SSP218-MK3Dual 18″ Powered Subwoofer

$5,995More Pricing →

BrickHouse.

SSP218-MK3

Name: SSP218-MK3
Brand: BASSBOSS
SKU: SSP218-MK3
Price: 5995 USD
Availability: InStock

Dual 18″ Powered Subwoofer

Let's Talk Gear.

5000W

Class D Amplifier

136dB

Max Sustained SPL

30Hz

Low extension

2×18″

Neodymium woofers

Built for
these gigs.

Need a sub that trucks well and performs every night?
SSP218-MK3 is the answer.
Different gig? We'll point you to the right sub.

Use SSP218-MK3 for

Mid-size touring production
Club and venue installs
Houses of worship
Festival support stage

Probably not the move for

OWN THE
ROOM

The double-18, done right.

Two 18″ neodymium drivers and 5,000 watts. The original road warrior, battle-tested across clubs, festivals, and touring rigs for years. There are plenty of double-18 subs in the world. This is the one that's done right. Truck-packs easy, carries a room.

SSP218-MK3 front panel in dramatic lighting

Five thousand watts. No power-sharing.

5,000W across two discrete 2,500W channels: each driver gets its own. No power-sharing, no thermal compromise between drivers. Higher rail voltages slam the peaks while sustained output keeps the low end liquid.

The secret ingredient is powerful DSP limiting.

Five limiters work in concert, including thermal, excursion, and clipping, each protecting the drivers differently. Built so deep into the DSP you'll never catch them working: the drivers take everything you throw at them while the transients stay clean. Push it stupid-loud and it stays bulletproof.

Parties anywhere, in any weather.

An auto-sensing 100–240VAC power supply delivers reliable performance worldwide, and a high-pressure polyurea shell with IP65-rated connectors keeps the electronics safe from the elements. Plug in anywhere, play anywhere.

SSP218-MK3 cabinet detail showing build quality

Built like furniture. Armored like a tank.

CNC-machined 18mm Baltic Birch with dado joinery and pervasive internal bracing, wrapped in impact-resistant polyurea. Steel bar handles and interlocking nylon sliders for ground-stack precision. Built to still be working the day you retire.

Eleven presets on the box. Up to 100 in the app.

96 kHz DSP with 11 onboard presets, switchable in real time, plus storage for up to 100 over the network with ControlBASS. Dial in your repeat venues once, save them, and every setup after is quicker.

Getting Deep

The SSP218-MK3 in its natural environment,
touring rigs, club installs, and anywhere the gig demands reliability every night.

Diving Deep with the Fam.

Aaron Miller

Booking, North Door Austin

10 out of 10. Our four SSP218 Subwoofers are amazing and our room sounds beautiful! Nothing but rave reviews.

DJ Hatcha

DJ Hatcha loves this system

I love this F'ing System. Dubstep for Life. (Written on the SSP218 subs at nightclub Barcelona Austin!)

Gregory Selph

Operating Partner | Treehouse Miami

After Ultra Music Festival (2012) David demoed a system for us. His demo was impressive to say the least – everything attached to the walls shaking and falling down. The equipment wasn’t even working hard and it had just taken beating after beating in the Miami heat and salty humidity at Ultra.

Jay Tilyard

Managing Partner | The Chop Shop | Charlotte, NC

Our SSP218 Subs are performing excellently! The subs shake the venue and our audiences have noticed the drastic improvement.

Get
Deep.

SSP218-MK3

Dual 18″ Powered Subwoofer

5000 W Class D Amplifier
136 dB Max Sustained SPL
30 Hz Low extension
2×18″ Neodymium woofers

Retail

$5,995USD

Talk to the BASSBOSS Team

Finance It Pay over time with Synchrony. Subject to credit approval. Apply Now Lease-to-own also available through Hampton Ridge Financial.

Free freight on every speaker in the lower 48.
30-day money-back guarantee. We got your back.*
3-year warranty, 6 on the cabinet.
Real humans: 855-822-7770

*Return freight is free on gear (not apparel) for orders up to $20,000 in the lower 48: like-new in the original packaging, within 30 days of delivery, one free return per customer, pickup arranged by our team. Above $20,000 or outside the lower 48, please contact us for assistance. Return policy

Free Freight, Lower 48

BASSBOSS products are shipped via palletized freight to a local freight terminal or right to your door. Alaska, Hawaii or outside the US? Our team or a local dealer will take care of you.

Warranty & Support

The BASSBOSS Sound Defense warranty offers the peace of mind of knowing you're covered.

