Quad 21 inch 6th-order vented short-horn hybrid powered subwoofer. Four neodymium 21 inch woofers with 4.5 inch split-wound voice coils, each driven by a discrete 2500W amplifier (10,000W Class D total). 27 to 100 Hz response. Cardioid mode available with multiple cabinets. The BASSBOSS flagship subwoofer for arena, stadium, and large festival production.
$17,995 each
Quote includes shipping, system bundles, and current lead time.
What Kraken‑MK3 owners report after the first arena run
Patterns from arena production, festival main subs, and stadium installs.
01
One Kraken does the work of two Makaras
The quad 21 topology with four discrete 2500W amps delivers sustained output that meaningfully reduces sub-array cabinet count at arena and stadium scale. Production planning becomes simpler when one Kraken replaces two Makaras.
02
27 Hz at 10,000W is the foundation
For festival main subs and arena production, the Kraken delivers the bottom-octave foundation that smaller cabinets cannot reach at the same SPL. The headroom is real and audible.
03
Cardioid mode at this scale changes the production math
Multi-Kraken cardioid arrays at festivals and arenas clean up the stage, the FOH position, and neighbor complaints. The DSP handles alignment; production saves the outboard processor budget.
04
The Stackatoa is the flagship rig
Kraken + Makara + Krakatoa vertically stacked is the BASSBOSS flagship configuration: massive SPL from a remarkably small 4 ft x 3 ft x 10 ft 4 in footprint. For arena and stadium where audience space matters.
05
460 pounds is real, the cart matters
The Kraken-H-WC horizontal cart with 1400 lb capacity handles multi-cabinet transport. Forklift access is the standard load-in solution at arena venues. The cabinet is made for fixed-position production deployment.
06
Resale tracks the production market
Used Kraken cabinets move through arena and festival production company groups. The cabinet has a clear identity at the top of the BASSBOSS subwoofer line, which keeps resale tight.
Decision framework
Is the Kraken‑MK3 right for you?
Buy it for
Arena and stadium production where 27 Hz at sustained output defines the rig. Festival mains for 5,000 plus capacity events. Permanent installs in arena-sized venues, stadium-scale clubs, and large performance spaces. Production companies running the BASSBOSS flagship line. Stackatoa configurations combining Kraken + Makara + Krakatoa for compact arena rigs. Pairing under MFLA‑MK3 line arrays or Krakatoa coaxial tops.
Look elsewhere if
You run rooms under 1500 capacity, where the Makara‑MK3 dual 21 production sub delivers comparable extension at half the footprint and weight. You need ultra-low extended-depth focus (below 25 Hz), where the ZV28‑MK3 dual 18 is built for that specific role. You need mobile or rental flexibility, where 460 lbs per cabinet is the wrong cabinet category.
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.
Makara‑MK3 is the dual 21 production sub for festival and nightclub at 600 to 2000 cap. Kraken is the quad 21 flagship for arena and stadium at 2000 plus cap. Most buyers land on Makara; Kraken is the answer when the room and the rigging budget call for it. Same neodymium 21 inch driver platform; Kraken scales to four drivers and four discrete amps.
Q2
What is the Stackatoa?
BASSBOSS-defined flagship configuration: Kraken quad 21 sub at the bottom, Makara dual 21 sub in the middle, Krakatoa quintuple 18 full-range coaxial point source at the top. Six 21 inch subs + four 18 inch woofers + 18 inch low-mid + coaxial mid-high in a 4 ft x 3 ft footprint, 10 ft 4 in tall. For arena where audience floor space matters.
Q3
What tops pair with the Kraken?
MFLA‑MK3 line arrays for festival and arena production. Krakatoa for the Stackatoa flagship configuration where the point-source coaxial handles mid-high.
Q4
Can the Kraken run cardioid?
Yes. Cardioid mode is preset-driven via onboard 96kHz DSP. Standard at festival and arena scale where stage and back-wall control matter. The DSP handles alignment; no outboard processor.
Q5
How is the Kraken transported?
460 lbs per cabinet. The Kraken-H-WC horizontal cart (1400 lb capacity) handles stack transport. Forklift access at the venue is the standard load-in. For arena and stadium fixed-position deployment, the cabinet stays in place.
Q6
Does the Kraken need outboard amplification?
No. Four discrete 2500W amps inside the cabinet (10,000W Class D total), one per driver. Each driver runs in its linear range under sustained output. No outboard amplifier or controller required.
System design
This pairs well with
Kraken is the BASSBOSS flagship sub. Tops match the arena scale.
MFLA line arrays over Kraken sub arrays: the standard BASSBOSS festival and arena production rig. Scales by adding line array elements and Kraken cabinets.
Stackatoa: Kraken + Makara + Krakatoa vertically stacked. Six 21 inch subs + four 18 inch woofers + coaxial mid-high in a compact arena footprint. The BASSBOSS reference flagship.
Many production rigs combine Kraken at the FOH position with Makara at the wings and side fills. The dual 21 + quad 21 combination scales sustained output without overspecifying the wings.
Field video
Kraken‑MK3 in the wild
Owner reviews and field recordings.
Kraken-MK3 overview
Kraken-MK3 in the field
Kraken versus Makara comparison
Honest answers
Doubts our clients initially had
Before they bought, here is what made buyers hesitate. We talked it through. Short version.
D1
$17,995 per cabinet is significant.
It is. The price reflects four 21 inch neodymium drivers, four discrete 2500W amps, the 6th-order hybrid cabinet alignment, and the production-grade construction. For arena production, the cabinet count savings versus smaller cabinets often justifies the per-unit price.
D2
460 pounds per cabinet is real.
It is. The Kraken-H-WC cart handles transport with 1400 lb capacity. Forklift access at the venue is the standard load-in. For fixed-position arena and stadium production deployment, the weight is part of the design philosophy.
D3
Do we really need 27 Hz extension at arena scale?
For EDM, cumbias, hip-hop, and modern festival programming, yes. The bottom octave is where the music physically lives. At arena scale, the Kraken delivers that foundation at SPL levels smaller cabinets cannot sustain.
D4
Why not just buy more Makaras?
For most production, that is the answer. For arena and stadium scale where rigging weight, cabinet count, and venue square footage all matter, the Kraken cabinet topology reduces the sub-array footprint meaningfully. Production planning gets simpler.
D5
How does it compare to L-Acoustics KS28 or d&b J-INFRA at this scale?
Different brands target different segments. The Kraken holds its own on sustained output and 27 Hz extension. Pricing typically lands below the European premium tier at comparable measured output. Most production decisions at this scale come down to existing inventory, regional support, and the specific room.
D6
I want to hear a Kraken rig before committing.
Demo opportunities exist at festival sites and production company demo events. The BASSBOSS demo room in Austin runs full Stackatoa builds. Send your timing and region; we can route a listening opportunity.
