PMC twenty5.21 Stand Mount Speakers

$4,389.00

Stands sold separately

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SKU: twenty5.21 Category:

Description

Don’t let its compact size fool you; this loudspeaker is nothing less than remarkable. It’s complex ATL and Laminair vent means that you get speed, weight and transparency, with excellent bass extension for a loudspeaker of this size. Whether on a shelf or its performance-enhancing stand, the twenty5.21 excels with all types of music. Its articulate mid-range, clear, open highs and profound bass mean it can fill rooms both medium and small with astonishing ease.

Key Features

Advanced Transmission Line (ATL) bass-loading technology – ATL is an ingenious design and 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 aerodynamic vent – Head of Design Oliver Thomas applied aerodynamic principles he had discovered in his previous employment in Formula One to ATL, creating an even smoother, laminar airflow at the exit from the transmission line. ATL designs involve air moving at high speeds and under pressure, and Oliver showed that reducing turbulence and drag at the ATL vent reduces resistance, increases efficiency, eliminates air noise and provides bass with supreme timing and the ultimate dynamic range.

G-weave cone – The heightened level of performance produced by the twenty5 series puts huge demands on the construction of the bass and midbass drivers, so a far stiffer cone is necessary to produce maximum resolution and musical power, and minimum colouration. PMC has developed g-weave, a resin-bound, fine-weave glass fibre and pulp hybrid cone to achieve this goal. The g-weave cone is far stronger than paper and doesn’t impart any character, ensuring you hear more music and less loudspeaker. The trio of bespoke drivers is extremely powerful, with exceptional travel.

27mm Sonolex Tweeter – For the twenty5 series PMC continues to use tweeters co-engineered with Norwegian electro-acoustic craftsmen SEAS, one of the world’s finest purveyors of drive-unit technology. The precision 27mm soft-dome driver is made from Sonolex, a highly sophisticated material that ensures an exceedingly smooth natural response and guarantees perfect pair matching. The perforated polished grille is computer modelled for optimum dispersion and razor-sharp imaging and creates an intense three-dimensional image that covers a vast listening area.

Specifications

Drive Units: LF – PMC twenty5 series 5.5″/140mm long-throw g-weave cone with cast alloy chassis; HF – PMC/SEAS®, 27mm twenty5 series, SONOLEX fabric soft dome, Ferrofluid cooled
Frequency Response: 46Hz – 25kHz
Crossover Frequency: 1.8kHz
Effective ATL Length: 2m / 6.5ft
Impedance: 8 Ohms
Sensitivity: 86.5dB 1W 1m
Input Connectors: One pair 4mm binding posts
Dimensions (HxWxD): 340mm x 162mm x 284mm (+9mm grille)
Weight: 6kg ea.
Available Finishes: Walnut, Amarone, Diamond Black

Critic Reviews

A supremely composed speaker combining incredible sound and build” Click for full review.

” It might look elegant but the twenty5.21 packs a hefty punch.” Click for full review.

“…the PMC twenty5.21 is such a revealing and even-handed loudspeaker, its own characteristics are so subtle that only comparison with something much more expensive would reveal them.” Click for full review.

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