Thanks for your explanation, Raghu. Quick comment, when you’re calculating the current pushed by the amp based on wattage and impedance, you seem to be using ohms law incorrectly. Am I incorrect in stating that Power=I^2R, not IR, (that equals voltage). So at 70W at 8 ohms you get 2.96 Amps and at 100W at 4ohms you get 5 Amps (not 25 A), no? Intuitively 25 Amps through a typical speaker wire sounds problematic. Am I off base?