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"The "Khallık Fernını" opener sports very wispy cymbal and brush work across a widely spaced drum set. Some of it is so fine as to nearly fall below the treshold of audibility. The 4pi Plus.2 lowered that threshold and with it lifted a small damper on decay lengths."

"The illusion of paralleled performers playing the same notes was heightened. The breathiness of the solo bass ney was enhanced as well. Close-mic'd piano had clearly more overtone action, more energy spray off the strings. With Javier Perianes' inspired reading of Blasco de Nebra's Piano Sonatas [Harmonia Mundi], this effect was much subdued due to more farfield microphones. Now I had enhanced depth of field again."

"The 4pi Plus.2 is that Carnauba wax. Don't mistake this for brightness. It's not. This Elac action occurs above the region where a misjudged response telegraphs as bright. It's not about the Lowther shout domain. It's the realm of air."

"Another fringe benefit was better distinctiveness at lower levels. No matter what, reducing SPL fogs over the hifi window. It's not a matter of if but of when. This top-end loss and its various consequences are the things which classic tone controls—more or less crudely perhaps—compensated for. With the 4pi Plus.2 in the mix, the onset of this clouding over was delayed. Given that we do a lot of listening at lower levels, this was most welcome."

"Besides enhanced spaciousness, air and slightly glossier tone colours—plus all the obvious isolated stuff of better visibility for steeper more brilliant triangle hits and fierier violin flageolet—the perhaps primary benefit for visually oriented listeners should be a keener sense of 'holography'. That is about a level of distinctiveness and how individuated sounds peel out of their surroundings and against silence. Clearer separation is one aspect of it and as such most apparent on dense material. It's like turning up overhead lights to increase contrast."

"The 4pi's effectiveness comes as no surprise. It is perfectly logical and predictable... why haven't we heard more about this brilliant invention?..."

"It's Elac's 4pi radiation which makes the decisive difference. Because mbl's driver tech isn't available as an add-on and would likely be very inefficient and even costlier if it were, the 4pi Plus.2 occupies a league of its own. In my book, that makes it an especially super tweeter indeed."

"Transparency and image placement were both improved, while the tonality and harmonics of mid and high-frequencies were both significantly better. Percussion detail was more natural, the nature of the instrument more apparent. But it was the texture and tonality in the lower-mid and bass that really impressed, with much greater definition and detail readily apparent. Dynamic speed, precision and substance were all improved along with the shape and duration of individual notes, making dynamic contrasts more emphatic and musically effective. This increase in presence extended across the entire range, brass in particular gaining body and a satisfyingly realistic rip to its tone. Overall timing was also improved with musical phrasing making more sense."

"This ELAC super-tweter extends the performance available from existing speaker systems in a significant and musically imporlant way. High-frequency extension is no optional tweak - it's a musical necessity, making your system more natural and more naturally communicative."