“This tall quasi-ribbon based planars driven by some high-powered Pass Labs electronics including their model XS 150 monos ($65k) had me singing their praises to anyone that would listen. First off, for my ears, these panels sound as loud and dynamic as any box design, yet emit the lowest distortions and the among the clearest signal I have heard from such a design.
Credit their no transformer and no crossover technology as one major reason but more has to be uncovered about the speaker itself and the magnet structures which support the ribbons. The room was huge and the sound pressure level filled it with the greatest of ease without a hint of stress or strain.”
Clement perry