Logitech z560 satellite impedance.

So

Lifer
Jul 2, 2001
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Okay guys, either Google has failed me or I have failed at google. I'm trying to find out the input impedance of my old z560's satellites. Not the input impedance which is specified at >5.5k, but the actual impedance of the speakers. Why you ask? Well, I busted (seriously destroyed by a drop) the cone of one of the satellites a while back and I want to see if I can replace two of them with a pair of bookshelf speakers (since I'm operating in 2.1 ATM). IIRC, you can't just measure the DC resistance of a speaker, since it's an inductive load, so my multimeter is useless. :(

Thoughts guys?
 

Heisenberg

Lifer
Dec 21, 2001
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Well you could do it if you have a function generator...
You're probably good to just hook them up and use them if they sound okay. Impedance matching is really just about efficiency of power transfer. As long as you don't run them super loud, it probably won't be a problem.
 

So

Lifer
Jul 2, 2001
25,923
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Perfect, thanks Nano!

Heisenberg, you're right, but I figured if I was gonna do it, I might as well do it right.
 

YOyoYOhowsDAjello

Moderator<br>A/V & Home Theater<br>Elite member
Aug 6, 2001
31,204
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Those are 8 ohm speakers afaik.

Keep in mind that with the set crossover point of the logitech sub that you're going to be limiting the benefit you'll get from better speakers. You'll certainly be able to do better for the high frequencies, but better bass extension is going to be mostly wasted. Of course there's more to speakers than just that ;)

Getting a pair of 8 ohm bookshelf speakers should work fine.

EDIT: (I've done it myself with 8 ohm bookshelf speakers btw)
 

Heisenberg

Lifer
Dec 21, 2001
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Originally posted by: So
Perfect, thanks Nano!

Heisenberg, you're right, but I figured if I was gonna do it, I might as well do it right.
Ahh, I see. I misunderstood you then. My bad. :)