Soundmatters has announced a new speaker designed to bring some low frequency oomph to its portable foxLv2 Bluetooth and non-Bluetooth brethren. The new foxLO, which Soundmatters calls "the world's first palm-sized hi-fi subwoofer," plugs directly into foxLv2 speaker's subwoofer output but will also work with other branded portable speakers, such as the Jawbone Jambox, thanks to the inclusion of a 3.5 mm full pass-through output.

The foxLO's "patented Linear Magnetic Drive woofer technology with a passive radiator system" pumps out 25 watts of bass and the minimalist industrial design features a knob to vary the bass volume and an LED to indicate power.

But while the foxL speaker line can be powered by mains or battery power, making them truly portable, the foxLO will only run on mains power. So while the unit won't take up much room in a suitcase or on a desk, it will keep you tied to an electrical outlet if you want to make the most of the phat beats - the kids still call them that, right? However, this does enable to unit to include a USB-A charging port to top up the batteries in more mobile devices, such as a connected foxL or Jambox speaker, or iPhone.

The foxLO measures 63 x 114 x 160 mm (2.5 x 4.5 x 6.3 in) and weighs 651 g (23 oz). Soundmatters will be debuting the unit at CES 2012 next week with a release set for the northern Spring when it will be priced at US$149.