THEY WILL MOVE YOU!
The B-52 SPF-18A and SPF-1818A
are designed for large permanent installation venues. They combine the
advantage of a long throw folded horn design with the power and
reliability of B-52's digital amplification. A 24 dB / octave electronic
crossover, compressor and hard limiter are built into the amplifier
allowing these subwoofers to easily patch into an existing system with
just pair of full-range XLR input cables! These cabinets are built using
13-ply Baltic birch, scratch-resistant paint, will withstand the abuse
of the road and can be used as dance platforms!
SPF-1818S
DUAL 18” PASSIVE FOLDED HORN SUBWOOFER
The SPF-1818S delivers more than 2000 watts of thundering bass that will
pound all the way to the back of your venue. While the subwoofers are
connected in parallel, precision placed internal dividers allow each
driver to fire into the central chamber without any cancellation. Each
subwoofer is housed in a compression chamber, which allows the drivers
to produce tight, punchy bass without over excursion of the voice coil.
B-52 18-200L 18”
Subwoofer
The B-52 18-200L 18” subwoofer features a cast-aluminum frame, 200 oz
magnet structure, a bumped back plate for greater excursion and a 4”
dual-layered tempered-aluminum voice coil. The voice coil is wound with
4 layers of 26-gauge copper wire, optimally sized for this motor.
18” SUBWOOFER
The B-52 18-200L 18” subwoofer features a
cast-aluminum frame, 200 oz magnet structure, a bumped back plate for
greater excursion and a 4” dual-layered tempered-aluminum voice coil.
The voice coil is wound with 4 layers of 26-gauge copper wire, optimally
sized for this motor.
CABINET
CONSTRUCTION
The SPF1818A and SPF-1818S cabinest are built for the abuse of the road
and to stand-up to the pounding club scene for installation. These subs
are constructed with 13-ply Baltic birch and are backed by our
unequalled warranty.
COMPRESSION
CHAMBER
The SPF-1818A and SPF-1818S cabinets house a compression chamber that
minimizes the excursion of the driver while maximizing the subwoofer’s
output. The optimally-sized acoustic aperture of the compression chamber
forms the throat of the horn and helps force air at an increased
velocity and pressure. The compression chamber optimizes the horn’s
output, allowing the the subwoofer to achieve amazing and unprecedented
output levels.
All
Architectural Series folded horn subwoofer cabinets feature 13-ply
Baltic birch construction, scratch resistant black or white paint finish
and a LIFETIME construction warranty.
As always, the
very impressive B-52 standard warranty:
Lifetime warranty on cabinet construction
Lifetime warranty on high-frequency devices
Five-year warranty on loudspeakers
Two-year warranty on amplifiers | 
