Focal Sub One Active Studio Subwoofer

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Key Info

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.

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.

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.


  • 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 seperately)

Technical Specifications

  • Transducer
  • Drivers:
  • 2 x 8" (20cm) long-excursion
  • Cones:
  • Focal Slatefiber
  • Performance
  • Frequency Response:
  • 32Hz – 120Hz (+/- 3dB)
  • Maximum SPL:
  • 114dB (peak @ 1m)
  • Connectors
  • Inputs:
  • XLR-F (Electronically balanced / 110kOhms)
  • Outputs:
  • XLR-M (to satellites)
  • Power
  • Amplification:
  • 2 x 100W RMS, D-class
  • Supply:
  • Universal power Detachable IEC inlet power cord
  • 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
Model Name:
Sub One

UK Delivery

FREE Standard Delivery on orders over £99.00.

Orders placed before 4pm will normally be dispatched the same day.

Please refer to our delivery schedule for exceptions.

Delivery Upgrade Options (Over £99)

  • DPD Express Next Working Day - £4.99
  • Next Working Day Pre 12pm - £8.99
  • Saturday / Sunday - £9.99

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If, for whatever reason, you are dissatisfied with your purchase, you can return it to Music Matter within 30 days of receiving the item, providing it arrives back in new condition.

You have the option of receiving a full refund / exchange within 14 days, or, exchange / credit only within 30 days.

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Minimum 12 Months Warranty

All new & used goods supplied by Music Matter are warranted free from defects for 12 months from the date of supply (unless otherwise stated).

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