Focal Sub One Active Studio Subwoofer


Available to pre-order

Main Features

  • 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)
SKU: FO-SUBONE Categories: , Tags: , , , GTIN: 3544053711430
Brands: Focal


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

Slatefibre neutrality

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. 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.

Focal Sub One – Easy integration

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.

Focal Sub One Technical Specifications:

Drivers: 2 x 8″ (20cm) long-excursion
Cones: Focal Slatefiber
Frequency Response: 32Hz – 120Hz (+/- 3dB)
Maximum SPL: 114dB (peak @ 1m)
Inputs: XLR-F (Electronically balanced / 110kOhms)
Outputs: XLR-M (to satellites)
Amplification: 2 x 100W RMS, D-class
Supply: Universal power Detachable IEC inlet power cord
Focal Sub One Physical Properties
Construction: 7/8″ (22mm) MDF panel with internal braces
Finish: Dark grey vinyl
Dimensions: 435.5 x 366 x 440mm (HxWxD)
Weight: 18.5kg
Check out the full Focal Alpha EVO Range here