Elac : 4pi Plus 2 (Super tweeter)
All around perfect sound

The 4Pi tweeters disperse sound from the body of the speaker, allowing for a spacious and very large sound stage effect.

The combination of direct-radiating loudspeakers, providing precise location and imaging and the omni-directional 4Pi Plus.2 ribbon super-tweeter providing an open and airy sound, results in perfect spaciousness not found with any conventional loudspeaker.

4Pi Technology

Immerse yourself in music - the 4Pi ribbon tweeter produces 360° surround sound, making this speaker's audio performance particularly impressive. 360 degree omnidirectional ribbon tweeter yields a resonance-free upper cut-off frequency of 53 kHz and makes this tweeter an ideal component for the reproduction of SACD and DVD-A. Its impressive and silky sound quality gives rise to airy sound that comes off easily.

The principle:

An 0.006 mm aluminum ribbon forms the membrane, which due to its low weight shows an extroardinarily high sensitivity. When a current passes this membrane it expands and contracts like a breathing cylinder. Driven by a strong neodymium magnet system, the flexible ribbon yields maximum levels up to 53,000 Hz.

Technical data