you can use OHM's LAW and POWER LAW.hi,
Q: What should be the correct power transformer rating for 100watt 4 ohm amplifier? FORMULA.
Q: 2x18" 1000watt loudspeaker, what should be the correct power amplifier in order to drive those speakers. FORMULA.
thanks
No.As audioguru mentioned, consider the efficiency.
up to 50% of your power rating will be lost in biasing if it is a class A amplifier.
Are you sure?No.
A class-A amplifier wastes 500% of its output power at clipping.
A class-AB amplifier wastes 50% of its output power at clipping.
A class-A amplifier wastes 500% of its max output power when it is idle.
A class-AB amplifier wastes a small amount of power when it is idle.
500% seems a bit harsh:Elliot Sound Products have a class-A amplifier project that dissipates 5 times as much power as its output power.
Could it be that valve amps are ridiculously inefficient? I've only been thinking of transistor types.Elliot Sound Products have a class-A amplifier project that dissipates 5 times as much power as its output power.