PMC Twenty5 26i Floorstanding Speakers

Key Features

• Advanced Transmission Line Design for Deep, Rich Bass
• Laminair® Aerodynamic Vents for increased efficiency
• Handmade military-grade crossover circuit board
• Incredibly solid & inert cabinet design
• Sustainably sourced, Hand-matched, real-wood veneers
• Specially tailored, Ultra-low-distortion drivers
• 30 - 200w Recommended amp power
• Unrivalled 20-Year Warranty (register here)

The flagship 26i is the largest speaker in the Twenty5 range, featuring a third mid-range driver to enhance critical details in vocals and many instruments. This three-way design is essential to ensure that every important frequency range has its own dedicated driver, tuned precisely to fill even the largest of listening rooms with absolute clarity, transparency & musicality.

The 26i features PMC's infamous ATL (Advanced Transmission Line) design, allowing the speaker to produce deep, hard-hitting bass which you can not only hear but feel. This bass driver is perfectly balanced with the 26i's custom 50mm soft-dome midrange driver and 19mm ferrofluid-cooled soft-dome tweeter to create stunning open highs, clear, detailed mids and deep, tight bass.

ATL Technology

The source of PMC’s legendary natural, realistic sound is the Advanced Transmission Line (ATL) bass-loading technology, professionally proven all around the world.

ATL uses energy generated by the bass unit in a much more intelligent, efficient way than speaker designs based on ported or sealed boxes. In ATL loudspeakers, the highly braced cabinet is lined with a multitude of custom-designed acoustic materials that absorb all but the very lowest frequencies. These exit from a front-panel vent, extending the low-frequency response, and creating the impression of a far larger speaker with an extra, ultra-high-quality bass unit.

ATL improves more than just the bass response: because the low end is clean and clear, it doesn’t mask the rest of the music. Vocals, in particular, are beautifully projected and ultra-vivid. ATL loudspeakers offer another benefit. The ATL bass extension does not change with volume level — so even when listening quietly, the bass sounds balanced and well-defined.

Laminair

PMC’s Laminair™ aerodynamic vent takes audio performance to the next level, by applying ATL aerodynamic principles from high-performance engineering used from F1 to Le Mans and creating an even smoother, laminar airflow at the exit from the transmission line.

ATL designs involve air moving at high speeds and under pressure. Reducing turbulence and drag at the ATL vent reduces resistance, increases efficiency, eliminates air noise and provides bass with supreme timing and the widest possible dynamic range. The combination of ATL and Laminair takes audio quality to unparalleled new heights:

ATL loudspeakers offer another benefit. The ATL bass extension does not change with volume level — so even when listening quietly, the bass sounds balanced and well-defined.

Drive Units

Many speaker manufacturers start with a driver — someone else's driver, an OEM design — and go from there. That approach is not an option at PMC. Our Advanced Transmission Line™ designs require a driver specifically tailored to its parent cabinet to produce the high-resolution, ultra-low-distortion performance our customers expect of us. As a result, our drivers yield a natural, pure, uncoloured sound which you can trust as a true audio reference. Why would you want anything else?

Crossovers

When designing the fact crossover, the value of the capacitors was first calculated, and then the best-sounding example – chosen from many different manufacturers – was selected.

Upon delivery, each capacitor is tested to ensure it matches the required specifications and a record of the measurement results are kept. Pairs of capacitors with identical specifications are used in each pair of loudspeakers, ensuring that their characteristics are indistinguishable.

The capacitors are then soldered, bonded and anchored by hand onto the military-grade crossover circuit board, which is also individually inspected and tested. The crossover can then be considered for installation, but only after its performance characteristics are approved following both critical listening tests and exacting computerised measurements. But it’s not just capacitors and crossovers; every single component of PMC’s fact loudspeakers is subject to the same rigorous test procedures, ensuring that each loudspeaker is a precise replica of our reference.

This holistic approach, where all design elements are treated with the same significance, is a signature of the fact’s design excellence. This guarantees supreme power handling and ultra-low distortion, both of which play a major role in the exceptional clarity and wide, three-dimensional soundstage to be enjoyed across a wide listening area.

Who is PMC?

Founded in 1991 by Peter Thomas of the BBC and Adrian Loader of FWO Bauch. Combining knowledge and a life-long passion for music led to the production of PMC’s first product, the BB5-A, an active main studio monitor. This design was snapped up by the BBC Maida Vale and Metropolis Mastering and remained the world’s reference, used by Prince, Stevie Wonder’s Wonderland Studio, Hospital HDTV Broadcast London and renowned classical labels such as Decca and Harmonia Mundi. Many of today’s movie themes have been crafted using PMC, by such eminent composers as Henry Jackman, Thomas Newman, Tyler Bates and John Debney.