Ptss, the amount of power delivered into a resistive load is:
P = (I squared) x R
where P = power (in watts)
I = current (in amperes)
R = resistance (in ohms)
An alternative formula which produces the same result is:
P = (E squared)/R
where E = voltage (in volts)
Both of those formulas can be mathematically derived from the definition of power (E x I for a resistive load) in combination with Ohm's Law (I = E/R).
Also, the reason Ralph referred to a 600 watt output section is that most of the amplifiers which have been discussed are rated as being able to continuously supply around 600 to 700 watts or so into a 2 ohm load.
Regards,
-- Al
