A double-wall sealed enclosure tuned for the best impulse response.Internal enclosure of cylindrical shape made of a dense cellulose tube. Just as in the case of a submarine, a "cigar-like" shape can resist much higher pressure than a rectangular shape. In addition, due to this shape there are no standing waves.External enclosure of 13/16" (20mm) MDF. Dual layer, pyramid-shaped back wall to prevent any possible resonance.The space between both walls can be filled with sand or lead shot thereby stiffening the enclosure to concrete-like level.Specially selected 15" woofer with dual voice coils delivers a much better damping factor - a key parameter for a subwoofer.Dual, all brass, gold plated posts, accept banana plugs or up to 2 AWG wires.Filled with Belgian foam that is custom designed for cell size and density, for highest precision and bass extention.
Frequency response: Room dependant. Typically flat to 23 Hz.
SPL: 90 dB 1W/1m
Impedance: 4/8/16 Ohms
Dimensions: 18" H x 18"W x 19.4" D (45,6cm x 45,6cm x 49,3cm
Weight: 64.4 lbs (29 kg)
