Due to its complex ATL™ the twenty.21 has significantly more dynamic grip and depth of bass than any other speaker of this size.

It is a very effective musical communicator, with fine warmth through the mid range and a sweet and extended treble. It all adds up to a dynamite design, capable of dominating the compact loudspeaker market by reproducing all genres of music with ease.


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    • twenty.21
    • June '13
    • twenty.21
    • April '12
    • twenty.21
    • Awards '13/14
    • twenty.21
    • Jan '14
    • twenty.21
    • July '12

Complimentary products and accessories

Customer Reviews

"The Twenty 21 book shelf speakers have reinvigorated my love for vinyl - superior sound."
Mr B, Edwardsville
"Lovely sound and more detail than I ever realised was possible"
Mr A, Curry Rivel, Near Langport, Somerset
"After 2 days impressions are excellent. Very pleased"
Mr P, Manchester
"Well done excellent product very good sound."
Mr K, Killarney
"Really litlle ones, first impression is superb! In a few days they will sound even better!! Again many thanks to the PMC team! Great job. Greetz from Belgium"
Mr W, Wetteren
"They're only 2 weeks new, so still running in, but I'm still amazed at how dynamic and transparent such a small speaker can be. I've owned Monitor Audio (GX50) and B&W (CM1) standmounts previously and while I've enjoyed the talents of both, I think the Twenty.21's are the most natural sounding. Voices, brass instruments and acoustic material sound wonderful. The balance is a little bright at present, so I am experimenting with all copper interconnects and speaker cable rather than QED and Chord silver coated cables. I've also dug out my old Rega Brio-R amplifier which seems a very nice match."
Mr M, Reading


ATL Tecnology

PMC’s unique (Advanced Transmission Line) enclosures have taken loudspeaker design to the highest level, using sophisticated cabinet construction, proprietary drive units, and patented absorption materials and techniques. The benefits are enormous compared to the relatively simple sealed and ported designs currently available elsewhere. Find out more

ATL Tecnology