2-Way loudspeaker system as a dedicated top-box or personal mini-monitor and should be supported by subwoofer below 100Hz. SP220 uses one 200mm(8”) mid-woofer ferrite with a high escursion voice coil and a driver from 25mm(1”) in Mylar on a rotatable horn. SP220 is built entirely of multilayer of phenolic from 15mm BIRCH treated. The passive crossover with a low tolerance 12dB slope for the woofer and 18dB low distortion ensure a sound and maximum reliability. SP220 is working in Full-Range.