Subwoofer

Black speaker cabinet with hexagonal grill and embossed logo
Subwoofer rear panel with connectors and logo
Black speaker cabinet with grill and embossed logo
Black trolley with blue wheels and a raised logo.
Black speaker cabinet with grill and indented logo
Black dolly with blue wheels and embossed logo
Subwoofer rear panel with connectors and logo
Black dolly with blue wheels and embossed logo
Black speaker cabinet with grill and indented logo
Black trolley with blue wheels and a raised logo.
Black speaker cabinet with grill and embossed logo

VS21-MK3

SINGLE 21" Subwoofer The "Rum Punch" - so sweet, so deadly. This baby packs a wallop and it feels so good!

Audio

Take a Big Hit

You do a wide variety of shows and genres with your subs. You need to meet the demand for hard-hitting live kicks and the rolling bass of an 808. You need the perfect blend of performance and versatility. Precise low-end reproduction with a massive punch and plenty of heft.

Give It A Punch

The VS21-MK3 is a rum punch of sweet, deep, punchy bass. With horn-loaded and vented design get the best of both worlds for dance floor mastery.

Download Data Sheet

Learn more about the product specifications

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Manifacturer Warranty

Our brands provide full warranty coverage on all listed products.

Tech Support

We provide system support to dealers and installers by offering product guidance, installation and wiring, product troubleshooting, and control programming to ensure optimal performance.

Free Demo

Dealers and installers can book a demo to experience the products in our showroom and learn more.

Training

Dealers and installers receive training on product specs and programming controls to enable effective and convenient distribution. Dealers and installers will be well prepared to meet their clients' needs and expectations.


True Specifications

At BASSBOSS, with the MK3 line we have stopped using “Peak” and “RMS” power ratings for our amplifiers because those numbers alone are not an accurate representation of the real-world performance you can expect from our powered loudspeaker systems.

Peak Watts:

  • Essentially a theoretical maximum that the amplifiers could output for an instantaneous moment under ideal conditions with no load.

  • However, this peak power is not sustainable and has little practical relevance for how the loudspeakers will actually perform.

RMS (root mean square) Watts:

  • A measure of continuous power output, but even this figure doesn’t account for the true efficiency of how that power is converted into acoustic output by the transducers and overall speaker design.

  • The number of watts a loudspeaker “uses” is constantly fluctuating based on the impedance curve, frequency response, and heat generated in the voice coils.

  • Simply looking at how many watts an amplifier can produce on a test bench doesn’t translate to its real-world sound output capability.

‍What matters most is the complete integrated loudspeaker system and how efficiently it can convert the amplifier’s power into acoustic output while maintaining flat frequency response and headroom. Two loudspeakers with the same wattage ratings could have vastly different real-world sound pressure levels and clarity.

For these reasons, we believe wattage ratings alone are not a reliable metric. Listening tests and measurements of the overall system’s output capabilities like maximum SPL and distortion are far more telling than any peak or RMS wattage number viewed in isolation.

Our goal is to provide outstanding performance through intelligent system design, not just big wattage numbers.

Loudspeaker Description

Specification

Details

Loudspeaker type

Single 21″ self-powered 6th-order hybrid subwoofer

Part number

BB-VS21-MK3

Acoustic Performance

Specification

Details

Frequency response / ±3dB

28Hz–100Hz

Maximum sustained output

135dB SPL @ 1m half-space

Max SPL / Peak

138dB SPL @ 1m half-space

Nominal dispersion / H × V

360° × 360°

Cardioid mode

Available with multiple boxes

Amplification & Processing

Specification

Details

Amplification

2500W Class D

Processing

Integrated comprehensive DSP

Sampling rate

96kHz

Presets

8 pushbutton presets

Preset storage

Up to 100 presets

DSP features

High pass filters, low pass filters, phase alignment, equalization and multi-stage limiting

Electrical

Specification

Details

Electrical input connector / Amp

Neutrik powerCON TRUE1 TOP IP65-rated waterproof connectors with pass-through outlet to connect additional loudspeakers

Inlet capacity

Limited to 15A or 1800W @ 120V total

Electrical outlet connector / Amp

Neutrik powerCON TRUE1 female

Outlet capacity

Limited to 10A or 1200W @ 120V

Electrical connector mains

Standard US 3-pin grounding 120V electrical plug: NEMA 5-15 / Edison

Voltage operating range

100–240V AC, 50–60Hz

Power supply

Auto-sensing, auto-switching universal supply

Current draw / 120V

4.6A nominal

Current draw / 240V

2.3A nominal

Signal Connectivity

Specification

Details

Signal input connector

XLR-F

Signal output connector

XLR-M

Signal output type

Direct pass-through only

Enclosure & Transducer

Specification

Details

Enclosure type

Vented, short-horn hybrid

Low frequency transducer

1 × 21″ / 540mm neodymium motor woofer

Voice coil

4.5″ / 115mm

Cabinet Construction & Finish

Specification

Details

Cabinet construction

CNC-machined 18mm Baltic birch plywood

Cabinet reinforcement

Extensive bracing and dado joinery

Pole sockets

4 × 35mm pole sockets

Handles

8 integrated handles

Feet

12 rubber feet

Interlocking foot pockets

8

Flypoints

6 × M10 threaded flypoints

Exterior finish

High-pressure bonded polyurea coating

Finish properties

Rugged, waterproof

Available color

Textured black

Grille

Perforated, powder-coated steel

Dimensions & Weight

Specification

Details

Dimensions / H × W × D

36″ × 24″ × 36″

Dimensions / metric

91.44 × 60.96 × 91.44cm

Height with feet

37.5″ / 95.25cm

Net weight

180 lbs / 82kg

Shipping weight

210 lbs / 104kg

Included Items

Item

Details

Loudspeaker

Included

Power cable

15′ / 5m power cable

Documentation

Manual, warranty card

Optional Accessories

Accessory

Details

Optional cover

Heavy-duty padded nylon transport cover / vertical

Optional dolly / Version V

Birch plywood flat cart with 4 locking wheels and sockets to accept cabinet feet; transports 1 cabinet

Optional dolly / Version H

Birch plywood flat cart with 4 locking wheels and sockets to accept cabinet feet; transports up to 3 cabinets

Optional hardware

M10 shoulder eye bolts, M10 side-pull anchors

GLL / Ease file

Available from BASSBOSS support

Speakers with blue, red, and yellow lighting.
BASSBOSS logo
Sound systems built for extreme bass output and uncompromising sonic power

Sound systems built for extreme bass output and uncompromising sonic power

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