Originally Posted by GoBears86
So, to get the same volume level out of a speaker that can handle more power (compared to one that handles less), I need a more powerful amp? Example: 150 W (NHT Classic 3) vs 75 W (NHT Superzero 2.0) speakers. To get the same level from each speaker, the Classic 3 will require more power? Or will it be the same amount of power at that level, but that Classic 3 can go much louder?
"Power handling" is a generally meaningless specification indicative of nothing, least of all how loudly a speaker will play (although they can be compared if both speakers are from the same reputable manufacturer). You're looking for the "sensitivity" spec.
The Classic 3 is given as :Sensitivity - 87dB (2.83v@1m).
The Superzero as: Sensitivity - 86dB
This means the Classic 3 will play 1dB louder with the same power input. A very small difference.
But these are both relatively inefficient speakers, being small, sealed-cabinet (acoustic suspension) designs, which typically need a lot of power.
Sensitivities of 89-90dB are common. For example, I use Definitive Technology ProMonitor 1000s with my 1020. Their sensitivity is 89dB. Compare them to the Superzero and you find a difference of 3dB -- meaning that at the same volume level, the PM1000 only needs half as much power as the Superzero, in theory.
"Power handling" doesn't enter into it. If from a reputable company like NHT, it tells you to be careful turning these very small speakers up too loud when using a high-powered (over 75WPC) amplifier, and that the Classic 3 can go louder if you have more amplifier power available. But don't try comparing that spec between brands, which may use very different measuring sticks. There is no standard for a "power-handling" spec. Watts measured how? For how long?
You need to drop "power handling" from your AV vocabulary.