bass speaker, and that circuit should have 4 ohms input impedance when both speakers are plugged-in.
[Modified by stanandsue, 2:35 AM 4/18/2003]
[Modified by stanandsue, 2:35 AM 4/18/2003]
Team Owner
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From: S.W. Ohio. . . . . . NRA Life Member
Re: Question about component inpedance (stanandsue)
crossover networks are designed for specific speaker impedances. If you change a driver with another that has a different impedance, you also change the characteristics of the crossover frequency.
Burning Brakes
Joined: Oct 2001
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From: Dallas City IL
Re: Question about component inpedance (Mike Mercury)
crossover networks are designed for specific speaker impedances. If you change a driver with another that has a different impedance, you also change the characteristics of the crossover frequency.
Melting Slicks
Joined: May 2000
Posts: 2,148
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From: Chandler AZ
Re: Question about component inpedance (leolufse)
The impedance rating of components is per set. With a crossover the drivers are never on at the same time; well actually they overlap at the crossover -3dB point, but they're both down 3dB. The point is the amp pretty much sees 4 ohms.
Now if you hooked up a tweeter and a mid in parallel without a x-over that's different (and stupid.)
Now if you hooked up a tweeter and a mid in parallel without a x-over that's different (and stupid.)
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 2,682
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From: Atlanta GA
Re: Question about component inpedance (gcrouse)
The impedance rating of components is per set. With a crossover the drivers are never on at the same time; well actually they overlap at the crossover -3dB point, but they're both down 3dB. The point is the amp pretty much sees 4 ohms.
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