SPECIFICATION / 01
Technical Info
Transducers
2 x 18in neodymium drivers
Frequency Response
25Hz - 110Hz (-10dB)
Maximum SPL
142dB peak at 1m
Amplification
Passive (requires L-Acoustics amplified controller)
Connector
1 x 4-point SpeakON
Weight
79kg
Dimensions
1340 x 719 x 565mm
Cabinet Material
Baltic beech and birch plywood
Product video
PRODUCT NOTES / 02
Additional Information
The L-Acoustics KS28 is a high-output flyable subwoofer housing two 18-inch neodymium drivers in a bass-reflex enclosure with laminar-flow vents, delivering a usable bandwidth of 25-110Hz and a peak SPL of 142dB at 1m, making it a mainstay of large-format touring and festival low-end.
As a passive design it’s driven by L-Acoustics’ dedicated amplified controllers, connects via a single 4-point SpeakON, and is built from Baltic beech and birch plywood with six handles and full L-Acoustics rigging compatibility for flying alongside other A and K Series enclosures.
03 / TECH SPEC INTAKE
GOT A TECH SPEC
YOU NEED TO SUPPLY?
Let us do the hard work. Upload your spec and we’ll match as much of it as possible to our available stock. If something’s not available, we’ll come back with close alternatives, not a dead end.
Takes a couple of minutes. Upload the doc, tell us who you are, then give us your dates. We’ll take it from there.
01 Upload your PDF, Word or Excel specification
02 Add your name and email
03 Give us your collection and return dates
SEND YOUR SPEC
We’ll review your list against current stock and return a trade quote with close alternatives where needed.
UPLOAD TECH SPEC
PDF, Word or Excel — confirm accepted formats with the hire desk.
For an urgent job or a larger production, call the hire desk after sending your enquiry.
Build your hire list from our full trade catalogue, then send it over and we’ll confirm availability directly.
TRADE DESK / READY WHEN YOU ARE
Answers on delivery, trade pricing, account setup and hire periods — all in one place.
COMMON QUESTIONS / FAST ANSWERS
THE GEAR HOUSE
Here when the details matter.
DETAIL / 01
Trade pricing, not list pricing
Day and week rates built for how productions actually budget.
DETAIL / 02
A straight answer on availability
Submit an enquiry or call us, and we'll confirm what's free. No waiting around.
DETAIL / 03
UK-wide delivery
Free delivery over £1000+VAT, mainland coverage as standard.
DETAIL / 04
Fast turnaround
Enquiry to confirmed hire, without the back-and-forth.
DETAIL / 05
Brands you already spec
L-Acoustics, Robe, Chauvet, Allen & Heath and more.
