Description
The Ultimate Fusion of Studio Precision and Visceral Low-End.
The RBH Reference 61-SFM (often designated as the 61-SFM/R) represents the absolute pinnacle of compact modular tower design. By docking RBH’s acclaimed Reference 61 monitor directly on top of a matching side-firing subwoofer pedestal, this 3-way system delivers the expansive, high-resolution soundstage of a massive floorstanding speaker while occupying a vanishingly small footprint. Hand-assembled in the USA, it is engineered for the audiophile who demands uncompromising transient speed, holographic imaging, and deep, physical bass.
The Reference Difference: Elite Driver Technology
The “Reference” designation represents a complete upgrade to RBH’s most prestigious, high-performance transducer technologies:
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Proprietary Reference AMT Tweeter: In place of a traditional dome, a large Air Motion Transformer (AMT) ribbon super-tweeter handles the high frequencies. By squeezing air rather than pushing it, this ultra-lightweight diaphragm delivers lightning-fast transient response and an incredibly airy, detailed high-end extending all the way up to 40kHz with near-zero distortion.
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Reference Mid-Woofer with Solid Phase Plug: The upper monitor features a 6.5-inch reference aluminum cone mid-woofer equipped with a machined solid-metal phase plug instead of a standard dust cap. This critical upgrade eliminates cone-resonance coloration, improves heat dissipation during high-output sessions, and dramatically enhances off-axis midrange dispersion for a wider, more forgiving listening sweet spot.
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Dual 8-Inch Side-Firing Subwoofers: Tucked into the bottom cabinet module are dual 8-inch reference aluminum cone subwoofers firing in a side-mounted, vibration-canceling configuration. By isolating the heavy low-frequency duties to their own dedicated HDF chamber, this module plunges the tower’s frequency response down to an authoritative 30Hz with exceptional grip and timing.
Key Product Highlights
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Intelligent Two-Cabinet Isolation: By physically separating the upper mid-high monitor from the lower bass module, backwave air pressure from the subwoofers never interferes with the delicate midrange drivers. You get cleaner vocals and absolute acoustic purity.
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Heavyweight, Inert Cabinetry: Constructed from heavily braced ¾-inch High-Density Fiberboard (HDF) rather than standard MDF, the cabinet remains entirely dead. Weighing 62 lbs, its robust build ensures that acoustic energy is projected cleanly into your room rather than being lost to cabinet resonance.
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Flexible Setup Configurations: The 61-SFM can run seamlessly as a cohesive full-range tower using its high-grade internal passive crossovers, or it can be bi-amped/bi-wired with external DSP processing for the ultimate level of customized room tuning.
