PMC twenty5.21i

Although the twenty5.21i is the most compact model in the new range, there’s nothing small about the sound, which has the impact you’d expect from a much larger cabinet, thanks to PMC’s ATL technology.


Introducing the twenty5.21i: Compact Model with Powerful Sound & PMC's Advanced Transmission Line Technology

Discover the twenty5.21i, the most compact model in the PMC range. Despite its small size, this speaker delivers an impactful sound that rivals larger cabinets. Experience the exceptional audio performance enabled by PMC's Advanced Transmission Line technology. Ideal for small-to-medium listening environments where space is a premium, the twenty5.21i offers detailed bass, lifelike mids, and delicate highs, providing maximum musicality.

Enhance your listening experience with the twenty5.21i, perfect for any space. Whether placed on a stand or a bookshelf, this speaker offers unparalleled flexibility for optimal placement. Additionally, it excels as an effects speaker in immersive sound systems. Choose the twenty5.21i for its compact size, powerful sound, and versatility. Explore the possibilities of exceptional audio today.

  • Greater detail & more natural
  • A full, rich sound at any volume level
  • Deeper bass from a smaller cabinet

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.


Crossover Frequency: 1.7kHz

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: 1.72m 5.6ft

Frequency Response: 46Hz - 25kHz

Impedance: 8 Ohm

Input Connectors: One pair 4mm binding posts

Sensitivity: 86.5dB 1W 1m

Recommended Amp Power: 25 - 150W

Recommended Drive Unit Torque Settings: HF: 0.6Nm LF: 0.75Nm

Product Type: Speakers

lwh: 340x162x284

Weight: 6g

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