Delta D28 S
Flagship Powered Dual 18" Subwoofer
Product at a Glance
The British Acoustics Delta D28 S is a self-powered dual 18" subwoofer delivering powerful, precise low-frequency performance for live shows, tours, and installations. Each driver is powered by an individual amplifier with a dedicated power supply, ensuring consistent output. Its 4.5" split winding copper voice coils enhance thermal stability and durability. Featuring a Cardioid Connection Box and touchscreen for quick preset access, it supports advanced configurations via Delta Array Predictor and seamless integration with Delta Audio Controller. Manufactured in Europe for durability and precision, the robust design minimizes resonance, delivering accurate bass at high SPLs for professional audio environments.
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) : 29 Hz - 185 Hz
• Freq. Range (-10 dB) : 25 Hz - 200 Hz
• Omnidirectional coverage
• Cardio Preset available
• Crossover : 60 - 110Hz Active
• Max Output : Cont. : 138dB, Peak : 144dB
SYSTEM SPECIFICATIONS
• Recommended System Control : Delta Audio Controller (DAC) & Delta Array Predictor
(DAP)
LF TRANSDUCER
• 1845K - 18” Low Frequency Drivers
• Two drivers connected in parallel
• 1600W AES Power, 6400W Peak
• 4.5” split winding Copper Voice Coil
• Double silicone spider with optimized compliance
• Fortex™ Weather Resistant Cones
HOUSING
• Marine Birchply Enclosure
• Granular Scratch Free Polyurea Paint
• Perforated Black, Pressed Steel Grills
• Integrated Handles on Either Side
AMPLIFIER & DSP SPECIFICATIONS
• 8000W Class-D Amplifier
• 2 Dedicated Amplifier with individual power
supply, one for each driver
• 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
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)
AESTHETIC SPECIFICATIONS
• British Acoustics Signature Umber Brown
Tone
• Non Reflective, Matte Black Grills
• Available in a RAL code of your choice (24
nos, minimum)
IP SPECIFICATIONS
• IP 43 - Standard protection against dust &
splashes
OPTIONAL ACCESSORIES
• See system chart for the System Accessories
SIZE
• Product: 599 x 1193 x 762 mm (H x W x D)
• Product: 23.6 x 47 x 30 inch (H x W x D)
• Packed individually
WEIGHT
• Net : 81 Kgs
• Net : 178.6Lbs
SHIPPING INFORMATION
• Carton SIze
674 x 1268 x 837 mm (H x W x D)
26.5 x 49.9 x 32.9 inch (H x W x D)
• Gross Weight : 85 Kgs / 187.5 Lbs
• Packed : individually
DOWNLOADS CENTRE
Datasheet Delta D28 S
Software
PDF Drawing Delta D28 S
Software
