How many audiophiles do you need to change a lightbulb?

Real audiophiles don't need the extra radiation from the lightbulb interfering with their setup or their eyesight taking away some concentration from their hearing.

I have super efficient lamps. Therefore I only need 1watt bulbs. 

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. 

It actually only takes one knowledgeable audiophile with some experience and technical skills. It's not too difficult. But after the bulb is installed, burnt in, and calibrated you'll need at least two people to do room treatments and place infrared traps in the corners.

You old HEA losers are living in the past, man. The New Paradigm hipster knows the lighting industry took a wrong turn in the early-90’s, and that one’s lighting fixtures---and the Class D bulbs that are installed in them---must now be the new low mass, tunable type. They allow YOU to tune the light in YOUR listening room to the lumen and color temperature YOU want, to achieve the look YOU prefer. It’s all subjective; forget about sunlight being any kind of standard---that’s The Old Paradigm. It went out with black lights.