Focal's Sub One subwoofer - angled
Focal's Sub One subwoofer - straight
Focal Sub One Active Studio Subwoofer

Featuring impressive dynamics and extremely low distortion, Focal’s Sub One active studio monitoring subwoofer can reveal a wealth of low-end detail for any mix.

£749.00 inc VAT
EAN 3544053711430

  • Left + right mono summation
  • 60Hz / 90Hz high-pass crossover
  • Adjustable low-pass crossover, 24dB/octave
  • Phase adjustment
  • Polarity switch
  • Subwoofer level adjustment (sensitivity)
  • Low-pass crossover cut-off frequency adjustment
  • Polarity inverter
  • Pedal-controlled mute (sold separately)
MusicTech - Choice Award

"Cheaper than many of its quality competitors and for the bass conscious it is an assured choice for the price"

Tape Op Magazine

"With the Focal Sub One upgrade to my playback system, I’m now confidently reaching for better sounds"


Inheriting the evolved design traits of Focal’s Alpha EVO series, Sub One features two 8-inch Slatefiber cone woofers developed in-house by Focal France to offer neutrality as well as detail. Each driver serves a wide frequency response from 120 all the way down to 32Hz.

Power in numbers
Sub One delivers 200W of total RMS power along with a high level of control

Sub One delivers 200W of total RMS power along with a high level of control. Low-pass crossover, polarity, phase and of course volume can all be fully adjusted to user requirements.

For dealing the subwoofer in and out quickly, an external footswitch output is also available to cut the Sub One in and out with the tap of a button.

Easy integration
Sub One's rear panel offering a range of I/O satelite options

The rear panel of the Sub One is armed with balanced 3-pin XLR inputs and outputs, along with a dedicated LFE “Low Frequency Effect” input and output management system for optimum satellite configuration.

Thanks to its neutral shape and build, Sub One easily integrates into almost any workspace and can be placed directly against a wall or under a desk without impacting on performance.

Sub One from Focal in situ at a commercial studio

Drivers 2 x 8" (20cm) long-excursion
Cones Focal Slatefiber
Frequency Response 32Hz – 120Hz (+/- 3dB)
Maximum SPL 114dB (peak @ 1m)
Inputs/Outputs XLR-M / XLR-F (Electronically balanced / 110kOhms)
Amplification 2x 100W RMS, D-class
Dimensions 435.5 x 366 x 440mm (HxWxD), 18.5kg