




Aura Blu 315 X
15” Linear Coaxial Speaker


Product at a Glance
The British Acoustics Aura Blu 315 X is a 15" linear coaxial speaker delivering exceptional clarity and power. With a 132 dB peak output and user-rotatable horns, it provides precise, consistent coverage across a wide frequency range, ideal for live performances, installations, and stage monitoring. Its coaxial design minimizes phase imbalances, ensuring superior coherence and detailed sound. Advanced LF and HF transducers enhance audio quality for demanding professional use. Constructed with a durable marine birchply enclosure and scratch-resistant polyurea paint, it features integrated handles, sloped input plates, M10 flying inserts, and stable feet for versatile installation. Finished in British Acoustics' signature umber brown with blue grill decals, the Aura Blu 315 X combines rugged construction with high performance for diverse sound reinforcement needs.
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) : 53 Hz - 20 kHz
• Freq. Range (-10 dB) : 41 Hz - 20 kHz
• Rated Power : 550W AES, 2200W Peak
• H Dispersion : 100° (- 6 dB)
• V Dispersion : 60° (- 6 dB)
• User Rotatable Horns
• Crossover : 1.6 kHz Passive or Bi-amplified
• Nominal Impedance : 8 Ω
• Max Output : Cont 126 dB, Peak 132 dB
• 2 x Speak-On Sockets, Input & Thru
SYSTEM SPECIFICATIONS ANSWER
• Recommended Subwoofers : See System
Chart for compatible subwoofers
• Recommended Amplifiers : See Amplifier
load calculation chart
• Recommended System Control : Delta Drive
DSP Control Systems
CO-AXIAL TRANSDUCER
• 15" Coaxial Driver
• 500W Continuous, 2000W Peak
• HF : 3" Voice Coil - Ferrite Magnet
• 1.4" Compression Driver
• AuraTense Suspension for an optimised
compliant restoring force
• Engineered Demodulation Circuit to
minimize magnetic flux and lower distortion
• HF : 3" Voice Coil - Ferrite magnet
• 50W AES, 200W Peak
• Mounted behind the assymetrical aura
waveguide that ensures minimal resonance
across a cprecise coverage pattern
• Co-axial configuration allows for maximum
coherence by reducing phase imbalances
HOUSING
• Marine Birchply Enclosure
• Granular Scratch Free Polyurea Paint
• Perforated Black, Pressed Steel Grills
• Integrated Handles on Either Side
• Includes a set of round bottom feet for
secure and stable stacking
• Sloped Input Plates
• M10 Flying inserts
AESTHETIC SPECIFICATIONS
• British Acoustics Signature Umber Brown
Tone
• Blue Decals on Grills for better Aesthetics
• Available in a RAL code of your choice (24
nos, minimum)
OPERATING PARAMETERS
• Operating positions: Can be deployed
horizontally or vertically with the correct
installation brackets or can be used as a
monitor
• Maximum permitted ambient temperature
(Ta max) 55° C (124° F)
• Minimum permitted ambient temperature
(Ta min): -20° C (-4° F)
IP SPECIFICATIONS
• Standard Version : IP 42 - Offers basic
protection against dust & splashes
OPTIONAL ACCESSORIES
• See system chart for the System Accessories
SIZE
• Product: 432 x 685 x 413 mm (H x W x D)
• Product: 17 x 26.9 x 16.2 inch (H x W x D)
• Packed individually
WEIGHT
• Net : 26 Kgs
• Net : 57.33 Lbs
SHIPPING INFORMATION
• Carton Size
507 x 760 x 488 mm (H x W x D)
19.96 x 29.9 x 19.2 inch (H x W x D)
• Gross Weight : 27.3 Kgs / 60.1 Lbs
• Packed : Individually