Features • Passive bookshelf speakers • Designed for use as front main or surround speakers (a receiver or an amplifier is needed) • ¾ inch (19mm) silk dome tweeter provides accurate high frequency response • 4 inch (116mm) Nomex diaphragm driver delivers optimum transient response • Front-facing bass reflex port enhances low-frequency performance • High quality crossovers ensure balanced audio equalization • 12mm MDF enclosure reduces cabinet resonance • Speakers designed for desktop use or wall mount placement (see image) Specifications Frequency response :50 – 20,000 Hz Output sound pressure level :77 dB (1W/1M) Rated power :5W – 20W Impedance :6 Ohm Frequency division point :1700 Hz Bass unit :4 inch (116mm) Treble unit :φ19mm silk film tweeter Net weight :6kg Dimensions :128 x 238 x 168 mm (WxHxD) Inner Carton : 426 x 286 x 185 mm (LxWxH), 6.5 kg (gross weight)