- Loudspeaker system 2-way shelf loudspeaker system. Vented box design - Tweeter 29mm high definition DAD driver. DKM dome diaphragm. Visco-elastically baffle decoupling. Sonus faber design - Midwoofer 150mm cone driver. Ultra-free compression basket, Sonus faber design. Special custom diaphragm made with a real time air dried non pressed blend of traditional cellulose pulp and other natural fibers, developed according to the most natural sound. Ultra-dynamic performance and high linearity. Sonus faber design. - Crossover Anti-resonant design, optimized amplitude/ phase response for optimal space/ time performance. “Paracross topology”. Crossover frequency: 2.500 Hz - Frequency Response 45 Hz -25.000 Hz - Sensitivity 87 dB SPL (2.83V/1m) - Nominal Impedance 4 ohm - Suggested amplifier 30 W -150 W without clipping