diffusori da incasso a parete is8tSonance Invisible Series Sold: Single KEY FEATURES MOTION FLEX TECHNOLOGY A suite of advances in invisible speaker engineering for unparalleled acoustic performance from an invisible speaker WAVE FLEX DRIVE UNIT High bandwidth midrange and high frequency transducer that leverage the bending wave principle, delivering velvety smooth mids and crystal clear highs AIR FLEX WOOFER Glass fiber woofer coupled to an acoustically inert diaphragm to move a