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Authorized dealers for PMC twenty5.21i

  • Holt Hill — online and in-store — Andover, Massachusetts, United States (website)
  • The Music Room — online and in-store — Erie, Colorado, United States (website)
  • Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
  • Adventures in HiFi — in-store — Chester, England, United Kingdom (website)
  • Ajasom — online and in-store — Amadora, Lisboa, Portugal (website)
  • ALAIN CHOUKROUN — online and in-store — Paris, Île-de-France, France (website)
  • Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
  • Altitudo Audio — online and in-store — Winnipeg, Manitoba, Canada (website)
  • Ambiance Concert — in-store — Angers, Pays de la Loire, France (website)
  • Analogue Seduction — online and in-store — Whittlesey, England, United Kingdom (website)

and 96 more verified dealers

PMC twenty5.21i #1
PMC twenty5.21i variant 1
PMC twenty5.21i variant 2
PMC twenty5.21i variant 3
PMC twenty5.21i variant 4

PMC twenty5.21i

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Compact yet commanding, the twenty5.21i marries lightning-fast bass, low-distortion transparency and a remarkably expansive soundstage. Its Advanced Transmission Line loading gives bass lines real grip while preserving clean, natural voices and sharply defined transients. hi-fi+ admired its timing and transparency; hifitest.de found it exceptionally composed at low and high levels.

View at PMC
Specifications11 reviews & sources

WATT RECOMMENDS

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92/100
Rating for twenty5.21i

Deliciously Crispy

Sound Quality

91/100

Build Quality

91/100

Value for Money

95/100

Pros

Exceptionally fast, controlled and articulate bass for a compact stand-mount, with impressive weight and low distortion.

Large, airy and precisely layered soundstage with strong instrument separation and stable imaging.

Highly transparent, neutral and low-noise presentation reveals fine detail, timing and natural vocal expression.

Cons

Deep-bass extension and large-scale dynamics remain limited by the compact cabinet; a subwoofer may suit full-range or larger-room listening.

Its revealing, slightly cool balance can expose harsh recordings and may not satisfy listeners seeking warmth or forgiving treble.

The polished midrange can smooth away some grit and fine textural edge.

WATT RECOMMENDS

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What Reviewers Are Saying

"Small loudspeaker, big listening cinema."

— hifitest.de

SOUND QUALITY PERFORMANCE 91/100

Reviews consistently portray the twenty5.21i as an unusually accomplished compact stand-mount: fast, neutral-to-slightly-cool, highly transparent and exceptionally clean under pressure. Its strongest calling cards are taut, deeply informative bass, a spacious and sharply organised presentation, and transient precision, though listeners wanting a warmer balance, forgiving treble, or full-range scale should audition carefully.

Bass

91/100

Reviewers repeatedly praise bass speed, control and articulation, describing it as dry, clean, muscular and able to reveal the character and texture of individual bass instruments. For a compact speaker with a 5.5-inch driver, its weight and extension are widely considered remarkable, especially nearer a wall, but several reviewers note that it is not the final word in deep-bass reach and that a subwoofer remains worthwhile for genuinely full-range listening.

Mid

92/100

The midrange is widely admired for its seamless integration, low coloration, tonal insight and exceptionally clean transient definition on voices and instruments. It is described as smooth, open and emotionally communicative, although The Audiophile Man found that this polished character can occasionally soften desirable grit, texture and edge detail.

Treble

89/100

The top end is consistently described as clean, airy, extended and refined, with delicate cymbal work and strong retrieval of ambience. It is also revealing rather than forgiving: some reviewers heard a little extra hi-hat prominence, while others caution that poor or overly bright recordings are exposed rather than smoothed over.

Soundstage Imaging

91/100

The speaker earns particularly strong praise for disappearing well, extending wide and high, and separating instruments into a large, layered and coherent acoustic picture. Image focus and spatial scale impress across reviews, though two reviewers found front-to-back depth less convincing than its width, height and image specificity.

Dynamics

90/100

Fast transients, microdynamic shading, timing and drum attack are recurring strengths, with reviewers calling out its ability to stay composed at substantial levels. It has more punch and power handling than its dimensions suggest, but it cannot entirely escape the macro-dynamic limits of a small stand-mount and benefits from an amplifier with healthy power reserves.

Assessments of Build Quality, Usability, and Overall Propositions.

Build Quality

91/100

Reviewers highlight the rigid, heavily braced HDF transmission-line cabinet, carefully implemented internal damping, quality driver engineering and substantial crossover mounting. The Audiophiliac also calls the real-walnut cabinet stunning and jewel-like, while The Ear notes the well-finished custom terminals and thoughtful protective grille arrangement.

Value for Money

95/100

At roughly £2,000-£2,400 depending on finish, or about $3,450 per pair in the US, this is an undeniably premium compact speaker. Nevertheless, hi-fi+ says it may be the best small stand-mount available for the money, and A British Audiophile similarly doubts that buyers will find better at around £2,200; reviewers generally see its resolution, bass control and engineering as compelling against similarly priced rivals.

Reviews & Sources

Professional reviews and sources for this product's Watt'n Potatoes analysis.

Online Reviews & Mentions

YouTube Reviews

Forum Mentions

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Specifications

Frequency Response
46Hz - 25kHz
Sensitivity
86.5dB 1W 1m
Recommended Amp Power
25 - 150W
Effective ATL™ Length
1.72m 5.6ft
Impedance
8 Ohm
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
Crossover Frequency
1.7kHz
Input Connectors
One pair 4mm binding posts
Dimensions
H 340mm 13.4” W 162mm 6.4” D 284mm 11.2” incl. binding posts (+9mm grille)
Weight
6kg (13.2 lbs ea.)

Manufacturer's Description — PMC

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.


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Authorized dealers for PMC twenty5.21i

  • Holt Hill — online and in-store — Andover, Massachusetts, United States (website)
  • The Music Room — online and in-store — Erie, Colorado, United States (website)
  • Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
  • Adventures in HiFi — in-store — Chester, England, United Kingdom (website)
  • Ajasom — online and in-store — Amadora, Lisboa, Portugal (website)
  • ALAIN CHOUKROUN — online and in-store — Paris, Île-de-France, France (website)
  • Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
  • Altitudo Audio — online and in-store — Winnipeg, Manitoba, Canada (website)
  • Ambiance Concert — in-store — Angers, Pays de la Loire, France (website)
  • Analogue Seduction — online and in-store — Whittlesey, England, United Kingdom (website)

and 96 more verified dealers