Earlier today, a poster asked if there was any way to wire two DVC
subs that have 4-ohm coils in such a way as to present a total
impedance of 2 ohms.  

I said that there wasn't, but thinking more on it, I realized that it
CAN be done, but the method is a little weird - take one 4-ohm voice
coil from each sub, wire them together in parallel to make a 2-ohm
overall load, and connect them to the amp.

What I'm not sure about is how much the power handling capability of a
sub is reduced if you only use one of the two voice coils.  Is the
power-handling cut exactly in half, or is it somewhere between half of
the original rating and the full original rating?  It seems to me it
would depend on whether the original power limit was determined solely
by the coils, or by the rest of the speaker structure as well.

I know that he could get the same 2-ohm load by just using a single
sub and wiring both coils in parallel, but if he used both subs, he
would get the benefit of increased cone area, and the combined power
handling of two subs using a single coil each might be higher than a
single sub using both coils.

I know the best solution to his problem is just to run both subs as a
combined 4-ohm load and call it good, or use different subs if he
*really* wants an overall 2-ohm load, but thinking about the problem
got me curious.

Any thoughts?  Does anyone have experience using only a single coil of
a DVC sub?

Scott Gardner