"Michael A. Terrell"
Phil Allison wrote:
"klem kedidelhopper"

This question was posed on another group but wasn't really answered.
There is a PA installation with several zones . One zone is a bell
tower which has a separate speaker in it. The speaker is inaccessible.
The DC resistance of that line is 11 ohms. How can an installer
determine if this is a 70, or 25 volt speaker and which tap it may be
set at? Or perhaps it's just an 8 ohm speaker with 3 ohms of cable
resistance added? Is there n easy way to do this without an impedance
bridge?

** One only has to add say a 100 ohm resistor in series with the
speaker -
if the level drops dramatically it is 8 ohms.

An impedance meter is invaluable when troubleshooting line voltage PA
systems - but even that will not tell you if a line matching tranny is 70
V


Sigh.

** ROTFL !!

The Terrell ****wit retard has MISREAD my post - as always.

The "you" in my final sentence above refers to OP's problem - ie testing
just the speaker line with no ability to inspect the tranny or speaker.


..... Phil