Barefoot Sound MasterStack12 - 4.5-way Active Modular Monitor System (Pair)

The Apex of Studio Monitoring Precision

The Barefoot Sound MasterStack12 represents the absolute peak of studio monitoring technology and Thomas Barefoot’s design philosophy. This flagship, high-output 4.5-way active modular tower system is meticulously engineered for world-class mixing, mastering, and tracking environments. Serving concurrently as a nearfield, midfield, and far-field reference, the MasterStack12 is the definitive choice for industry icons like Skrillex and Chris Lord-Alge. It delivers the immense headroom, flawless transparency, and uncoloured honesty required to make critical creative decisions with total confidence in large-format control rooms.

Absolute Cabinet Inertia via Patented Dual-Force™ Technology
Conventional monitors frequently suffer from cabinet colouration caused by the physical energy of driver movement. The MasterStack12 eliminates this at the source using Barefoot's patented Dual-Force™ technology. By mounting the quad 12-inch subwoofers in opposing pairs with physically coupled motor structures, reactive mechanical forces are cancelled out completely within the massive internal bracing. This creates an exceptionally inert, vibration-free enclosure. Low-frequency reproduction remains crystalline, tight, and articulate all the way down to 18Hz, completely free from the acoustic "smear" common in lesser designs—even at extreme playback volumes.

Four Reference Speakers in One: MEME™ Technology
Streamline your workflow and ensure flawless translation across all playback systems with integrated MEME™ (Multi-Emphasis Monitor Emulation) technology. Rather than relying on simple EQ curves, this advanced DSP platform implements comprehensive mathematical modelling to replicate the frequency, phase, transient response, and distortion characteristics of industry-standard second references. Using the included wired hardware remote, you can instantly cycle between the surgical transparency of the "Flat" response, the mid-forward character of the "Old School" (NS10M style), or the bandwidth-limited "Cube" mixcube. Engineers can check real-world mix translation instantly without ever leaving the sweet spot.

Massive Headroom & Seamless Polar Dispersion
Driven by an astonishing 3500 Watts of ultra-transparent Hypex Class D amplification per tower, this system provides the massive dynamic headroom required to handle the most complex transients with effortless ease. The innovative 4.5-way design leverages three 7-inch woofers working in concert for low-mid frequencies to maximise efficiency and minimise distortion. By progressively filtering these woofers via internal DSP, the MasterStack12 achieves consistent polar dispersion and a fluid acoustic transition from an earth-shaking low end to a wide, detailed high-frequency pattern that extends up to 50kHz via its proprietary ring radiator tweeter.

Main features:

• Ultimate Modular Configuration: Active 4.5-way tower system featuring 10 state-of-the-art drive units per stack, designed for demanding large-scale studios
• Unmatched Power: 3,500 Watts of continuous Hypex Class D amplification per tower for effortless headroom and surgical detail
• Dual-Force™ Low End: Quad 12-inch aluminium cone subwoofers with vibration-cancelling technology to eliminate cabinet colouration
• Wide Sweet Spot: Proprietary 1-inch ring radiator tweeter with a rear waveguide chamber providing detailed high-frequency performance up to 50kHz
• Sealed Acoustic Suspension: Precision fully sealed enclosures throughout for superior transient speed, time-domain accuracy, and phase alignment
• MEME™ Technology: Built-in Multi-Emphasis Monitor Emulation with a wired remote control for instant switching between four distinct voice profiles
• Advanced Baffle Design: Precision-machined aluminium baffle plate designed to prevent unwanted diffraction and energy storage

Package Includes

2x Barefoot Sound MasterStack12 Modular Active Tower Stack
1x Wired MEME Voice Selector Box
1x Set of 3.5mm MEME Cables
2x IEC Power Cables
16x Handles (optional)
1x Quick Start Manual

Tech Specs:

• Configuration: Active 4.5-Way Modular Tower 
• Total Power Output: 3500W continuous Hypex Class D amplification per tower
• Frequency Response: 18 Hz – 50 kHz (±3dB); 26 Hz – 40 kHz (±1dB)
• Bass Response: -3 dB @ 18Hz, Q = 0.707, Slope = 12 dB/octave
• Crossover Frequencies: 80 / 200 / 800 / 4000 Hz
• Tweeter: 1" (25.4 mm) Ring Radiator, rear waveguide chamber (250W Amp)
• Midrange: 2x 2.5" (63.5 mm) Aluminium Cone, ±2 mm linear excursion (250W Amp)
• Woofers: 3x 7" (165 mm) Aluminium Cone, ±13 mm linear excursion (500W Amp)
• Subwoofers: 4x 12" (305 mm) Aluminium Cone, ±25 mm linear excursion (2400W Amp)
• Analogue Inputs: 3x XLR 3-Pin Balanced Line Input (50 kOhms / 25k Ohm Input Impedance)
• Digital Inputs: 2x XLR 3-Pin AES3 Input
• Control I/O: 2x 3.5 mm TRS Control Input (Voice Selector)
• Max Power Consumption: 1800W
• Cabinet Volume: 180 Litres total internal volume (Sealed acoustic suspension)
• Dimensions (HxWxD): 1600 x 366 x 556 mm (160 x 36.6 x 55.6 cm)
• Net Weight: 127 kg per Tower (without handles)
• Shipping Weight: 147 kg per Tower (without handles)
• Discover Barefoot Sound Premium Monitoring Solutions: https://barefootsound.com/masterstack12/