User Manual

Power Handling and Xmax
These are thermal power handling numbers.
These should be used as a guide in
choosing an amplifier.
A 500 W RMS amplifier is 4x the power
handling rating of the amplifier—too much
power.
Depending on the box and the customer,
you may be able to use an amplifier that
provides 2x or 3x the RMS power handling
3
provides 2x or 3x the RMS power handling
rating.
If you want to design your own box using
your own computer modeling program,
Thiele and Small parameters are included
Carefully consider Xmax (maximum
excursion) when you choose your box. It’s
OK to exceed Xmax by about 20 percent
Xmax is the distance the motor can drive the
cone. If you apply much more power than the
amount required to reach Xmax, the woofer will be
in danger.