Performance
These new receivers are available in dimensions of Ø10mm, Ø11mm, Ø12mm, Ø13mm & Ø14.2mm and are all based on the same “pistonic” diaphragm technology where the piston part is made of a very stiff and light material and the surround part is made of a material with very high compliance.The “pistonic” diaphragm technology, normally only seen in much larger loudspeaker designs, gives the advantage of both a very low resonance frequency and superior bandwidth resulting in excellent sound reproduction properties.A typical free field measurement (as done for loudspeakers) with the receiver having no tuning filter on rear side (total open) clearly shows this very high bandwidth:
Free field measurement shows very high bandwidth.