Single 18 inch self-powered vented direct-radiating stackable subwoofer. 2500W Class D amplification with comprehensive 96kHz onboard DSP. 30 to 100 Hz response. Cardioid mode available with multiple cabinets. The mobile DJ and intimate-production scaling block: each SSP118 covers roughly 200 to 250 guests, stacks vertically with optional casters, and pairs naturally with the DV12 mobile DJ workhorse.
$3,995 each
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Recommended accessories
SSP118 Padded Transport Cover
Heavy-duty padded nylon cover, custom-fit to the SSP118. Embroidered BASSBOSS logo. 4 to 6 weeks lead time.
$230cover with logo
SSP118 Double-Stack Cover
Heavy-duty padded nylon cover for two SSP118 stacked. Embroidered BASSBOSS logo. Standard rental and install double-stack solution.
$470covers 2 stacked cabinets
WSSP118 Wheel Cart
SSP118 wheel dolly cart with foot pockets to secure the cabinet. Allows stacking multiple subs on one cart. 4 locking casters. 635 kg capacity.
$285stack and roll
Driver
1×18″vented direct-radiating
Amplification
2500WClass D with DSP
Response
30Hzto 100 Hz; cardioid capable
Weight
140lb64 kg, install / rental scaling
What we hear from owners
What SSP118‑MK3 owners report after the first 30 days
Patterns from mobile DJ scaling, wedding and corporate operators, and intimate live productions.
01
200 to 250 guests per sub is the working math
A stereo SSP118 pair under DV12 tops handles most 400 to 500 guest weddings and corporate events. One sub per side is the standard mobile DJ scale-up from a single 18 mobile sub. Four cabinets total for 800 to 1,000 guest events when programming stays inside the SSP118 working range.
02
DV12 over SSP118 is the standard pairing
The mobile DJ workhorse over the SSP118 single 18 stackable sub is the upgrade rig from DV12 + DJ18S. DV12 brings the horn-loaded mid-high; SSP118 brings the stack-and-scale low end. Mobile DJs scaling into 500+ guest work pick this rig.
03
Intimate live production is the surprise category
For live bands, acoustic-plus-band sets, and theatrical productions at 200 to 400 cap rooms, the SSP118 keeps up with the band without overpowering the mid-high tops. The cabinet sits cleanly for live music where bigger subs would dominate the mix.
04
Stacking is the architectural advantage
Owners come to SSP118 specifically for the cabinet shape: engineered to stack vertically with the matching double-stack cover and optional casters. For mobile DJ rigs scaling up, two cabinets stacked per side replaces a single dual 18 with more deployment flexibility.
05
Cardioid mode helps in narrow rooms
Banquet halls, ceremony rooms, and narrow venue geometries benefit from 2-cabinet cardioid arrays. The DSP handles alignment; back-wall reflection and neighbor concerns drop meaningfully without losing dance-floor SPL.
06
Pairs cleanly with CCM12 and DiaMon too
For ceremony plus reception combos where the rig swaps tops mid-event, SSP118 under CCM12 or DiaMon tops covers the application. The single-18 sub does not overspecify the system for the smaller tops, and stacks if the room grows.
Decision framework
Is the SSP118‑MK3 right for you?
Buy it for
Mobile DJs and AV operators scaling from single 18 mobile rigs into 400 to 800 cap wedding and corporate work. Production crews running intimate live music and theatrical events at 200 to 400 cap rooms. Stereo SSP118 pairs under DV12‑MK3 mobile DJ tops, or under CCM12‑MK3 and DiaMon‑MK3 tops for ceremony plus reception rigs. Operators who want stack-and-scale architecture (two SSP118 per side for the bigger nights) instead of buying a single dual 18.
