Thunder-KSC18P
The Thunder-KSC18P is a passive subwoofer from K-Array, housing a single high-excursion 18-inch neodymium magnet woofer with a 4.5-inch voice coil in an acoustically optimised bass-reflex wooden enclosure. It extends low-frequency reproduction down to 15 Hz at a peak SPL of 134 dB, designed for cinema and theatre environments demanding deep impact and powerful bass in a compact form factor.
Specifications
- Type: Passive subwoofer (bass-reflex enclosure)
- Transducer: 18-inch high-excursion neodymium magnet woofer, 4.5-inch voice coil
- Frequency response: 15 Hz to 150 Hz (-6 dB, with dedicated preset)
- Max SPL: 134 dB peak (crest factor 2, measured at 1 m)
- Rated power: 3,600 W
- Nominal impedance: 4 ohm
- Coverage: Omni-directional
- Dimensions (W x H x D): 1,100 x 700 x 380 mm
- Weight: 53 kg
- Enclosure material: Wood
- Colour: Black
- IP rating: IP40
Applications
The Thunder-KSC18P is designed for cinema auditoriums, professional theatres, and home entertainment installations where deep low-frequency reinforcement and high SPL sound effects are priorities. Its compact depth relative to its driver size allows placement behind projection screens or within architectural cavities. It pairs with K-Array mid-high loudspeakers and Kommander series amplifiers for full-range performance.
Frequently asked questions
How does the KSC18P differ from the KSC12P?
The KSC18P uses an 18-inch driver versus the KSC12P's 12-inch driver, with frequency extension reaching 15 Hz compared to 24 Hz, a higher rated power of 3,600 W versus 1,200 W, and a higher peak SPL of 134 dB versus 126 dB, making it suited to larger cinema and theatre spaces with greater bass output demands.
Does it require a dedicated amplifier preset?
Yes. As a passive loudspeaker it requires a dedicated preset loaded on a K-Array amplifier to operate correctly within its specified frequency range and crossover settings.
What voice coil size does it use?
The driver uses a 4.5-inch voice coil, contributing to its 3,600 W power handling capacity and high-excursion bass performance.
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.