PW 621 S
Dual 21" Horn Loaded Subwoofer
Product at a Glance
The British Acoustics PW 621S is a premium 21" horn-loaded subwoofer delivering powerful, precise bass for large events and professional audio setups. It projects deep, immersive low frequencies with minimal loss, ideal for concerts, festivals, and high-energy venues. Featuring cardioid presets and ultra-low frequency response, it offers flexible sound control for various stage configurations. Built with a rugged plywood enclosure and weather-resistant finish, it ensures durability in touring and outdoor conditions. Maintenance hoods simplify servicing, while ergonomic handles and stackable design ease transport. Compatible with dance stacks or standalone use, the PW 621S combines power, reliability, and versatility for demanding sound reinforcement.
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) : 40 Hz - 200 Hz
• Freq. Range (-10 dB) : 25 Hz - 200 Hz
• Rated Power : 1500W AES, 6000W Peak
• Omni Directional
• Cardioid presets available
• Nominal Impedance - Passive 4 Ω
• Crossover : 80 - 120 Hz Active
• Max Output : Cont. - 136dB, Peak - 142dB
• 2 x Speak-on terminals, Input & Thru
SYSTEM SPECIFICATIONS
• Recommended System Control :Delta 48 , Delta 98 FIR, PW 6
• Recommended Amplifiers : See Amplifier load calculation chart
LF TRANSDUCER
• 21 PW 53L - 21" Low Frequency Driver
• Two drivers connected in parallel
• 750W AES, 3000W Peak
• 5.3" Voice Coil - Ferrite Magnet
• Triple Reinforced Cone with large surround
• Fortex™ Weather Resistant Cones
HOUSING
• Multilevel Plywood Enclosure
• Granular Scratch Free Polyurea Paint
• Perforated Black, Pressed Steel Grills
• Integrated Handles on Either Side
• Includes a set of vertical bottom feet for
secure and stable stacking
AESTHETIC SPECIFICATIONS
• British Acoustics Signature Brown Umber Tone
• Non Reflective, Matte Black Grills
• 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): -9° C (15.8° F)
IP SPECIFICATIONS
• IP 43 - Standard protection against dust &
splashes
OPTIONAL ACCESSORIES
• See system chart for the System Accessories
SIZE
• Product : 584 x 1689 x 844 mm (H x W x D)
• Product : 23 x 66.5 x 33.25 inch (H x W x D)
• Packed individually
WEIGHT
• Net : 128.2 Kgs
• Net : 282.63 Lbs
SHIPPING INFORMATION
• Carton Size
673.1 x 1746.25 x 939.8 mm (H x W x D)
26.5 x 68.75 x 37 inch (H x W x D)
• Gross Weight - 137.5 Kgs / 303.13 Lbs
• Packed : Individually
DOWNLOADS CENTRE
Datasheet PW 621 S
DWG Drawing PW 621 S
PDF Drawing PW 621 S
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