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dmm tuning

Posted: Tue Oct 14, 2008 5:49 pm
by thedeal7235
I know there was a post on here to calculate, and how to with a dmm, for volts and tuning=can someone point me in the right direction?! I cant seem to find it- and some of the recent posts, talking about measuring the volts across the speaker terminals etc. has me thinking.....-thanx Christian

Posted: Tue Oct 14, 2008 5:58 pm
by mhyde71
i'm sure there's many.. here's one...
http://phoenixphorum.com/how-to-tell-if ... hlight=dmm

Posted: Wed Oct 15, 2008 6:30 am
by maka78
Christian -

http://phoenixphorum.com/problem-x200-4-vt7570-25.html... I just wrote it up for him.

You calculate the voltage by doing Power = Voltage^2/Resistance
--or--
sqrt(Power*Resistance) = Voltage

So sqrt(100*4) = 20V if you have a TI400.2 hooked up to a 4 ohm load (at 100x2).