Pick Up only The MB3.5 B is a slim floorstander with two 5,25” carbon-coned drivers, a sealed ribbon tweeter and two 6.5” woofers. The MB3.5 B works as a 3-way speaker, where the two midrange-woofers are supported by two 6.5” aluminum coned woofers. The two carbon midrange-woofers are run in series for increased power handling. The MB3.5 B cabinet is heavy, braced and curved, with carbon reinforcements. The speaker is crossed over at 2600 Hz and the two added side woofers assist up to 150 Hz. The MB-series features high quality crossover with top quality components. The filter has been carefully tailored to linearize the frequency region where cone and cabinet geometry play a role and also to carefully tune the speaker to a natural sounding frequency response. Fabric grillfronts can be supplied as an additional accessory. Specification Details Size (B x H x D) 178 × 998 × 286 mm Weight 15.6 kg per unit Frequency Response 36 Hz – 40 KHz Impedance > 6 ohm Sensitivity 88 dB Crossover 500 Hz + 2600 Hz / Minimum phase Enclosure Curved, heavily braced, ventilated box design with front loaded port and adjustable aluminium feet Drive Units 1 × Ribbon tweeter · 1 × 5.25″ Mid/Woofer · 1 × 5.25″ Woofer Finish Options Black-silk, White-silk, or Walnut Amplification Recommended high quality amplifiers > 50 W