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SPF-18A
& SPF-18
ACTIVE & PASSIVE 18" FOLDED HORN
SUBWOOFERS
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 THEY
WILL MOVE YOU!
The B-52 SPF-18A is
designed for large permanent installations.
It combines the advantage of a long throw
folded horn 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 a pair of XLR cables. These
cabinets are constructed of 13-ply Baltic birch,
scratch-resistant paint and can easily withstand
the abuse of the road. The new B-52 18-200X
subwoofer provides a real increase in the system’s
power handling and efficiency.
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SPF-18A
18”
ACTIVE FOLDED HORN SUBWOOFER
The
B-52 SPF-18A is powered
by our award-winning
1200-watt digital
amplifier. The 6
lbs amplifier has
the ability to power
a secondary passive
subwoofer - the SPF-18S.
The SPF-18A includes
all the features
needed in an active
subwoofer: 24 dB
/ octave electronic
crossover, a compressor/
limiter, subsonic
filter, phase switch
and both full-range
and high-pass outputs. |
AMPLIFIER
FEATURES:
* Made in the U.S.A.
* 1200-watt RMS digital amplification
* 800 watts RMS @ 8 Ohms (SPF-18A)
* 1200 watts RMS @ 4 Ohms (SPF-18A
& SPF-18S connected / SPF-1818A)
* Crossover slope: 24 db/octave
* Subsonic filter: 30 Hz
* Built-in compressor / limiter
* XLR balanced inputs
* XLR balanced FR & 120 Hz HP outputs
* 0–180° phase switch
* Neutrik speaker output (SPF-18A)
* Full thermal & short circuit protection
* Signal sensing on/off circuitry |
SPF-18S
18” PASSIVE FOLDED HORN SUBWOOFER
The B-52 SPF-18S is a
passive version of the SPF-18A that utilizes
the same B-52 18-200L, 4” voice coiled 1000-watt
subwoofer. It can be powered by the SPF-18A
(using the Neutriktm Speakon output on
the SPF-18A amplifier) or via a conventional
rack-mount amplifier. It features a solid
Birch construction, tilt-back handles
and 4”
casters. |
New
B-52 18-200X 18” Subwoofer
The new B-52 18-200X 18” subwoofer features a
cast-aluminum frame, 200 oz magnet structure, double
spider, anti-rocking surround, a bumped back plate for
maximum excursion and 4” dual-layered tempered
voice coil. The voice coil is wound with 4 layers of
25-gauge copper wire, optimally sized for this motor |
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THE
DIGITAL DOMAIN
The lightweight
digital amplifier is more
than 93% efficient, draws
less power than conventional
amplifiers and therefore
generates less heat. Less
heat translates to longer
device life, more efficient
operation and unparalleled
reliability. |
ELECTRICAL
DRAW
B-52’S
digital amplifier draw
less than 12 amps of
electricity at full volume.
So whether you’re
throwing a party near
a nuclear power plant,
or a house party with
only a 15 amp breaker,
the SPF-18A or SPF-1818A
can be plugged in virtually
anywhere without the
risk of popping a circuit
breaker. |
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. |
SPF-1818A
digital amplifier
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.
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