


Delta K18 FS
Powered 18" Flying Subwoofer


Product at a Glance
The British Acoustics Delta K18 FS is a self-powered 18" flying subwoofer designed for powerful, controlled low-frequency reinforcement in professional audio systems. Featuring an 18" neodymium woofer in a front-loaded enclosure, it pairs seamlessly with the Delta K40 Line Array or ground-stacks via a 20mm pole socket. Powered by a 3000W Class-D amp with a range down to 31 Hz, it includes a 4" Duo Copper Voice Coil and Malt Cross Cooling for reliability. With the Delta Audio Controller, cardioid presets, weather-resistant design, and Fortex™ cones, the K18 FS is a robust, versatile subwoofer finished in signature brown.
CRAFTSMANSHIP
Painstakingly Perfect Production

Over the years, craftsmanship has been closely linked with small scale individualistic production. Back in 1972, we started the same way. As we grew in scale & size, it was difficult to build each speaker individually, but quality control was of utmost importance as so switching to a general assembly line was simply not an option. So we wrote up a code, one quite like enigma, to ensure quality control. We selected the right partners, got the right tools, and in cases where those weren't available, we invented them. We grew slower than most as our aim was to last longer than most.
TECHNICAL SPECIFICATIONS
ACOUSTICAL SPECIFICATIONS
• Freq. Response (-3 dB) : 40 Hz - 400 Hz
• Freq. Range (-10 dB) : 36 Hz - 400 Hz
• Omnidirectional Coverage
• Cardiod preset available
• Crossover : 60 Hz -100 Hz active
• Max Output : Cont. - 129dB, Peak - 135dB
SYSTEM SPECIFICATIONS
• Recommended System Control : Delta Audio Controller (DAC) & Delta Array Predictor (DAP)
LF TRANSDUCER
• D18 - 100 18” Low frequency driver
• 1000W, 4000W Peak
• 4” Inside-out wound VC
• Optimised Cooling system
• Aluminum Demodulating Ring
• Double Silicone Spider
HOUSING
• Marine Birchply Enclosure
• Granular Scratch Free Polyurea Paint
• Perforated Black, Pressed Steel Grills
• Integrated Handles on Either Side
AMPLIFIER & DSP
SPECIFICATIONS
• 3000W Class-D Amplifier
• Dual Stage Power Factor Correction
• Exceptional Amplifier Efficiency
• Thermal, short-circuit and overload
protections
• 64 bit/96kHz processor, Digital FIR filters
• 32 bit/96kHz AD/DA converters
• 3” LCD Touch user interface
• Dual Ethercon Connectors to connect with
Delta Audio Controller
• AES/EBU XLR In/Out, Analog XLR In/Out
• 16A Neutrik Truecon Power In/Out
AESTHETIC SPECIFICATIONS
• British Acoustics Signature Umber Brown Tone
• Non Reflective, Matte Black Grills
• Available in a RAL code of your choice (24 nos, minimum)
OPERATING PARAMETERS
• Operating positions: On Ground, stackable
• Maximum permitted ambient temperature (Ta max) 55° C (124° F)
• Minimum permitted ambient temperature (Ta min): -2° C (28.4° F)
IP SPECIFICATIONS
• IP 43 - Standard protection against dust & splashes
OPTIONAL ACCESSORIES
• See system chart for the System Accessories
SIZE
• Product: 508 x 597 x 749 mm (H x W x D)
• Product: 20 x 23.5 x 29.5 inch (H x W x D)
• Packed individually
WEIGHT
• Net : 59 Kgs
• Net : 130 Lbs
SHIPPING INFORMATION
• Carton Size
2413 x 12501 x 2654 mm (H x W x D)
95 x 98.5 x 104.5 inch (H x W x D)
• Gross Weight : 61 Kgs / 134 Lbs
• Packed : individually


