Originally Posted by TenTonBass
How are those Crown Amps so light for the power they put out?
Switchmode power supplies. I've had them on the test bench, and frankly the biggest problem is finding an outlet to plug them into that can provide enough continuous power for a bench test. I ended up pulling a 30 amp 230 volt circuit.
The other interesting thing is that several amps from the same series with an at least 2:1 difference in power rating are visibly identical, inside and out. But the test bench says nobody is lying.
This same technology when applied to home gear will have similar benefits - much easier to ship and install.