FOCAL

Sub12 ST6

13" W-cone subwoofer, 600W RMS, 1000W peak, 28Hz–400Hz response, 125dB SPL, auto-standby, front laminar port, phase, polarity, LPF/HPF controls, XLR I/O.


$3,899.00 CAD
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Description

The Focal Sub12 ST6 is a professional-grade active subwoofer engineered for exceptional bass accuracy, depth, and impact in studio monitoring environments. Designed to complement Focal’s ST6 series monitors such as the Solo6, Twin6, and Trio6, the Sub12 ST6 features a powerful 13" “W”-cone woofer and delivers clean, distortion-free low-end reproduction down to 28 Hz, with maximum SPL reaching 125 dB.

Driven by a 600W RMS Class G amplifier (1000W peak), the Sub12 ST6 ensures high headroom and dynamic precision, making it ideal for critical mixing, mastering, and sound design. It also features internal signal processing with selectable low-pass and high-pass filters, phase and polarity controls, and a variable sub level, allowing you to tailor the subwoofer’s performance to your room and monitoring setup. The addition of a disengageable auto-standby mode, footswitch bypass control, and LFE input/output provides flexibility for both stereo and multi-channel configurations.

Built with reinforced cabinetry and laminar front porting to reduce distortion and port noise, the Sub12 ST6 combines robust construction, refined acoustic design, and user-friendly controls, making it a powerful, transparent, and versatile low-frequency extension for high-resolution studio environments.

Features

Powerful Low-End Performance
Delivers deep, tight bass with a 13" 'W'-cone woofer and 600W RMS / 1000W peak amplification.

Wide Frequency Range
Covers 28 Hz to 400 Hz with high accuracy, ideal for mixing full-range audio.

Clean and Controlled Bass
Front-facing laminar port and internal bracing minimize port noise and distortion.

Studio-Ready Connectivity
Balanced XLR inputs and outputs for Left, Right, and LFE channels with flexible routing options.

Advanced Signal Control
Features user-adjustable low-pass filter, high-pass filter, phase, polarity, and sensitivity.

Bypass and Footswitch Control
Includes 2.1 bypass function, controllable via footswitch, for quick A/B comparisons.

Automatic Standby Mode
Disengageable auto-sleep conserves energy when not in use.

Rugged, Functional Design
Reinforced cabinet with large side handles for easy transport and positioning.

Perfect Match for Focal Monitors
Optimized to pair with Solo6, Twin6, and Trio6 for precise low-end extension.

Specifications

General Specifications
Product Name: Sub12 ST6
Type: Professional Active Subwoofer
Woofer: 1 x 13" (33 cm) Composite ‘W’-cone
Port Type: Large laminar front port
Construction: Dark red natural veneering side panels, black body
Handles: Integrated carry handles
Shielding: None
Dimensions (H x W x D): 60 x 48.7 x 56.8 cm / 23.6 x 19.1 x 22.4 in
Weight: 58 kg / 127.8 lbs
Temperature Range (Use): 5–35°C
Temperature Range (Storage): 0–50°C

Acoustic Specifications
Frequency Response (-3 dB): 28 Hz – 400 Hz
Maximum SPL (Peak @ 1 m, CEA2010B 30–200 Hz): 124.5 dB

Electronic Specifications
Amplifier Power: 600 W RMS (Class G)
Peak Power: 1000 W
Inputs: Balanced XLR – LFE (10 kΩ), Left & Right (10 kΩ)
Outputs: Balanced XLR – LFE (parallel), Left & Right (50 Ω)
Satellite Outputs: Right and Left, electronically balanced, 3-pin male XLR
Nominal Power Supply: ~100–120 VAC / 220–240 VAC, 50/60 Hz
Fuses:
– ~100–120 V: T10AL / 250 V
– ~220–240 V: T5AL / 250 V

User Controls
Sub Level (Sensitivity)
Low-Pass Filter (LPF) Adjustment
High-Pass Filter (HPF) with Cutoff Frequency Selection
High-Pass Defeat
Phase Adjustment
Polarity Switch
Mute
2.1 Bypass (Controlled by External Footswitch)
Auto Stand-by Mode (Disengageable)

Internal Signal Processing – Subwoofer Section
Left/Right Mono Summation
LFE + Mono Low-Pass Filter (24 dB/octave)
Switchable High-Pass Crossover (24 dB/octave)
Phase and Polarity Controls

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