B-52 SPF-18A Active 18in Sub #13338

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Condition	New $2,999.99 $1,499.99 Save 50% Demo/Open Box $2,999.99 $899.99 Save 70% What does demo/open box mean?
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SPF-18A & SPF-18 ACTIVE & PASSIVE 18 FOLDED HORN SUBWOOFERS 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. 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 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 -1818Adigital 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.