Kevin McMurtrie wrote:
Eeyore wrote:
Kevin McMurtrie wrote:
Since the lighting quality and life of the bulb doesn't matter one bit,
speakers usually have the very cheapest bulbs protecting them.
You should see the price of those 55W 24V truck headlight bulbs !
All bets are off for pro-gear 
A comparable naked projector bulb would regulate fine if you could find
a brand that has solderable leads. They're usually an alloy that
doesn't conduct at low voltages and resists soldering because of a
durable oxide layer.
Sylvania actually make a specialist range of bulbs for this purpose as used by JBL
and Eminence in their crossovers to name a couple I know of
http://www.sylvaniaautocatalog.com/s.../pro_other.asp
See HPCCR.
Graham