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Everything in Music Since 1958
Everything in Music Since 1958

BassBoss VS21-MK3 21-Inch Two-Way Active Powered Subwoofer

Original price $4,995.00 - Original price $4,995.00
Original price
$4,995.00 - $4,995.00
Current price $4,995.00

This item does not qualify for free shipping.

May require truck delivery or special handling.

♫ In stock
About Inventory Status

Call or text us at 301-946-8808.

In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.

📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.

Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.

Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.

█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions

Call or text us at 301-946-8808.

New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.

Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.

Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.

Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.

B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

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Sweet, Strong, and Intoxicating - The BassBoss VS21-MK3 21-Inch Two-Way Active Powered Subwoofer

The VS21-MK3 features punchy and full deep bass, very high output SPL, smooth even bass, accuracy, and versatility across all genres—from Dubstep to acoustic performances, this sub has you covered. This self-powered unit includes the BassBoss comprehensive DSP suite.

  • Black finish
  • Ideal for shows spanning genres that need intense dance-floor coverage
  • Transient response is delivered by the efficient performance of the horn at the upper end of the subwoofer range
  • Extended depth via the large acoustical volume, low tuning and the massive displacement of the long-excursion 21-inch woofer
  • Brings the world of extended low frequency together with the world of high impact
  • Satisfies the demands of hard-hitting live kick drums to the deep, rolling bass of an 808
  • Delivers considerably much more output and deep bass
  • Massive displacement, long excursion 21-inch woofer, rear-loaded into a large acoustical volume that is tuned to a low frequency, and front-loaded onto a short horn

MK3 Update

BassBoss brings the boom with the MK3 line update, adding performance gains and user experience enhancements across the entire line.

  • Upgraded 96 kHz DSP
  • Weather-isolated inputs
  • Waterproof power connectors
  • Global power compatibility
  • Better power utilization
  • Brand-new control software for remote management


  • Loudspeaker Description: High-output Single 21 inch Subwoofer
  • Frequency Response (±3 dB): 25 – 90 Hz
  • Maximum Sustained Output: 132 dB SPL, 1 meter, half-space (ground plane)
  • Max SPL (Peak): 139 dB
  • Nominal Dispersion (H° x V°): 360 x 360 – Cardioid Mode Available with Multiple Boxes
  • Amplification: 2400 Watt Continuous RMS Class D Subwoofer Amplifier
  • Processing: Integrated comprehensive DSP provides high pass, low pass, phase alignment and limiting
  • Enclosure Type: Vented, short-horn hybrid
  • Transducer: 1 x 21 inch diameter (540 mm) neodymium motor woofer with 58 mm (2.28 inches) peak to peak excursion. Waterproof fiber composite cone
  • Cabinet Construction: 18 mm Baltic Birch plywood, dado joints, stainless steel hardware
  • Dimensions (HxWxD): 36 in. x 24 in. x 36 in. (37.5 in. high with feet)
  • Net Weight: 180 lbs
  • Shipping Weight: 230 lbs

Manufacturer: BASSBOSS
Model: VS21-MK3
SKU: I744919-N-2-WHXB
UPC: 855591006715

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