What's your budget? Is the power source directly connected to the wall outlet or a filtered power source? Are we talking incandescent, halogen, CFL or LED? All these factors determine the number of Audiophiles involved.
How many audiophiles do you need to change a lightbulb?
Only one.
But ten to discuss whether you need a 60W or a 100W bulb.
Ten more to discuss the relative merits of screw-in vs. bayonet fixture.
Ten more to discuss the relative merits of LED and halogen.
Ten more...…………………..