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Delta K40 LA

Powered dual 10" Line Array

Product at a Glance

The British Acoustics Delta K40 LA is a compact and versatile self-powered dual 10" line array, designed for professional audio applications where high performance and ease of use are paramount. Its intelligent features and robust construction make it ideal for touring, live performances, and fixed installations. With its compact design, the K40 LA is easy to set up and integrates seamlessly into any venue, offering a best-in-class size-to-SPL ratio for powerful, room-filling sound without taking up excessive space. Equipped with 3000W of top-of-the-line Class-D amplification, the K40 LA delivers exceptional clarity and output while maintaining high energy efficiency.

Its built-in DSP allows plug-and-play operation, making it user-friendly and quick to deploy. For larger systems, the K40 LA can be controlled via the Delta Audio Controller, providing advanced system configuration and real-time monitoring. The cabinet is constructed from premium Baltic birchwood, ensuring durability and acoustic precision. This robust construction minimizes resonance, ensuring consistent and accurate sound reproduction even at high SPL levels. Combining compact portability, powerful amplification, and intelligent features, the Delta K40 LA sets a new standard for professional line arrays, delivering exceptional sound quality and reliability in any environment.

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) : 54 Hz - 20 kHz
• Freq. Range (-10 dB) : 49Hz - 20 kHz
• H Dispersion : 100° (- 6 dB)
• V Dispersion : 10° array dependent
• Crossover : Digital FIR 1.2 kHz
• Max Output : Cont. : 131dB, Peak : 137dB

SYSTEM SPECIFICATIONS

• Recommended Subwoofers : See Systems
Chart for compatible subwoofers
• Recommended System Control : Delta Audio
Controller (DAC)

LF TRANSDUCER

• 1013 F - 10" Low Frequency Delta Drive 3"VC
• Two drivers connected in series
• 500W , 2000W Peak
• Inside-out Aluminum Voice Coil
• Compliant & controlled spectre-spider
• Enhanced ventilation due to optimized heat
paths

HF TRANSDUCER

• HF 1575-1.5” exit high frequency compression
driver
• 100W, 400W Peak
• Precise waveguide maintaining horizontal
dispersion upto 18 kHz

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
• Dual Ethercon Connectors to connect with
Delta Audio Controller
• 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: Flowing or Ground stacked with the correct Array Frame or Accessory
• 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

HOUSING

• Marine Birchply Enclosure
• Granular Scratch Free Polyurea Paint
• Perforated Black, Pressed Steel Grills
• Integrated Handles on Either Side
• 4-Point Easy-Fly™ Rigging Mechanism
• 0-10° Splay Angles
• Tethered Quick-lock Pins
Max. of 16 units in one hang with the AF 930 LA
• Can be flown or stacked over the Delta
K18 FS without the need of an array frame