From left to right, the AUDIO FRAME X (ten) models. All main reproduction ranges work with Wolf von Langa modern field coil technology.
The Heart of every AUDIO FRAME X model is Wolf von Langa bass-midrange drive unit with flexible Thiele Small parameters from 0.7 to 0.1.
The impedance needles show the extreme low resonance frequency, whereas the total moving mass including suspension, spider, voice coil, lead wires and vented dust cap weighs less than 48 grams. The BL value reaches nearly 40!, the DC resistance measures above 12 ohms and efficiency goes up to 2.6% per drive unit capable of reproduction of low notes without enclosure from 29 Hz up.
