Alpha Source 408 WR
8" High Performance Passive Speaker
Product at a Glance
The Alpha Source 408 WR is built for superior audio performance in both indoor and outdoor environments, withstanding challenging weather conditions thanks to its IP54-rated water and dust resistance. Its 8" low-frequency driver and 0.75" HF compression driver deliver crisp, full-range sound, optimized by the Alpha Contour Waveguide for smooth, distortion-free audio. Its wide 90° horizontal and 50° vertical dispersion ensure excellent sound coverage, making it ideal for public spaces, auditoriums, and outdoor events.
Crafted with a marine-grade birch plywood enclosure coated in scratch-resistant polyurea paint, this speaker is as robust as it is versatile. The WR version also features user-rotatable horns, multiple mounting options, and sloped input plates for seamless installations. The Alpha Source 408 WR combines functionality with a sleek design in British Acoustics' signature umber brown tone, proving it is the perfect choice for professional-grade audio in any setting.
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) :72 Hz - 20 kHz
• Freq. Range (-10 dB) : 60 Hz - 20 kHz
• Rated Power : 250W AES, 1000W Peak
• H Dispersion : 90° (- 6 dB)
• V Dispersion : 50° (- 6 dB)
• User Rotatable Horns
• Nominal Impedance : 8 Ω
• Crossover : 1.8 kHz or Bi-amplified
• Max Output : Cont 120 dB, Peak 126 dB
• 2 x Speak-On Sockets, Input & Thru
SYSTEM SPECIFICATIONS
• Recommended Subwoofers : See Systems
Chart for compatible subwoofers
• Recommended System Control : Delta Drive
DSP Control Systems
• Recommended Amplifiers : See Amplifier
load calculation chart
LF TRANSDUCER
• 8" Low Frequency Driver
• 220W AES, 880W Peak
• 1.3" Copper Voice Coil - Ferrite Magnet
• Enhanced Airflow Path for minimal power
• Aluminum Demodulation Ring for reduced
distortion
HF TRANSDUCER
• 0.75" Exit HF Compression Driver
• 30W AES, 120W Peak
• 1" Voice Coil - Ferrite Magnet
• Alpha Contour Waveguide ensuring
consistent coverage
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
• Installation brackets : Alpha Throne (H),
Alpha Throne (V), Alpha Yoke B410
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
• WR Version : IP 54 - Offers greater
resistance against dust & water
OPTIONAL ACCESSORIES
• See system chart for the System Accessories
SIZE
• Product: 469 x 228 x 279 mm (H x W x D)
• Product: 18.5 x 9 x 11.0 inch (H x W x D)
• Packed individually
WEIGHT
• Net : 10.6 Kgs
• Net : 23.3 Lbs
SHIPPING INFORMATION
• Carton Size
544 x 303 x 354 mm (H x W x D)
21.4 x 12 x 13.9 inch (H x W x D)
• Gross Weight : 11.13 Kgs / 24.5 Lbs
• Packed : Individually
DOWNLOADS CENTRE
Datasheet
CAD Files
GLL
