Σ-b is a dual 15” arrayable subwoofer tailored to those venues that need more low supplement but all flying. Inverted construction as well as band-pass filter achieve smaller size but less distortion, optimize amplitude and smoother phase response. The cabinet is coated with wear-resistant painting, tailored with two high-power 3” voice coil 15 “neodymium woofers. The shocking strong bass reproduction meets the needs of various venues.
Σ-d is another option of arrayable subwoofer flying with Σ line array speakers. It consists of a 4” voice coil 18” woofer. The cabinet is perfectly designed, providing greater performance, lower cost and more convenience. It is a good choice when more bass supplement but lower cost and flying are essential.
· Biema proprietary aluminum rigging hardware for easy and fast setting up.
· Multiple angles option for precise dispersion.
· Highly noise absorbable materials.
· Flexible application and easy installation.
· Italian –made neodymium drivers.
· Better frequency response and higher resolution.
· Flight case for transportation protection (2pcs each flight case).
· Environmental King Kong painting finishing.
· Super harden steel grille.
· Multi-layer birch laminate construction.
· Best for touring sound, indoor or outdoor medium-size sound reinforcement or permanent installation for multi function halls,stadiums and the like.
Model |
Σ-b |
Frequency response |
40Hz-250Hz |
Drivers |
2x15"(75mm voice coil) |
Sensitivity |
100dB |
Impedance |
4 ohm |
Long-term power(RMS) |
1000W |
Power peak |
4000W |
Maximum SPL |
133dB |
Connector |
2x4-pin Speakon (+1-1 ) |
Product dimensions |
900x640x450mm (WxDxH) |
Shipping dimensions |
1000x690x675mm (WxDxH) |
N.W/G.W |
27.0kg/32.0kg |