B
$4,995More Pricing →
Drum
Punch.
VS21-MK3
Single 21″ Powered Subwoofer
28-100Hz
Freq Response · ±3 dB
135dB SPL
Max Sustained SPL
2500W
Class-D Amplifier
96kHz
DSP · 100 Presets
Built for
these gigs.
Need massive bass from one cab you can move yourself?
VS21-MK3 is the answer.
If you need more or less, we'll point you to gear that's right for you.
Use VS21-MK3 for
- Mobile DJ flagship rig
- Mid-size club installs
- One-truck touring production
- Boutique festival stages
Diving Deep with the Fam.
Alican Bodur
ALI-J · @alijmusic
They deserve every penny!! … With my speakers, I got the same quality as my near field studio speakers, and plus I can crack the volume higher and be able to use it on my small parties. Definitely recommend it!
Dave Hodnick
Submersive Audio
Just had a killer show last night. We absolutely destroyed the club. The rig is sounding great! Here’s what they said after our last show: “Kicked ass and props on the bass too, sound was really good!”
Eddie Mapp
FOH Touring Engineer
The human range of hearing starts at 20 Hz. Why settle for 40 Hz? BASSBOSS creates pure, powerful and natural low-end. When listening to acoustic tracks I heard and felt depth in the music that I haven't gotten from other speaker manufacturers.
Albert Caballero
Stage, Lights & Sound
I have been using Meyer Sound for years. I was at a festival and a friend of mine was running the BASSBOSS Subs. I was floored by the sound levels BASSBOSS was able to achieve using half of the number of cabinets. From that point on, I switched to BASSBOSS!
Get
Deep.
VS21-MK3
Single 21″ Powered Subwoofer
- 28-100 Hz Freq Response · ±3 dB
- 135 dB SPL Max Sustained SPL
- 2500 W Class-D Amplifier
- 96 kHz DSP · 100 Presets
Retail
$4,995USD
Finance It Lease-to-own lets you expand your business now. Apply Now Through Synchrony & Hampton Ridge Financial
- Free freight on every speaker.
- 30-day returns. No questions asked.
- 3-year warranty, plus 6 years on the cabinet.
- Real humans: 855-822-7770
US + Worldwide Shipping
BASSBOSS products are shipped via palletized freight to a local freight terminal or right to your door.
Warranty & Support
The BASSBOSS Sound Defense warranty offers the peace of mind of knowing you're covered.
Submit a service request →Sweet and strong,
packs a wallop.
Ultra-deep, liquid BASS.
A rum punch of bass: sweet, deep, and powerful. Horn-loaded for the attack, vented for the extension, giving you total dance floor mastery.
You really can't have too many. 😉
A deep reserve of class-D continuous power means the amplifier is never the bottleneck. Higher rail voltages slam the peaks, while steady sustained output keeps the low end liquid.
The secret ingredient is powerful DSP limiting and protection.
Five limiters work in concert, including thermal, excursion, and clipping, each protecting the driver differently. The woofer can take everything you throw at it while the transients stay clean.
Warning: BASSBOSS is addictive.
The 6th-order bandpass hybrid has a large vented chamber tuned low, front-loaded onto a short horn that boosts sensitivity in the upper range. This combo creates a beautiful blend of impactful mid-bass and the low-lows down to 28 Hz.
Save your presets for max impact.
96 kHz DSP with 8 onboard presets, switchable in real time with zero dropout. Store up to 100 with ControlBASS. Dial in once, save, rinse and repeat.
Parties anywhere, in any weather.
The auto-sensing 100–240VAC power supply provides reliable performance worldwide, and IP65 waterproof connectors with weather-sealed inputs keep the electronics safe from the elements.
Take a sip.
VS21-MK3 Single 21″ Powered Subwoofer full product walkthrough.
Getting Deep
The VS21-MK3 in its natural environment:
art cars, epic clubs, off-the-grid festivals and backyard parties.
The All New
ControlBASS
With ControlBASS, any laptop becomes a full system controller over standard Ethernet. Monitor, tune, and recall presets, without touching a cabinet. Free for macOS and Windows.
Onboard presets tuned for each cabinet, and up to 100 presets via ControlBASS. An all-new GUI is coming soon.
