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Delta D28 S

Flagship Powered Dual 18" Subwoofer
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Product at a Glance

The British Acoustics Delta D28 S is a self-powered dual 18" subwoofer, engineered for delivering impactful and controlled low-frequency performance. Designed for demanding live performances, concert tours, and fixed installations, it ensures exceptional bass reproduction with power and precision.The D28 S features individual power amplifiers with dedicated power supplies for each 18" driver, ensuring consistent output and reliability. Its 4.5" Split winding Copper Voice Coils enhance thermal stability and durability, enabling deep, precise bass even at high output levels.

For streamlined setup and advanced performance, the D28 S includes a Cardioid Connection Box for tidy cabling and a touchscreen interface for quick preset selection. Paired with the Delta Array Predictor, it supports configurations such as subwoofer beams, end-fire stacks, and cardioid stacks. Additionally, the Delta Audio Controller facilitates seamless integration with larger audio systems.Manufactured in Europe with precision and cutting-edge technology, the D28 S is built for durability and performance. Its robust construction minimizes resonance, maintaining accurate sound reproduction at high SPL levels. Designed for professional applications, the Delta D28 S combines advanced engineering with reliable performance to meet the needs of modern 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

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