Rumble-KU212
Rumble-KU212 is a passive subwoofer from K-Array, built from stainless steel with a slim 200 mm depth profile. A 12-inch neodymium woofer paired with a 12-inch passive radiator produces a fully sealed enclosure, delivering bass from 35 Hz for medium and large-format installations including bars, lounges, home cinemas, and small clubs.
Specifications
- Type: Passive subwoofer
- Transducers: 12-inch neodymium magnet woofer with double voice coil; 12-inch passive radiator
- Frequency response: 35 Hz to 150 Hz (-6 dB) with dedicated preset
- Max SPL: 130 dB peak
- Rated power: 700 W
- Coverage: Omnidirectional
- Nominal impedance: 4 ohms / 16 ohms selectable
- Connectors: 4-pin Euroblock (included)
- Dimensions (W x H x D): 655 x 330 x 200 mm (25.8 x 13.0 x 7.9 in), excluding rubber feet
- Weight: 18.5 kg (40.8 lb)
- Material: Stainless steel
- Colours: Black, white, custom RAL; premium finishes: 24K gold, polished, brushed
- IP rating: IP64; enhanced protection with K-KUIP12 accessory
Applications
The Rumble-KU212 pairs with K-Array mid-high speakers in hospitality venues, bars, lounges, home cinemas, small clubs, and outdoor terraces where extended low-frequency output is needed in a compact, low-profile form. At 16 ohms, up to four units can share a single 4-ohm amplifier channel. Dedicated presets for Kommander amplifiers provide optimised system balance. A marine-treated version is available for saltwater environments. Available models: KU212 (black), KU212W (white), KU212X (custom colour/finish), and marine variants KU212M, KU212MW, KU212MX.
Frequently asked questions
What is the difference between the Rumble-KU210 and the Rumble-KU212?
The KU212 uses 12-inch drivers instead of 10-inch drivers, extends low-frequency response to 35 Hz versus 40 Hz, delivers 130 dB peak SPL versus 127 dB, and handles 700 W versus 320 W. It is physically larger and heavier, suiting medium to large-format venues.
Does the sealed enclosure affect outdoor suitability?
Yes, positively. The fully sealed stainless steel cabinet prevents dust, sand, and water from reaching internal components. The standard IP64 rating is suitable for most outdoor installations; the optional K-KUIP12 accessory provides additional water protection.
Can the KU212 be used with non-K-Array amplifiers?
The KU212 can be driven by any compatible amplifier, but K-Array Kommander amplifiers with loaded presets provide the optimised crossover settings and EQ required for correct system alignment with K-Array mid-high speakers.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
What is your return policy?
All refunds and returns are determined by the manufacturer's terms of sale. Change-of-mind refunds are not accepted, but all valid warranty claims will be managed by AKA Acoustics in compliance with consumer law.
How long will it take to receive my order?
Freight lead times will be provided upon order confirmation. Standard items typically ship within 4–6 weeks, while custom orders may take 6–12 weeks.
Is my payment information secure?
Yes, all payments are securely processed through Stripe and are protected under their Terms of Service. AKA Acoustics do not store any payment information ourselves.
How are freight costs calculated?
Freight costs are determined at the time of quotation to ensure accurate pricing based on your specific order. For any questions, please email sales@akaacoustics.com
How can I contact support?
For account inquiries, email accounts@akaacoustics.com. For order support, email sales@akaacoustics.com.