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The Cambridge Audio Minx X301 is a compact subwoofer measuring 31 cm per side, with a power output of 300 watts. It is designed to deliver deep bass in a small format, suitable for home environments. It features ABR (Auxiliary Bass Radiator) technology and a digital signal processor, allowing for precise control of the sound output. This model is intended for home use by users seeking a discreet yet high-performance subwoofer.
The Minx X301 sports a sleek cubic design measuring 311 × 266 × 278 mm and weighing 7.5 kg. Its high-gloss lacquered enclosure, available in black or white, uses an automotive-grade finish that resists scratches and impacts. This attention to aesthetic detail allows the subwoofer to blend seamlessly into any environment, whether discreetly placed in a corner or displayed as a decorative element.
The technical core of the X301 is based on a 20 cm main driver made from a single piece of aerospace-grade aluminum. This material, chosen for its lightness and rigidity, enables optimal air movement with minimal distortion. The driver faces forward, while a passive radiator of the same diameter, oriented downward, completes the system to enhance low-frequency response.
The built-in amplifier delivers 300 watts RMS and covers a frequency range from 31 Hz to 200 Hz. The variable active crossover allows you to adjust the cutoff frequency between 50 and 200 Hz, offering remarkable flexibility to suit different types of main speakers and room acoustics.
ABR (Auxiliary Bass Radiator) technology is the X301’s major innovation. Unlike traditional bass-reflex systems that require a port and larger volume, or sealed subwoofers that demand more power, the ABR system uses a passive radiator to optimize frequency response in a compact enclosure. This approach delivers deeper, more controlled bass while minimizing unwanted air noise.
The digital signal processor (DSP) developed specifically for this model manages real-time equalization and dynamic compression. This intelligent system constantly monitors the input signal and automatically adjusts parameters to prevent speaker overload and minimize distortion, even at high volumes. This technology enables the X301 to handle significant power surges without compromising sound quality.
The rear panel of the X301 offers full control over three essential parameters. The gain control allows you to adjust the subwoofer’s level relative to the other speakers in the system. The phase control, variable from 0 to 180°, helps optimize acoustic integration depending on the subwoofer’s position in the room. Finally, the variable active crossover from 50 to 200 Hz lets you precisely set the cutoff frequency.
Connectivity is limited to stereo RCA inputs and outputs, with the option to use the left input for LFE (Low Frequency Effects) signals. This simple yet effective setup is perfectly suited for stereo hi-fi systems and classic home theater installations. The intelligent auto-on/off mode automatically activates the subwoofer when a signal is detected, then puts it into standby after a period of inactivity, helping to save energy.
The X301 naturally integrates with Cambridge Audio Minx systems, but its versatility allows it to pair with most satellite speakers on the market. Its frequency response and fine-tuning options make it easy to adapt to different types of main speakers, whether compact bookshelf models or larger floorstanding speakers.
In a 2.1 stereo setup, the X301 adds the depth and warmth often missing from small speakers. In a 5.1 or larger home theater system, it efficiently handles LFE effects while maintaining sonic coherence with the other channels. Its compact size allows for creative installations: under furniture, behind the sofa, or even inside a cabinet with adequate ventilation.
The X301 excels in small to medium-sized rooms (up to 25–30 m²). Its ability to reach down to 31 Hz (-6 dB) allows it to reproduce most musical and cinematic content with authority. The bass is described as tight and controlled, avoiding the “boomy” effect sometimes associated with compact subwoofers.
For music, the X301 reveals the low harmonics of acoustic instruments and adds body to electronic recordings. In home theater, it reproduces low-frequency effects with precision, from thunder rumbles and explosions to car engines. Its fast response and low distortion maintain clarity even during the most intense passages.
The X301’s construction reflects Cambridge Audio’s characteristic attention to detail. The rigid enclosure minimizes unwanted resonances, while the high-gloss lacquer finish resists everyday marks and scratches. The aerospace-grade aluminum cones ensure exceptional longevity, and the built-in amplifier features thermal protection to prevent damage in case of overload.
The three-year warranty demonstrates the manufacturer’s confidence in the product’s reliability. The electronic components are rated for continuous operation, and the automatic standby mode helps preserve circuit lifespan.
The X301 is optimized for small to medium-sized rooms, typically up to 25–30 m². In larger spaces, its performance may seem limited, and using two units or choosing a more powerful model may be necessary. Its design prioritizes bass quality over sheer quantity.
Thanks to its compact size and the omnidirectional nature of low frequencies, the X301 offers great placement flexibility. Corner positions generally reinforce the bass, while a central placement can provide a more balanced response. Comparative listening remains the best way to determine the optimal position based on your room’s acoustics.
Absolutely. While designed to integrate seamlessly with Minx speakers, the X301 works with most satellite speakers on the market. Its gain, phase, and crossover controls allow fine-tuning for different types of main speakers, whether compact or larger models.
Yes, the X301 adapts to both configurations. In stereo, it uses the left and right inputs to create a coherent monophonic signal. In home theater, the left input can receive the LFE signal directly from the amplifier, while the outputs allow you to continue the chain to other equipment.
The intelligent auto-on/off mode optimizes energy consumption by activating the subwoofer only when an audio signal is present. In standby, power consumption is minimal, and the integrated DSP optimizes amplifier efficiency to reduce heat production and overall electricity use.
Yes, the RCA outputs allow you to daisy-chain multiple subwoofers to increase power or cover larger spaces. However, this setup requires careful placement to avoid acoustic interference, and an amplifier capable of handling the additional load.
Stephane
Very good subwoofer: works perfectly with a pair of Minx 22 speakers and a Minx Xi amp.
The size is ideal. Plus it looks great!
Comment from February 04, 2022 — Experience from January 24, 2022
Jean
Quality more than adequate for a moderate price.
Discreet and elegant.
Perfect for a 15 m2 living room.
Comment from August 14, 2021 — Experience from July 20, 2021
Bernard
Powerful subwoofer.
What comes out of this subwoofer is exceptional.
Aligns perfectly with Triangle Quartet speakers.
Why didn't I get it sooner?
I'm making up for lost pleasure.
Comment from August 27, 2020 — Experience from July 09, 2020
