K-Array Thunder KS1PW I – White Passive 12-Inch Subwoofer

Product Overview

The K-Array Thunder KS1PW I is a white passive 12-inch subwoofer designed for commercial AV installations where the loudspeaker system must blend into light-colored architecture. This 8-ohm installation subwoofer delivers 134 dB maximum SPL with extension down to 35 Hz, providing low-frequency reinforcement for white column array systems in houses of worship, conference rooms, and multi-purpose rooms. At 18 kg it is among the lightest 12-inch passive subwoofers available for commercial deployment, easing installation against walls, under platforms, or in concealed positions. This is the white finish; a black KS1P I version is also available.

Product Description

The KS1PW I houses a long-excursion 12-inch neodymium magnet woofer with a 3-inch voice coil, producing response from 35 Hz to a crossover-dependent 150/450 Hz upper limit — the wide upper range gives integrators flexibility when crossing over to compact white column elements or satellite speakers. Its 500 x 350 x 440 mm birch plywood enclosure wears a white polyurea coating that resists impacts and scuffs while disappearing against light interiors, and Custom RAL finishes are available when an exact architectural color match is required. Two SpeakON NL4 connectors accept 2-wire or 4-wire signal from external amplifiers and pass it through to additional loudspeakers for clean daisy-chained wiring. As a passive design rated for 1200 W peak, the KS1PW I keeps amplification and DSP centralized at the rack, where K-Array Kommander amplifiers apply the dedicated low-pass presets the cabinet requires. It is the factory-matched subwoofer inside the white Pinnacle KR102W II column array system, and additional companion elements are available in the K-Array collection.

Key Features

• Architectural White Finish — The white polyurea coating lets the subwoofer recede into light-colored walls, ceilings, and stage fronts in design-sensitive commercial spaces.
• 12-Inch Neodymium Woofer — A long-excursion 12" driver with 3" voice coil reaches down to 35 Hz for genuine low-frequency support in small and mid-size venues.
• 134 dB Maximum SPL — Strong single-cabinet output covers speech reinforcement, presentations, and music playback without strain.
• Ultra-Light 18 kg Cabinet — Neodymium magnetics keep the subwoofer at 39.7 lb, allowing one-person positioning and reducing load in suspended or concealed mounting.
• 8-Ohm Impedance for Flexible Loading — Two cabinets can run in parallel on one 4-ohm amplifier channel, saving rack space in dual-subwoofer designs.
• 1200 W Peak Power Handling — The passive design accepts professional installation amplification while keeping all electronics serviceable at the rack.
• Wide Crossover Range — External DSP low-pass settings from 150 Hz up to 450 Hz give designers latitude when pairing with compact column and satellite elements.
• Dual SpeakON NL4 Connectivity — Two NL4 connectors accept 2-wire or 4-wire input and route signal through to other loudspeakers for tidy daisy-chained wiring.

Typical Applications

• Houses of worship with light interiors adding bass beneath white column arrays
• Conference rooms and boardrooms where audio hardware must stay visually discreet
• Multi-purpose rooms alternating between speech and full-range program
• All-hands rooms and commercial meeting spaces with video and music playback
• Auditoriums and training rooms needing compact, concealable low-frequency support
• Government spaces requiring unobtrusive installed audio

Technical Specifications

Frequently Asked Questions

What is the difference between the KS1PW I and the KS1P I?

Finish only. The KS1PW I is the white version of the black KS1P I; acoustic performance, dimensions, connectors, and power handling are identical, so the two can be specified interchangeably based on room aesthetics.

Which amplifier should drive the KS1PW I?

It is passive and requires external amplification rated for an 8-ohm load with up to 1200 W peak handling. K-Array Kommander amplifiers are the recommended match because their dedicated DSP presets manage the low-pass crossover.

Can I run two KS1PW I cabinets on one amplifier channel?

Yes. The 8-ohm nominal impedance allows two cabinets in parallel to present a 4-ohm load, which most professional installation amplifiers drive comfortably.

Which K-Array systems pair with the KS1PW I?

It is the matched subwoofer in the white Pinnacle KR102W II column system and pairs with white K-Array column elements crossed over via Kommander DSP presets. See the K-Array collection for companion products.

Can it be color-matched to a specific interior?

Yes. Beyond standard white and black, K-Array offers Custom RAL finishes so the cabinet can match brand colors or architectural palettes in design-led installations.

What warranty applies?

K-Array products carry a 5-year manufacturer warranty, supported by Creation Networks as an authorized dealer with system design assistance before and after the sale.