Layer 1 - High
loss vibration damping material (same as the Black Hole
Pad), deadens resonance from the cabinet. It is very
strongly bonded to the wall with PSA film for optimum
Layer 2 -
Polyester urethane flexible open cell foam � in. thick.
Thanks to its special vibration-isolation
characteristics, it de-couples the vibrating structure
(the cabinet wall) from the rest of the damping system,
thus optimizing its performance.
Layer 3 - Barrier
septum 1/8 in. thick. Made of limp flexible vinyl
copolymer loaded with non-lead inorganic fillers, it
acts literally as a dead wall, thus isolating the
vibrations in the walls of your cabinet and the
vibrations created inside the enclosure from each other.
Layer 4 -
Polyester urethane foam 1 in. thick, structurally
optimized for acoustical dampening, (specific
permeability, density, stiffness, pore size and shape).
It is highly effective at "soaking-up" maximum sound
energy with minimum thickness.
Layer 5 - Thin
diamond pattern embossing, densified with polyurethane
film surface. This unique surface layer improves
dramatically the performance of the whole acoustical
system, especially the lower mid-bass frequencies, (very
sensitive range where simple acoustical foam becomes