8 presets.
Instant recall.
Manage, name, and recall, all over Ethernet.
- →Explore illustrative filter curves
- →Up to 100 stored presets via ControlBASS
- →Special presets for stacked / cardioid use
PRESET 01
VS21 27-70LR
HP 27 Hz BW · LP 70 Hz LR
01
02
03
04
05
06
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08
Acoustical
| Loudspeaker Type | Single 21″ self-powered subwoofer |
| Frequency Response | 28-100 Hz (±3 dB) |
| Max Sustained SPL | 135 dB SPL @ 1m half-space |
| Peak SPL | 138 dB SPL @ 1m half-space |
| Dispersion | 360° × 360°: Cardioid mode w/ multiple cabinets |
| Transducers | 1 × 21″ (540mm) neodymium · 4.5″ (115mm) voice coil · vented short-horn hybrid |
Amplifier / DSP
| Amplifier | 2500W Class D |
| DSP | 96 kHz · 8 onboard presets · up to 100 via ControlBASS |
| Voltage | 100–240V AC, 50–60 Hz (auto-sensing) |
| Current Draw | 4.6A nominal @ 120V / 2.3A nominal @ 240V |
| Cooling | Passive heat sink + woofer airflow; 2× blower fans auto-engage under peak load |
| Protection | Multi-stage limiting: thermal, excursion, clipping |
Connections
| Signal Input | XLR-F balanced |
| Signal Output | XLR-M balanced: direct pass-through only |
| Network (×2) | EtherCON RJ45: 2-port switch, Milan AVB ready |
| Power In | Neutrik powerCON True 1 TOP (IP65): 15A / 1800W |
| Power Out | Neutrik powerCON True 1 female: 10A / 1200W |
| Mains Plug | NEMA 5-15 (Edison): included |
| Max Cable Run | 100m per AVB segment |
| DSP Control | ControlBASS software (macOS / Windows) |
Physical
| Enclosure | Vented short-horn hybrid (6th-order): CNC-machined 18mm Baltic Birch plywood, dado joinery |
| Fly System | 16 × M10 threaded fly points |
| Handles | 8 integrated handles |
| Pole Sockets | 4 × 35mm |
| Feet | 12 interlocking rubber feet + 8 interlocking foot pockets |
| Finish | High-pressure bonded polyurea: textured black |
| Grille | Perforated powder-coated steel |
| Dimensions (H×W×D) | 37.5″ × 24″ × 36″ (95cm × 61cm × 91cm) with feet |
| Net Weight | 180 lbs (82 kg) |
| Shipping Weight | 210 lbs (95 kg) |
Compare Subs Line
See how the VS21-MK3 compares to the rest of the BASSBOSS low-end product line.
BB15-MK3
Single 15" powered subwoofer
$2,995
- LF40-115Hz
- Max SPL127 dB
- AMP2,500 W
- DRVSingle 15″
DJ18S-MK3
Single 18" powered subwoofer
$3,495
- LF27 – 100Hz
- Max SPL129 dB
- AMP2,500 W
- DRVSingle 18″
SSP118-MK3
Single 18" powered subwoofer
$3,995
- LF30 – 100Hz
- Max SPL130 dB
- AMP2,500 W
- DRVSingle 18″
This Model
VS21-MK3
Single 21" powered subwoofer
$4,995
- LF28 - 100Hz
- Max SPL135 dB
- AMP2,500 W
- DRVSingle 21″
SSP215-MK3
Dual 15" powered subwoofer
$5,495
- LF35 – 100Hz
- Max SPL133 dB
- AMP5,000 W
- DRVDual 15″
SSP218-MK3
Dual 18" powered subwoofer
$5,995
- LF30 – 100Hz
- Max SPL136 dB
- AMP5,000 W
- DRVDual 18″
ZV28-MK3
Dual 18" powered subwoofer
$5,995
- LF23 – 90Hz
- Max SPL134 dB
- AMP5,000 W
- DRVDual 18″
Makara-MK3
Double 21" powered subwoofer
$7,995
- LF23 – 100 Hz
- Max SPL140 dB
- AMP5,000 W
- DRVDual 21″
Kraken-MK3
Quad 21" powered subwoofer
$17,995
- LF27 – 100 Hz
- Max SPL145 dB
- AMP10,000 W
- DRVQuad 21″
Subs to Tops Ratios.
