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Response Graph
Our proactive philosophy causes specifications to be subject to change whenever improvements are made.
ACOUSTICAL
Loudspeaker Description:
Extended Low-Frequency Dual 18” Powered Subwoofer
Frequency Response (±3 dB):
24 – 90 Hz
Frequency Response, Pair (±3 dB):
21 – 90 Hz
Maximum Sustained Output:
134 dB SPL, 1 meter, half-space (ground plane)
Nominal Dispersion (H° x V°):
360 x 360 – Cardioid mode available with multiple boxes
Amplification:
4000 Watt Continuous RMS Class D Subwoofer Amplifier
Processing:
Integrated comprehensive DSP provides high pass, low pass, phase alignment and limiting
Electrical Connectors, Amplifier:
Neutrik powerCON input (Blue) NAC3FCA, Neutrik powerCON through (Grey) NAC3FCA
Electrical Connector, Mains:
Standard US 3-pin 120V electrical plug: NEMA 5-15 (Edison), Optional electrical plugs available,
including L5-30 and others, upon request.
Voltage Operating Range:
90-132VAC, 55-65Hz
Current Draw, Nominal:
564 W, 4.7A @ 120 Volts (typical, 1/8 max power)
Signal Input Connector:
XLR-F
Signal Output Connector:
XLR-M (pass-through only)
ELECTRICAL
Enclosure Type:
Direct radiating, vented enclosure, optimally tuned for extremely low frequency response and excellent
electrical conversion efficiency
Transducer:
2 x 18” diameter (457 mm) neodymium motor woofer with 4.5” (115 mm) copper winding voice coil
and 56 mm (2.2”) peak to peak excursion, waterproof fiber composite cone
Cabinet Construction:
18 mm Baltic Birch plywood, extensively braced. Equipped with 16 flypoints, 8 steel handles, 2 pole sockets,
4 large rubber feet, and 4 interlocking foot pockets
Dimensions (HxWxD):
22.5” x 42” x 42” (57.15 cm x 106.68 cm x 106.68 cm) - 23.25” (59.05 cm) high with feet
Net Weight:
225 lbs (102 kg)
Shipping Weight:
240 lbs (109 kg)
Exterior Finish:
Rugged, weatherproof, black textured, bonded high-pressure polyurethane coating
Grill:
Perforated, powder-coated steel
Pole Sockets:
2 (35 mm)
Handles:
8 Steel Handles
Physical
Flying Hardware:
Side-pull anchors and/or shoulder eyebolts
Suspension System:
16 x 3/8”-16tpi threaded flypoints
Amplification for Installation:
Complete power package including DSP in two space rack chassis for permanent installations
Installation Version:
Available without handles and pole sockets
Transport Dollies:
Dolly cart with 4 locking casters and recesses to accept interlocking cabinet feet for transporting 1 to 3 cabinets
Covers:
Heavy-duty padded nylon transport covers for 1 or 2 cabinets
Online Information:
bassboss.com/zv28
Optional