Cable Power Loss Calculator    

Input Cable Resistance Per Metre (Ohms) :

Input Total Length of Cable  (Metres) :

Input Loudspeaker Load Impedance (Ohms) :

Input Power Desired at Loudspeaker (W) :

   Signal Loss (dB) =    

Actual Power Required=  

  % Increase Required=   

Input Cable Resistance per metre, Length of cable, Loudspeaker load impedance and Power desired at loudspeaker.

Press the "Calculate" button".

The calculator will then calculate the loss and actual power required
 to produce the desired power at the loudspeaker.        

For typical cable resistances click the info button

Note that the cable length is "there & back". (i.e. a 50m twin cable should be entered as 100m).