BassBoss VS21-MK3

The VS21-MK3 Single 21” Powered Subwoofer offers low-frequency extension similar to vented dual 18” subwoofers in combination with the hard-hitting punch of horn-loaded subwoofers.The VS21-MK3 brings the world of extended low frequency together with the world of high impact: You’re no longer forced to choose either deep OR punchy, as the VS21 offers both.

The VS21-MK3 is a vented, short horn hybrid sixth order bandpass which features a massive displacement, long excursion 21” woofer, rear-loaded into a large acoustical volume that is tuned to a low frequency, and front-loaded onto a short horn. The vented enclosure section provides extended low frequency performance and the horn section provides increased upper frequency sensitivity and improved transient response.

The VS21-MK3 features a 2500W amplifier with an auto-sensing, globally compatible power supply that can run on mains supplies anywhere between 90 and 250 Volts. Full output power is available on anything over 110V. The amplifier’s high peak output voltage provides for intense high SPL hits while its sustained output is unparalleled in its ability to deliver the liquid lows. The amplifier is passively cooled via its external heat sink and by woofer-generated air flow through the port. When necessary, two blower-fans will engage to provide additional forced-air cooling capacity in more extreme conditions.

New to the MK3 are Neutrik powerCON True 1 TOP (Total Outdoor Protection) waterproof mains connectors. Waterproof mains connectors along with a totally isolated input connection section and cones that are waterproofed make the MK3 series the powered loudspeakers that can be used outdoors without fear of what the weather will bring. (Or used indoors without fear of what the partiers bring.)

Electrical power is converted into the much more desirable acoustical power by a robust, neodymium motor, 21-inch woofer with a massive 4.5-inch (115mm) voice coil. Neodymium magnets are lighter, and their higher intensity provides higher efficiency, so the result is a lighter and louder cabinet than those with ferrite drivers.

Specifications
Acoustical
Description: Subwoofer, single 21” powered and processed
Frequency Response (±3 dB): 27 - 100 Hz (Preset dependent)
Maximum Measured Output: 135 dB SPL, 1 meter, half-space (ground plane)
Max SPL (Peak)*: 138 dB
Nominal Dispersion (Hº x Vº): 360 x 360 - Cardioid mode available with multiple boxes

Electrical
Amplification: 2500 Watt RMS Class D Amplifier
Processing: Integrated comprehensive DSP provides high pass, low pass, and phase alignment and limiting
Electrical Connectors, Amp: Neutrik powerCON True 1 TOP waterproof connectors
Electrical Connector, Mains: Standard US 3-pin grounding 120V electrical plug: NEMA 5-15
Voltage Operating Range: 100-240V
Current Draw, Nominal: 4.6A @ 120 volts
Current Draw, Peak: 20A
Signal Input Connector: XLR-F Signal Output Connector: XLR-M (Direct pass-through, unprocessed)

Physical
Enclosure Type: Vented, short horn hybrid
Transducer: 1 X 21” diameter (540 mm) neodymium motor woofer. 58 mm (2.28”) peak to peak excursion with waterproof fiber composite cone
Cabinet Construction: CNC machined 18 mm Baltic Birch plywood with dado and Rabbet joinery
Dimensions (HxWxD): 36” x 24” x 36” (91.44 cm x 60.96 cm x 91.44 cm) - 37.5” (95.25 cm) high with feet
Net Weight: 180 lbs. (82 kg)
Shipping Weight: 230 lbs. (104 kg)
Exterior Finish: Weatherproof bonded high-pressure polyurethane
Grille: Perforated, powder-coated steel
Pole Sockets: 3 (35 mm) pole sockets
Handles: 6 Integrated handles
Feet: 12 interlocking rubber feet
Suspension System: 16 X M10 threaded flypoints

Optional
Transport Dollies (H or V): Dolly cart with 4 locking casters and recesses to accept interlocking cabinet feet
Cover: Heavy-duty padded nylon transport covers for 1 cabinet
Online Information: bassboss.com/VS21