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Focal Sub One Active Dual 8" Subwoofer

BH #FOSUBONE • MFR #FOPRO-SUBONE
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Focal Sub One Active Dual 8" Subwoofer
Key Features
  • Dual 8" Slatefiber Cone Woofers
  • Large Front Vents for Stable Tone
  • 200W RMS Class-D Amplification
  • 32 to 120 Hz Frequency Response
Added to an existing monitoring setup, the Focal Sub One active subwoofer accurately fills in the crucial bass range in virtually any project studio, postproduction suite, or commercial recording facility. It is outfitted with two side-firing 8" Slatefiber cone woofers and dual front ports in a modestly sized cabinet that can easily fit under a desk or along a wall.
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Focal SUB ONE Overview

Added to an existing monitoring setup, the Focal Sub One active subwoofer accurately fills in the crucial bass range in virtually any project studio, postproduction suite, or commercial recording facility. It is outfitted with two side-firing 8" Slatefiber cone woofers and dual front ports in a modestly sized cabinet that can easily fit under a desk or along a wall.

Powered by 200W of Class-D amplification, Sub One can effectively reproduce low frequencies from 32 to 120 Hz with low distortion and important micro-details. Adjustable level, phase, and low- and high-pass crossover settings enable precise tuning to accommodate sonic variances resulting from the subwoofer's placement in the room as well as the frequency response of the main monitors. With left, right, and LFE I/O on XLR jacks and footswitchable mute functionality that can be linked to other subwoofers, Sub One is designed for professionals.

Dual-Woofer Design
  • Long-excursion, high-efficiency subwoofer with two 8" Slatefiber cones made in France
  • Large front vents ensure stable tonal balance and optimum integration
  • Two 100W RMS Class-D amplifiers
  • Reproduces sonic microdetails with great dynamics and low distortion
  • Integrates easily into a room, along a wall, or under a desk
Adjustable Settings
  • Subwoofer level control
  • Continuously variable phase from 0 to 180°
  • Switchable polarity
  • Defeatable high-pass crossover at 60 or 90 Hz
  • 24 dB/octave low-pass crossover tunable between 45 and 120 Hz
  • Selectable auto-standby mode
Versatile I/O
  • Electronically balanced left, right, and LFE inputs on XLR 3-pin jacks
  • Left, right, and LFE XLR outputs
  • 1/4" input and outputs for pedal-controlled mute (footswitch available separately) with linking between several subwoofers
UPC: 191561736023

Focal SUB ONE Specs

Key Specs
Monitor Type & Configuration
Active Subwoofer
Total Power Output
200 W RMS
Subwoofer Drivers
2x 8" / 20.3 cm Composite Cone
Audio I/O
3x XLR 3-Pin Balanced Input (110 Kilohms)
3x XLR 3-Pin Balanced Output
Digital Audio I/O
No
Network I/O
No
Wireless
No
Monitor Type & Configuration
Active Subwoofer
Number of Included Monitors
Single Monitor
Enclosure
Bass-Reflex/Ported
Total Power Output
200 W RMS
Drivers
Subwoofer
2x 8" / 20.3 cm Composite Cone
Amplifiers
Subwoofer: 2 x 100 W RMS Class-D
Performance
Frequency Response
32 Hz to 120 Hz ± 3 dB
Maximum Sound Pressure Level (SPL)
114 dB (Peak)
Analog Input Sensitivity/Gain
-24 to 0 dB (Continuously Variable)
Signal Processing
EQ
No
Filters
No
Parametric EQ
No
Crossover Frequency
High-Pass: 60 to 90 Hz (Defeatable)
Low-Pass: 45 to 120 Hz, 24 dB/Octave Slope
Phase Adjustment
0 / 180° Phase Inversion, 0 to 180° Continuous Phase Control
Connectivity
Audio I/O
3x XLR 3-Pin Balanced Input (110 Kilohms)
3x XLR 3-Pin Balanced Output
Digital Audio I/O
No
Network I/O
No
USB
No
Wireless
No
Power
AC Input Power
100 to 240 VAC, 50/60 Hz
Power Consumption
100 W
Physical
Color
Gray
Monitor Orientation
Vertical
Enclosure Material
MDF
Fan-Cooled
No
Mounting Points
No
Dimensions (W x H x D)
14.4 x 17.2 x 17.3" / 36.6 x 43.6 x 44 cm
Weight
40.8 lb / 18.5 kg
Packaging Info
Package Weight
50 lb
Box Dimensions (LxWxH)
24.75 x 23 x 16.5"

Focal SUB ONE Reviews

Exceptional Value!

By Simeon
Rated 5 out of 5
Date: 2025-12-28

In short, this is the subwoofer you need if you want a near-field setup. I have mine paired with the Audient id14 mkii audio interface, with the signal carrying to the subwoofer first, then pass-thru'd onwards to the Focal Alpha 65 Evo monitors. I have another setup (for gaming and movies) in my living -- The Dali Ikon 6 mkii -- but my near-field office setup with the Focals is more enjoyable for music listening and production/mixing.

Detailed sound

By Andrei
Rated 5 out of 5
Date: 2023-11-21

Very detailed sound, compared with genelec 7040a, jbl, Khali Audio, others just booming, but focal sub one gives very detailed bass, highly recommended

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