- High-performance LF system for medium to larger applications
- Neodymium dual-coil 18” driver with lowest possible distortion
- Flow-Vent™ port design for increased, non-compressed output
- Designed for stacked applications in tandem with GR20 point-source system
- SIS™ pre-wired for very high system damping and further reduced distortion
- Front-positioned NL4 connector for easy cardioid connection
Product description
The GB181 is the dedicated low-frequency extension to the G-series full-range systems. It can also be combined with any other Alcons pro-ribbon system, in both permanent and portable applications.
The front-loaded GB181 delivers highly accurate bass and sub-bass reproduction with maximum output and minimum distortion, achieved through the long excursion 18” transducer. This new-generation woofer features a large dual 4.5” voice-coil Neodymium motor, providing significantly extended excursion* while maintaining high sensitivity. The driver has been engineered with specific focus on minimizing distortion. *(excursion not included in SPLpeak specification.)
The Flow-Vent™ port design provides maximum breathing capacity, further increases overall output while reducing port compression.
The GB181 can be deployed in different ways: horizontally groundstacked, with a top cabinet (GR20 i.e.) on a pole in the M20 stand flange; Vertically groundstacked, even in multiples, with the GR20 stacked in the speaker-specific recess. Through the front-positioned extra NL4 connector, also a cardioid-stacked array is easily possible, providing maximum rearward LF rejection.
For optimal system performance, the GB181 is powered and controlled by the ALC amplified loudspeaker controller. Driven by the ALC, the GB181 offers maximum operational headroom, consistent audio quality, and long-term reliability.
The Signal Integrity Sensing™ pre-wiring provides complete cable and connector compensation between the GB181 and an SIS™ featured ALC; The resulting system damping factor of 10.000 offers further reduced distortion, regardless of cable length or system impedance.
The GB181 in road-version is finished in Durotect™ scratch-resistant coating; The system can be delivered in any RAL color finish, through the Architect Color Option™ program.
Two options are available: an installation version (“GB181i”) and a road version (“GB181”) with wheel dolly, M20 threaded stand mount flange and handles. The road version also features a recess for slide-free stacking of a GR20.
