Brand New! –Closed Box

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Note 1: Freeshipping within EU. For specific shipping rates outside EU please message us.

Note 2: Thisproduct is sent factory direct, please allow 10 to 15 days for shipping.

Note 3: We sell without taxesanywhere outside Europe and to valid VAT ID companies inside Europe. Please askus your price without Tax in those cases.

Note 4: Stands NOT included. Please, message us forquotation.

Note 5: Diamond Black Finishing. For other finishings see specific ad.


Although the twenty5.21i is the mostcompact model in the new range, there’s nothing small about the sound, whichhas the impact you’d expect from a much larger cabinet, thanks to PMC’sAdvanced Transmission Line technology. The speaker is ideal for use insmall-to-medium listening environments where space is at a premium, but whereyou still want detailed bass, ultra-realistic mids and delicate highs withmaximum musicality. Equally happy mounted on a stand or a bookshelf, thetwenty5.21i offers maximum flexibility for placement, and also makes anexcellent choice for effects speakers in an immersive sound system.


ATL (Advanced Transmission Line)


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 soundis the Advanced Transmission Line (ATL) bass-loading technology, professionallyproven all around the world.

ATL uses energy generated by the bass unit in a muchmore intelligent, efficient way than speaker designs based on ported or sealedboxes.

PMC’s Laminair™ aerodynamic vent takesaudio performance to the next level, by applying ATL aerodynamic principlesfrom high-performance engineering used from F1 to Le Mans and creating an evensmoother, laminar air flow at the exit from the transmission line.

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

Faster, cleaner bass and higher definition sound throughout

Turbulence is eliminated, increasing the efficiency of the ATL

Removes air noise — only the music remains

Higher maximum output and bass with supreme timing and dynamics


Diamond Black Finishing

Optional standsnot included.


Dimensions:H 340mm 13.4” x W 162mm 6.4” x D 284mm 11.2” incl.binding posts (+9mm grille)

Drive Units: LFPMC 5.5”/140mm long-throw g-weave™ cone with cast alloy chassis -
HF PMC/SEAS®, 19mm twenty5i series, SONOMEX™ fabric softdome, 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

Weight: 6kg (13.2 lbs ea.)

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
  • Twenty5.21i
  • Black Diamond
Made In
  • United Kingdom

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Pure Pro Audio & Hi Fi

Málaga, Spain
Joined Reverb:2020

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Your purchases help youth music programs get the gear they need to make music.

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