Wayne Parham Messages: 18787 Registered: January 2001
Illuminati (33rd Degree)
I can't see having any worries below 400 watts. If you put half that much power into the tweeter as a pure sine wave within its passband, that would smoke it but the energy distribution is way down at tweeter frequencies for music, voice, etc. For that reason, the bulbs don't light up until you're really pushing the power.