Fulcrum Acoustic Unveils New FLS115 Subcardioid Subwoofer

Creators of high-performance professional loudspeaker technologies, Fulcrum Acoustic have introduced the FLS115 Subcardioid Subwoofer. A powerful complement to its companion FL283 Subcardioid Line Array, the FLS115 is ideal for the most demanding venues, including performing arts centers, houses of worship, sporting facilities, and nightclubs.

Founded in 2008, Fulcrum Acoustic is a professional loudspeaker manufacturer known for its unique approach to loudspeaker design, employing the research of company co-founder David Gunness, combining proprietary coaxial design and Temporal Equalization processing power.
 
The FLS115 is a subcardioid line array subwoofer module intended for permanent installation in a wide range of venues. It includes a single, high power 15 inch direct-radiating woofer, with 4.5” voice coil and neodymium magnet in a compact enclosure. The FLS115’s rigging is designed to easily attach to the FL283 subcardioid line array module. The enclosure is shaped to accommodate up to 20 degrees of splay between adjacent enclosures, allowing for more sharply curved arrays than comparable line array subwoofers. It weights 25.6 kg / 57.0 lb  and up to twelve modules may be suspended with a 10:1 design factor.

Incorporating Fulcrum’s acclaimed Passive Cardioid Technology, the FLS115 dramatically reduces excessive rear low frequency radiation without the need for additional drivers, amplifiers, or signal processing. It delivers superior LF directional control and rear rejection without the loss of efficiency commonly found in active cardioid devices.

Operating as a single-amplified module with DSP and covering frequencies from 31 Hz to 135 Hz, the FLS115 is able to handle up to 1500 W at 8 Ω nominal impedance, reaching peaks of 125 dB or 119 dB continuous maximum equalized SPL. Meticulously designed acoustical circuitry, combined with Fulcrum’s proprietary TQ processing, delivers exacting pattern control, as well as unparalleled performance and precise transient response, even at very high SPLs. Fulcrum Acoustic’s TQ processing is an integral part of the design and the required digital signal processing can be provided by one of many supported platforms.

The subcardioid behavior is produced by a meticulously conceived acoustical circuit which balances the position of the low frequency driver, the enclosure depth and volume, and specially constructed rear-mounted ports which include a calibrated resistive element. By opting for a subcardioid pattern as opposed to a pure, hyper or super cardioid pattern, the rear rejection increases when the modules are deployed as a curved line array.
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