Stiff, yet light aluminium cone and low loss rubber surround show no sign of the
familiar 500-1500 Hz cone edge resonance and distortion associated with soft cones.

High temperature voice coil wound on an aluminium voice coil former gives high
power handling capacity.

Bullet shaped phase plug reduces compression due to temperature variations in the
voice coil, avoids resonance problems which would occur in the volume between the
dust cap and the pole piece and increases the long term power handling
capacity.

Extra large magnet provides high efficiency and low Q.

This unit may be used in very small two-way ported systems producing an
astonishingly deep bass and a clean, neutral midrange.