Impedance????

Well, impedance is different at each input and output of each component of your system so there is no "system" impedance. To measure impedance of your speakers or input/output of a component, the only accurate way is to use an oscilloscope and sweep the frequencies from DC to 50kHz while in Bode plot mode.

An ohm meter will only give you the resistance and not the impedance - thus it will do this only for DC and not for any other frequency so its informational value is very limited.

Arthur

I am biamping 2 nad2200 amps to a set of Paradigm monitor 11's V.3.

I want to make sure I am at 8 ohm coming to the speaker.

"I want to make sure I am at 8 ohm coming to the speaker." You can't because no normal amp is. Typically, the amp has a much lower output impedance than the rated load. Usually by a couple of orders of magnitude.

Now, if you meant to determine the load that the biamped speakers represent, you can estimate the LF load with a DC ohm-meter since it will measure a bit less than the AC impedance. For the HF load, however, there's undoubtedbly a DC block and you would have to get an AF signal and an AC meter, at the very least.

Kal

ok, I have the amp set to 8 ohm and the speakers are rated at 8 ohm, but does the fact that I have the Amp/speaker set up vertical(v/s active) biamping change the impedence v/s 1 amp run to both speakers?

I started this when Diewallen inquired about vertically biamping. My rhetorical question was basically "If you use one preamp output through a double terminated (split?) interconnect into multiple amp inputs duplicating the signal into both channels, does it change the impedance the preamp sees enough to affect the outcome?" I didn't know the answer, but thought it might.

David (Diewallen) is this correct, or are you asking something else?

Jim S.