Description
Table of Contents
- Introduction to the Krix MXi-118 Through-Wall Subwoofer
- Innovative Through-Wall Design Explained
- The Engineering of the 18-Inch Driver
- Acoustic Performance and Output Levels
- Technical Specifications and Dimensions
- Installation and System Integration
- Krix MXi-118 Frequently Asked Questions
Introduction to the Krix MXi-118 Through-Wall Subwoofer
The Krix MXi-118 represents a paradigm shift in how high-end subwoofers are integrated into modern homes. Part of the renowned Krix Series MX family, the MXi-118 is engineered specifically for “through-wall” applications. This means the bulky cabinet is hidden in a room behind the theater (such as a garage or utility space), while only the high-output port and driver face enter the cinema room itself.
This unique configuration allows the Krix MXi-118 to move massive volumes of air without occupying valuable real estate inside your theater. It provides the same earth-shattering impact as Krix’s commercial cinema modules but in a format tailored for architectural perfection.
Innovative Through-Wall Design Explained
Most high-performance subwoofers are difficult to hide because of their physical volume. The Krix MXi-118 solves this by utilizing the wall as a boundary. The enclosure is built to be mounted into a wall cavity or through a bulkhead.
Stealth Cinema Integration
By using the Krix MXi-118, designers can achieve a completely “clean” aesthetic. There are no boxes on the floor and no visible cables. The speaker is finished with a baffle that can be covered by acoustically transparent fabric or custom cabinetry, making the source of the bass a total mystery to the audience.
Vibration Isolation
Krix has engineered the Krix MXi-118 with structural integrity in mind. The cabinet is constructed from 18mm and 25mm MDF with extensive internal bracing to ensure that energy is directed into the room, not into the wall structure, minimizing unwanted rattles and house-wide vibrations.
The Engineering of the 18-Inch Driver
At the heart of the Krix MXi-118 lies a professional-grade 455mm (18-inch) driver. This isn’t just a large woofer; it is a high-sensitivity transducer designed for the most demanding cinema environments.
High Power Handling
The driver features a 100mm (4-inch) edge-wound copper voice coil on a high-power glass fiber former. This allows the Krix MXi-118 to handle sustained peaks of up to 1000 Watts RMS. This thermal stability ensures that during a 3-hour action movie marathon, the bass remains as crisp and impactful in the final scene as it was in the first.
Advanced Port Geometry
To support such a massive driver, the Krix MXi-118 uses a large, symmetrical vent system. This minimizes air turbulence and “chuffing,” ensuring that the subterranean frequencies remain pure and distortion-free.
Acoustic Performance and Output Levels
The Krix MXi-118 is built for those who want to feel the soundtrack. In a typical residential room, a single unit can reach a maximum SPL (Sound Pressure Level) of 124dB.
- Subterranean Extension: It reaches down into the infrasonic range, allowing you to feel the weight of deep atmospheric scores.
- Tactile Impact: The sheer surface area of the 18-inch driver provides a physical “slam” that smaller subwoofers cannot replicate.
- Reference Accuracy: Despite its power, the Krix MXi-118 remains articulate, making it equally capable of handling high-fidelity music.
Technical Specifications and Dimensions
The Krix MXi-118 is a substantial piece of equipment designed for professional integration.
| Parameter | Specification |
|---|---|
| Frequency Range | 10Hz – 200Hz (with DSP) 15Hz (-3dB), 13Hz (-6dB) (with DSP) |
| Power Handling | 1500 – 3000 Watts RMS (recommended amplifier power) |
| Recommended Processing | Approved amplifier with DSP required Consult with a Krix Certified System Designer |
| Low Frequency Driver | Single 460mm (18”) treated paper cone driver with 100mm (4”) voice coil, neodymium magnet, and demodulating ring for low distortion 50mm peak-to-peak displacement |
| Sensitivity | 100 dB (80Hz – 2.83V @ 1m, half space) |
| Impedance | 4 Ohms |
| Dimensions | 1220mm (H) × 750mm (W) × 335mm (D) |
| Weight | 55kg (each) |
Installation and System Integration
The Krix MXi-118 is a passive subwoofer and requires an external power amplifier with DSP capabilities.
- Amplification: We recommend a professional-grade amplifier capable of delivering 1000W+ into 8 Ohms to maximize the headroom of the Krix MXi-118.
- DSP Tuning: Because the subwoofer is mounted through a wall, using DSP for room correction is essential to smooth out low-frequency peaks and nulls.
- LCR Complement: For the ultimate “Wall of Sound,” pair the Krix MXi-118 with Krix MX-30 or MX-40 main modules.
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