Technics SB-A386 is a 3-way, 4-speaker system with bass reflex that provides a frequency range of 35 Hz - 35 kHz (-16 dB). It has an impedance of 8 ohms and can handle an input power of up to 260W (music) or 130W (DIN). The output sound pressure level is 89 dB / W (1.0 m). The speakers feature a 30 cm (12") cone woofer, a 25 cm (9-3/4") cone woofer, a 10 cm (4") cone midrange, and a 6.5 cm (2-1/2") cone tweeter. The crossover frequencies are 3 kHz and 6 kHz. The speakers also incorporate speaker protection circuitry to protect them from damage caused by excessive input or abnormal signals.