ELAC LINE 70-BS73 height x width x depth 283 × 170 × 284 mm weight 5.2 kg type 2-Way, bassreflex woofer 1 × 150 mm cone tweeter 1 × 25 mm dome crossover frequency 2,800 Hz frequency range (IEC 268-5) 45 ... 28,000 Hz sensitivity 87.5 dB / 2.83 V / m suitable for amplifiers 4 ... 8 Ω recommended amplifier power 20 - 120 W / channel nominal/peak power handling 50 / 70 W nominal impedance 4 Ω minimum impedance 3.8 Ω / 240 Hz |