Sonika mk2 all the Audel class in a four-inch bookshelf Sonika offers all the grace and elegance of Audel products in its small volume . Sonika represents the first step to get closer to the absolute reference of our high-end products. The most advanced construction technique in our catalog, attention to detail and first-rate cross-over, make Sonika the ideal choice for those who want to approach the Audel philosophy at an affordable price. reference components Sonika is equipped with a high- performance 4-inch woofer with a thick aluminum frame, to optimize its resistance and rigidity. The driver itself is made with a non-conductive fiberglass voice coil. The tweeter is a 29mm model with shielded neodymium. Sonika is a concentrate of technology. IRS (Internal Ribs System) a continuous research ... The new " rib " assembly system guarantees a mechanical stiffening of superior quality, as the alternating thickness acts as a bracing . The resulting channels are used for a " reasoned " insertion of the sound-absorbing material, so as to prevent the formation of standing waves inside the cabinet. The drivers are mounted on a 36mm plywood panel. The flare of the woofer is shaped so as not to cause the tube effect due to the thickness itself. • SYSTEM: 2.0 integrated bass reflex • CABINET: Multipanel System - Structure laminated birch wood • TWEETER: 29 mm soft dome • WOOFER: 4 inch • FREQUENCY RESPONSE: 48 Hz - 25,000 Hz • CROSSOVER POINT: 2,500 Hz • SENSITIVITY: 87 dB • NOMINAL IMPEDANCE: 4 ohm • POWER HANDLING: 25W – 100W • FINISH: Birch cabinet - Ebony cover - beeswax surfaces • DIMENSIONS: 260 x 150 x 252 mm (HxWxD) • WEIGHT: 10 Kg pair. Optional stand sold separately