Look elsewhere if
You program bass-forward music where deeper extension defines the gig; the DJ18S‑MK3 single 18 reaches lower from a more mobile cabinet, and the VS21‑MK3 single 21 reaches deeper still. You are running 700 plus capacity weddings or corporate; at that scale it is more cost-effective to start with VS21‑MK3 single 21 subs than to stack 4 SSP118 per side. You are running nightclub or club FOH at 600 plus capacity, where the room calls for VS21‑MK3, ZV28‑MK3, Makara‑MK3, or SSP218‑MK3 instead. Pairing under AT212‑MK3 tops is not balanced unless you run at least 4 SSP118 per side; for AT212 production, take a step to a dual-driver sub.
Get a real quote
Send a system spec, not a price shopping number
Tell us the room, the audience size, and what you run today. We come back with the right pair, freight, and price. One short form.
Roughly 200 to 250 guests per cabinet under appropriate tops. A stereo pair handles most 400 to 500 guest weddings and corporate events. Stack a second SSP118 per side for 800 to 1,000 guest events when programming stays inside the SSP118 working range.
Q2
Why pair SSP118 with DV12 instead of AT212?
AT212‑MK3 horn-loaded tops are shaped for larger production and outdoor work where the sub array is also production-grade. Pairing AT212 over one or two SSP118 is unbalanced; the tops will overrun the subs. For AT212 production, go up to a dual-driver sub (SSP218‑MK3 or larger) or plan a minimum of 4 SSP118 per side.
Q3
Can I stack 4 SSP118 per side?
Yes. The cabinet is meant for vertical stacking. The double-stack cover handles 2 cabinets; 4 per side typically uses caster-mounted cabinets at the bottom of each stack. That said, for 4-cabinet stacks at wedding scale, the VS21‑MK3 single 21 sub is usually a more cost-effective starting point.
Q4
How does cardioid mode work?
Preset-driven via the onboard 96kHz DSP. Minimum 2 cabinets per array; 3 or 4 for stronger rejection. Standard in banquet halls and ceremony rooms where back-wall reflection and neighbor concerns matter.
Q5
How does SSP118 compare to other single 18 subs?
BASSBOSS amp, BASSBOSS DSP, and the cabinet alignment that runs the production line. The SSP118 delivers consistent character at sustained output that lower-tier single 18 subs do not match. The price reflects what is in the cabinet.
System design
This pairs well with
SSP118 is the mobile DJ scaling block for weddings, corporate, and intimate live productions. Tops define the rig.
The mobile DJ workhorse over SSP118 single 18 stackable sub: the go-to wedding and corporate scale-up rig at 400 to 800 cap. Stack a second SSP118 per side for larger.
CCM12 coaxial tops over SSP118 sub for ceremony plus reception rigs. Same sub footprint, lighter top, clean coverage for vocal-forward ceremony and dance-floor reception.
DiaMon coaxial 12 inch top over SSP118 sub for operators who prioritize lighter top-end loading without giving up the stack-and-scale architecture below.
Field video
SSP118‑MK3 in the wild
Owner reviews and field recordings.
SSP118-MK3 overview
SSP118-MK3 in deployment
Honest answers
Doubts our clients initially had
Before they bought, here is what made buyers hesitate. We talked it through. Short version.
D1
For 700 plus weddings, should we stack SSP118 or upgrade?
Upgrade. At 700 to 1,000 guest weddings, four SSP118 per side gets the job done but the math runs cheaper if you start with VS21‑MK3 single 21 subs. Same wedding rig, deeper extension, fewer cabinets. SSP118 is built for the 400 to 500 guest standard with a 200 to 250 guest scale-up per added cabinet.
D2
Why not buy a dual 18 instead of stacking two single 18?
Different cabinet topology. Two SSP118 stacked is two discrete cabinets, two discrete amps, and the option to deploy them separately. The SSP218‑MK3 dual 18 is one cabinet with both drivers; cheaper per driver but less flexible.
D3
Cardioid mode adds complexity.
It is preset-driven and requires no outboard processor. The 96kHz DSP handles alignment. The "complexity" is loading the cardioid preset and orienting the rear cabinet correctly. Manageable.
D4
I want to hear a stack before buying.
SSP118 stack demos route through regional install integrators and rental companies. Send your city and the application; we can often route an introduction.
