




Aura Sub 315S
15" Compact Installation Subwoofer


Product at a Glance
The British Acoustics Aura Sub 315S is a compact 15" installation subwoofer engineered for deep, powerful bass in professional sound systems. With a peak SPL of 135 dB and response down to 36 Hz, it delivers robust low-end reinforcement with clarity. An aluminium demodulating ring and optimised airflow ensure minimal distortion and compression at high output. Housed in marine birchply with polyurea paint and steel grills, it’s built for durability. Integrated handles, M10 flying inserts, and stacking feet allow flexible deployment. Finished in signature umber brown with RAL options, the Aura Sub 315S combines performance, reliability, and installation-ready design.
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) : 45 Hz - 100 Hz
• Freq. Range (-10 dB) : 36 Hz - 100 Hz
• Rated Power : 800W AES, 3200W Peak
• Omni Directional Coverage
• Cardioid Presets Available
• Crossover : 80-120Hz, Active
• Nominal Impedance : 8 Ω
• Max Output : Cont 129 dB, Peak 135 dB
• 2 x Speak-On Sockets, Input & Thru
SYSTEM SPECIFICATIONS
• Recommended System Control : Delta Drive
DSP Control Systems
• Recommended Amplifiers : See Amplifier
load calculation chart
LF TRANSDUCER
• 15" Low Frequency Extension Driver
• 800W AES, 3200W Peak
• 3" Voice Coil - Ferrite Magnet
• Minimal Power Compression with optimised
air-paths
• Aluminum Demodulating Ring for reduced
distortion
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 used
horizontally or vertically and can be used as
a stack of subs
• 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: 500 x 450 x 680 mm (H x W x D)
• Product: 19.7 x 17.7 x 26.8 inch (H x W x D)
• Packed individually
WEIGHT
• Net : 36.5 Kgs
• Net : 80.48 Lbs
SHIPPING INFORMATION
• Carton Size
575 x 730 x 755 mm (H x W x D)
22.6 x 20.6 x 29.72 inch (H x W x D)
• Gross Weight : 38.32 Kgs / 84.50 Lbs
• Packed : Individually