The Minx X201 is a compact powered subwoofer made by Cambridge Audio, the London company, as part of its Minx line. It pairs one active driver with passive radiators inside a high-gloss enclosure whose colour options are black and white. The X201 is meant to supply the low end beneath a pair of main speakers.
Key specs that matter
A built-in amplifier rated at 200 W drives one 6.5 inch subwoofer driver, and two 6.5 inch passive radiators share the enclosure with it. The stated frequency range runs from 36 Hz to 200 Hz, with the lower figure stated at the -6 dB point. The active crossover can be varied from 50 Hz to 200 Hz. The cabinet measures 210 x 219 x 222 mm and weighs 5.0 kg, and the unit runs on mains supplies from 110 V to 240 V at 50 or 60 Hz.
Engineering and use context
According to Cambridge Audio, the powered driver works alongside the auxiliary bass radiators to extend bass output while the enclosure stays small. Processing is handled by what the brand calls intelligent DSP. The rear panel carries controls for volume, phase and crossover frequency, alongside a mains power switch and a standby selector. The standby selector offers two positions - Force On, which keeps the subwoofer running with no standby, and Audio Detect, where the X201 switches itself on when an incoming signal appears and powers down again when the signal stops. In the box, the subwoofer is joined by installation and safety guides plus a mains lead suited to the local supply.
Pairing
Connection is at line level. With a two-channel hi-fi amplifier or preamplifier, a stereo feed goes into the left and right line inputs, and the crossover control then sets the frequency at which the X201 begins to work alongside the main loudspeakers. With an AV receiver or amplifier that has a dedicated sub output, a single cable goes to the left input, which doubles as the LFE/Sub socket. Line out sockets on the rear pass the signal on to the line input of a second subwoofer, which allows a pair of subwoofers to share one source. In both cases the partner component has to provide a line-level output, such as a preamplifier out or a subwoofer out, since the connections Cambridge Audio documents for the X201 are all line-level sockets.
Alternatives
The Cambridge Audio Minx X301 is the larger subwoofer of the range, with a 300 W amplifier, an 8 inch driver with one 8 inch passive radiator, a quoted 31 Hz lower limit and a 7.5 kg cabinet.