L-Acoustics
L'Acoustics SUB KS21
High-power 21-inch passive subwoofer — quad-pack configuration for SYVA, K2, or Kara line array systems. Requires LA4X/LA12X amplifiers and an obligatory technician
Multi-day and weekly rates available. Delivery free within Split and Zagreb (up to 15 km); other locations on request.
* Prices exclude VAT (25%).
Ideal For
Large outdoor events, brand activations with sub-heavy programming, festival-format weddings, club-style production
Key Specs
Driver
21-inch neodymium
Max SPL
143 dB (per cabinet)
Bandwidth
30 Hz – 100 Hz
Requires
LA4X or LA12X amplifier(s) — quoted separately
Features
- 21-inch high-excursion driver
- Cardioid configuration available
- Touring-grade rigging hardware
- Pairs with SYVA, K2, Kara, A-Series
- Technician obligatory with rental
Technician setup recommended for this equipment
L’Acoustics SUB KS21 is the 21-inch high-output subwoofer used on the world’s largest tours. We rent it in quad-pack configuration (4 cabinets) for events where the low end needs to feel as good as it sounds — large outdoor weddings, brand activations, fashion shows, and club-format productions on the Croatian coast.
KS21 is a passive system: it requires L’Acoustics LA4X or LA12X amplification (quoted separately) and is always rented with an obligatory technician. The cardioid configuration available with 4 cabinets reduces stage spill, keeping the low end on the audience while protecting the talent’s monitoring environment.
What’s Included
- 4 × L’Acoustics SUB KS21 cabinets
- LA4X or LA12X amplifier(s) — configured to event size and array geometry
- Cabling (Speakon, mains)
- Sound technician for setup, soundcheck, event operation, teardown
- Optional rigging hardware for flown or cardioid configurations
Contact
Contact us with your event date, venue, expected guest count, and any specific SPL or stage-coverage requirements. We will design the right configuration (ground-stacked, flown, or cardioid) and quote accordingly.
Need permanent audio? We also design and install permanent AV systems for hotels, restaurants, and villas across Croatia.
Complete Your Production
Equipment is only part of the equation. Add professional crew for a seamless event.
Dedicated audio professional managing sound design, levels, and transitions throughout your event
Creates and operates custom lighting design for your venue and event flow
Professional event documentation and creative content capture
Complete technical production team — audio, lighting, and coordination for seamless event delivery
Services are added to your quote at checkout.
Split City
Same-day delivery included
Islands
Hvar, Brač, Vis, Korčula — day-before delivery
Flexible Periods
Daily, weekend, weekly rates. Multi-day discounts.
Tech Support
Setup assistance, on-call technicians, 24/7 event support
Also serving Dubrovnik, Zagreb, Makarska, and all of Croatia. Full delivery info
Need this for your event?
Get a custom quote for your rental needs. We deliver across Croatia including Adriatic islands.