The VS21-MK3 shines in complete BASSBOSS systems: sub and tops, dialed in and ready to go.
SV9-MK3
Single 9" powered top
1× eachDetails →
DiaMon-MK3
Single 12" powered top
1-2× eachDetails →
DV12-MK3
Single 12" powered top
1-3× eachDetails →
CCM12-MK3
Single 12" powered stage monitor
1-2× eachDetails →
Attuned12
Single 12" powered loudspeaker
1-3× eachDetails →
AT212-MK3
Dual 12" powered top
1-6× eachDetails →
AT312-MK3
Triple 12" powered top
1-4× eachDetails →
MFLA-MK3
Dual 12" powered line array
3-6× eachDetails →
Krakatoa
Quintuple 18" powered point source
∞😉🤯 up to 32× eachDetails →
Popular Systems.
The VS21-MK3 in complete systems: subs and tops, dialed in and ready to go.
Production Pair
AT212-MK3
Dual 12″ powered two-way
$4,995
Pairs with the VS21 for a high-output production rig that still loads in one truck.
View AT212-MK3 →
Most Popular
DV12-MK3
12″ powered full-range
$3,495
Matched power, portability, and punch. The go-to DJ rig that loads fast and sounds huge.
View DV12-MK3 →
Compact Pair
DiaMon-MK3
12″ powered coaxial top
$2,795
Ultra-portable, ultra-high-output system. Maximum impact from minimum real estate.
View DiaMon-MK3 →
Monitor Pair
CCM12-MK3
12″ powered coaxial monitor
$2,295
Add a coaxial monitor to the VS21 for a flexible DJ rig that covers both front-of-house and stage.
View CCM12-MK3 →
Design your ideal system with our self-serve tools.
Interactive chart
System Match
Frequency Range Overlap: see which products cover which ranges, and where a top and sub pair overlaps or leaves a gap.
Sound education
SPL vs Distance
Sound drops with the inverse square law. See how much level you lose at every distance from the source.
Sound education
How Low Can You Go?
Play tones through your own speakers and sweep down to find where they tap out, then see what a BASSBOSS sub would add.
System design
PredictBASS
Model bass coverage in any space before load-in. Drop in subs, see the dead zones, optimize placement.
Outfit your rig.
Heavy-duty, production-ready carts and covers.
Vertical Wheel Cart
Retail $295
Carries 1 VS21-MK3 cabinet, upright.
- 18 mm Baltic birch, polyurea coated. Sockets accept the cabinet feet. 4 locking casters. Rated to 1,400 lb.
Horizontal Wheel Cart
Retail $395
Carries up to 3 VS21-MK3 cabinets, horizontal.
- 18 mm Baltic birch, polyurea coated. Sockets accept the cabinet feet. 4 locking casters.
VS21-MK3 Cover
from $480
Protect your gear with our heavy-duty covers. Built to survive abuse!
- F1 Maximum Protection
- BASSBOSS covers are American-made from highest-protection F1 1,000 denier Cordura nylon: abrasion resistant and water repellent. Inside, a lightweight, impact-resistant foam layer is bonded to a soft tricot lining that won't scuff your cab. Upright, grille forward, 4 handle cut-outs, finished with an embroidered BASSBOSS logo.
Ships in three weeks.
Parts + labor
guaranteed.
3
Year Warranty
Parts and labor. No fine print.
Every BASSBOSS product ships with Sound Defense 3-year comprehensive warranty for parts and labor. Failed under normal use? We got you.
∞
Firmware Updates
Your system gets better + better.
ControlBASS firmware updates are free, forever. Performance improvements, new features, and expanded preset libraries, as they happen.
Expert Support
We get it! We've done this gig.
Our support team includes working engineers. They know the product because they've run it. Phone, email or chat, we're here to help.
30-day returns. No questions asked.
Every direct purchase from BASSBOSS is backed by a 30-day, no-questions-asked money-back guarantee.
Return policy →VS21-MK3
Single 21″ Powered Subwoofer
Punch, Power, Purity, PLUR
