PMC Twenty5.21i, Bookshelf speakers

The new and improved version of the ever popular PMC twenty5 series is HERE! The twenty5i. 

These are the baby bookshelves of the range and like all the PMC speakers sport an Advanced Transmission Line built into the cabinet that controls air and vibrational energy flow to squeeze as much sound and low frequency out of a speaker this small as is humanely possible. They quote a 46Hz limit for these which is really quite remarkable. But this is a feature that was present in the older non 'i' model as is the laminated front airflow port, the bass driver and the size of the speakers. In fact, PMC, states that not enough was upgraded with this iteration to warrant a completely new model name... what has changed, you ask? Well the tweeter has been completely revamped. It is a two part design with an inner 19mm dome and an outer 34mm dome leaving the 19mm dome to deal with dispersion of sound and frequency response and the 34mm dome integrates more seamlessly with the bass driver. This couple with a new crossover design means a more uniformed, consistency across the whole frequency band. 


UK Official site for the PMC twenty5.21i 

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Product Description


Available Finishes:Walnut, Diamond Black, Oak, White Silk

Crossover Frequency:1.7kHz

Dimensions:H 907mm (35.7”) x W 162mm (6.4”) (238mm incl. plinth bars) x D 330mm (13”) (+9mm grille)

Drive Units:LF PMC 5.5”/140mm long-throw g-weave™ cone with cast alloy chassis
HF PMC/SEAS®, 19mm twenty5i series, SONOMEX™ fabric soft dome, Ferrofluid cooled, with 34mm surround and dispersion grille

Effective ATL™ Length:2.4m (7.8ft)

Frequency Response:28Hz – 25kHz

Impedance:8 Ohm

Input Connectors:One pair 4mm binding posts

sensitivity:86.5dB 1W 1m


Free Shipping Information

We offer free shipping to metropolitan areas on all orders over $100, except for orders containing the following products:

Televisions, Floorstanding speakers, Subwoofers and Package systems.

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