Submit a service request →

Outfit your rig.

Heavy-duty, production-ready carts and covers.

Accessories

Horizontal Wheel Cart

Retail $395

Carries up to 4 SSP218-MK3 cabinets. Also fits SSP215-MK3.

SSP218-MK3 Cover

from $345

Protect your gear with our heavy-duty covers. Built to survive abuse!

Style

Single$345Double stack$585

Padding

Add zippered cable pocket (+$25)

Ships in three weeks.

Parts + labor
guaranteed.

Year Warranty

3-year warranty, 6 on cabinet

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 money-back guarantee. We got your back.*

Every direct purchase from BASSBOSS is backed by a 30-day money-back guarantee, with free freight both ways on gear.*

Return policy →

Acoustical

Loudspeaker Type	Dual 18″ self-powered subwoofer
Frequency Response	30–100 Hz (±3 dB)
Max Sustained SPL	136 dB @ 1m half-space
Peak SPL	139 dB
Dispersion	360° / Cardioid w/ multi-cabinet
Transducers	2 × 18″ (457mm) neodymium · 4″ voice coils

Amplifier / DSP

Amplifier	5000W Class D (2 × 2500W)
DSP	96 kHz · 11 onboard presets · up to 100 via ControlBASS
Voltage	100–240V AC, 50–60 Hz (auto-sensing)
Current Draw	9A @ 120V / 4.5A @ 240V
Cooling	Blower fans, auto thermal management
Protection	Multi-stage limiting, thermal, short-circuit, DC offset

Connections

Signal Input	XLR-F balanced
Signal Output	XLR-M balanced pass-through
Power In	Neutrik powerCON True 1 TOP (IP65)
Power Out	Neutrik powerCON True 1 female (outlet capacity 6A / 720W @ 120V)
Mains Plug	NEMA 5-15 (Edison): 120V
Max Cable Run	100m per AVB segment
DSP Control	ControlBASS software (macOS / Windows)

Physical

Enclosure	Direct-radiating vented enclosure: CNC-machined 18mm Baltic Birch plywood · dado joinery · extensive bracing
Fly System	16 × M10 threaded fly points
Handles	4 steel bar handles
Feet	Interlocking foot pockets: stable multi-cabinet stacking
Finish	Polyurea coating: waterproof, impact-resistant, textured black
Dimensions (H×W×D)	22.5″ × 48″ × 29.5″ (23.25″ high with feet)
Net Weight	199 lbs (90 kg)

Compare Subs Line

See how the SSP218-MK3 compares to the rest of the BASSBOSS low-end product line.

Full Comparison in CompareBASS →Compare all products

Head to head

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″

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″

This Model

SSP218-MK3

Dual 18" powered subwoofer

$5,995

LF30 – 100Hz
Max SPL136 dB
AMP5,000 W
DRVDual 18″

View Full Specs ↓

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 SSP218-MK3 Subwoofer plays nice with every BASSBOSS top. Click any model to see how many SSP218-MK3s it can actually drive. The answer will surprise you.

SV9-MK3

Single 9" powered top

1× eachDetails →

CCM12-MK3

Single 12" powered stage monitor

1-2× eachDetails →

DiaMon-MK3

Single 12" powered top

1-2× eachDetails →

DV12-MK3

Single 12" powered top

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 SSP218-MK3 in complete systems: subs and tops, dialed in and ready to go.

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.

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.

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.

→

Real-time remote control

Adjust gain, EQ, and delay without touching a cab.

→

Live system monitoring

Track levels, temperatures, and gain reduction across every unit.

→

100 stored presets

Onboard presets tuned for each cabinet, accessible from the amp.

Download ControlBASS ↗︎

Explore the factory presets

See what each preset changes and find a starting point for your setup. Keep the cabinet's preset number and name handy, then listen and adjust on site.

→Explore illustrative filter curves
→Up to 100 stored presets via ControlBASS
→Explore this model's additional preset options

PRESET 01

SSP218 30-70LR

HP 30 Hz BW · LP 70 Hz LR

11 presets.
Instant recall.

Select a preset to explore its illustrative curve. The model draws each preset’s own Linkwitz-Riley or Butterworth filters at 24 dB/octave; it does not represent measured loudspeaker response or cardioid coverage.

Learn how to use the presets →

PRESET 01

70 Hz upper crossover

Cabinet display: SSP218 30-70LR

Use it when your tops take over at 70 Hz or higher with a Linkwitz-Riley high-pass filter. Gradually reduces rumble below 30 Hz.

