01-06-07: JoefamaI believe this is a spec for current output of the amp, not current draw.
Tvad -
Threshold SA/4e specs are clearly stated in print in both in the owners operation manual and service manual. Also even states in my original Threshold brochures.
"30 amps continuous and 130 amps peak".
To calculate current draw, Watts=Volts/Amps. So, divide the maximum power consumption of your amp (wattage) by 120 volts, and you will have the current draw of the amplifier.
As an example, the Pass Labs X150 has max power consumption of 600 watts. 600 watts/120 volts = 5 amps.
Try this for your amp.
I found the formula in this article.
...and this paragraph:
In the U.S., computers get plugged into 120-volt circuits. So we'd divide our 5,000W by 120 volts for a total power consumption of 41.6 amps.