Rumble-KU315
The Rumble-KU315 is the highest-output passive subwoofer in K-Array's Rumble series. It combines one 15-inch neodymium woofer with two 15-inch passive radiators in a slim polyurea-coated birch plywood enclosure rated to 2000 W, delivering deep bass down to 35 Hz for large-venue and outdoor fixed installations.
Specifications
- Type: Passive subwoofer
- Transducers: 1 x 15-inch neodymium woofer, 2 x 15-inch passive radiators
- Frequency response: 35 Hz to 150 Hz (-6 dB, with dedicated preset)
- Maximum SPL: 138 dB peak (crest factor 12 dB, measured at 1 m)
- Rated power: 2000 W
- Nominal impedance: 4 ohm
- Connector: 1 x SpeakON NL4 (1+ / 1-)
- Coverage: Omnidirectional
- Dimensions (W x H x D): 1230 x 450 x 250 mm (48.4 x 17.7 x 9.8 in), excluding rubber feet
- Weight: 40 kg (88.2 lb)
- Enclosure material: Polyurea-coated birch plywood
- IP rating: IP64 (enhanced protection to IP65 available with K-IP65KITB accessory)
- Finishes: Black, white, custom RAL
Applications
Suited to medium and large-scale permanent installations where high output and a low profile are both required. Typical venues include nightclubs, bars, theatres, cinemas, auditoriums, and outdoor live-event sites. The sealed enclosure with passive radiators (no reflex port) resists weather and debris, making it viable for exposed outdoor environments. Compatible with K-Array Kommander amplifiers, which carry dedicated presets for balanced system tuning.
Standards and compliance
IP64 rating: protected against dust ingress and water splashing from any direction. Optional K-IP65KITB accessory raises protection to IP65.
Frequently asked questions
What is the KU315 maximum SPL output?
138 dB peak, measured at 1 m using a signal with a crest factor of 12 dB.
Does the KU315 use a bass-reflex port?
No. The sealed enclosure uses two additional 15-inch passive radiators in place of a reflex port. This increases linear excursion and reduces residual noise while maintaining weather resistance.
Can the KU315 operate outdoors?
Yes. The IP64-rated polyurea-coated enclosure and sealed design make it suitable for outdoor installations. The optional K-IP65KITB accessory provides enhanced water protection for more exposed environments.
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.