Low-cut:: 30 Hz · Butterworth
Upper crossover:: 70 Hz · Linkwitz-Riley

Illustrative high-pass and low-pass filter response. This does not show the complete loudspeaker response, room coverage or all DSP processing.

Up to 100 stored presets via ControlBASS

Manage, name, and recall: all over Ethernet.

Select a preset

Start here, then listen and adjust on site. Relative levels, placement, the room and your speaker combination affect the result.

Linkwitz-Riley low-pass: try tops with an LR high-pass at the same frequency or higher. Relative levels can shift the acoustic crossover; listen and adjust on site.

Filter details and terminology

Low-cut (high-pass): Gradually reduces output toward lower frequencies. The response is already reduced at its cutoff; it does not stop abruptly there.
Upper crossover (low-pass): Gradually reduces output toward higher frequencies. Subwoofer and top responses overlap around the crossover.
Linkwitz-Riley (LR): A recommended starting point for the sub/top crossover. For a top's LR high-pass, try a sub's LR low-pass at the same frequency or lower. For a sub's LR low-pass, try a top's LR high-pass at the same frequency or higher. Verify the combination on site.
Butterworth (BW): A maximally flat passband with less attenuation around the cutoff than a Linkwitz-Riley filter of the same order. Lower-frequency BW high-pass presets are useful for full-range bass extension. Start with LR presets for a sub/top crossover.

PRESET 01: Cardioid · rear-facing cabinet

Reduce bass behind the system.

A cardioid setup uses forward- and rear-facing cabinets to reduce rearward bass. Apply the cardioid preset to the cabinet facing away from the audience. BASSBOSS recommends two forward-facing cabinets for each rear-facing cabinet. Placement, spacing, frequency and relative levels affect the result.

Arrange the cabinets.

Start with BASSBOSS’s recommended two-forward, one-rear configuration and the model’s setup guidance.

Set the rear-facing cabinet.

Select the appropriate cardioid preset on that cabinet. Use the appropriate forward-facing presets on the other cabinets.

Check the result.

Listen and measure in front of and behind the system, then adjust the setup as needed.

Illustrative cardioid coverage: more bass toward the audience and reduced output behind the array. Actual coverage depends on the setup.

SSP218-MK3

Built forthese gigs.

Use SSP218-MK3 for

Probably not the move for

In Action.

OWN THEROOM

The double-18, done right.

Five thousand watts. No power-sharing.

The secret ingredient is powerful DSP limiting.

Parties anywhere, in any weather.

Built like furniture. Armored like a tank.

Eleven presets on the box. Up to 100 in the app.

Getting Deep

Diving Deep with the Fam.

GetDeep.

SSP218-MK3

Outfit your rig.

Horizontal Wheel Cart

SSP218-MK3 Cover

Parts + laborguaranteed.

3-year warranty, 6 on cabinet

Your system gets better + better.

We get it! We've done this gig.

30-day money-back guarantee. We got your back.*

Specs + Resources

Compare Subs Line

Plan Your System.

Subs to Tops Ratios.

Popular Systems.

System Match

SPL vs Distance

How Low Can You Go?

PredictBASS

ControlBASS + Presets

The All NewControlBASS

Explore the factory presets

SSP218-MK3

Built forthese gigs.

Use SSP218-MK3 for

Probably not the move for

In Action.

OWN THEROOM

The double-18, done right.

Five thousand watts. No power-sharing.

The secret ingredient is powerful DSP limiting.

Parties anywhere, in any weather.

Built like furniture. Armored like a tank.

Eleven presets on the box. Up to 100 in the app.

Getting Deep

Diving Deep with the Fam.

GetDeep.

SSP218-MK3

Outfit your rig.

Horizontal Wheel Cart

SSP218-MK3 Cover

Parts + laborguaranteed.

3-year warranty, 6 on cabinet

Your system gets better + better.

We get it! We've done this gig.

30-day money-back guarantee. We got your back.*

Specs + Resources

Compare Subs Line

Plan Your System.

Subs to Tops Ratios.

Popular Systems.

System Match

SPL vs Distance

How Low Can You Go?

PredictBASS

ControlBASS + Presets

The All NewControlBASS

Explore the factory presets

Built for
these gigs.

OWN THE
ROOM

Get
Deep.

Parts + labor
guaranteed.

The All New
ControlBASS

Built for
these gigs.

OWN THE
ROOM

Get
Deep.

Parts + labor
guaranteed.

The All New
ControlBASS