8.5 cm (3.4") full-range speaker with plastic cone and rubber surround. Very high efficiency due to large ferrite magnets. Well-balanced frequency response. Applications - Sound lines - Small HiFi speakers Technical data Rated power 10 W Music power 15 W Rated impedance Z 8 ohm Transmission range (-10 dB) 75 - 18,000 Hz Mean sound pressure level 87 dB (1 W/1 m) Resonant frequency fs 120 Hz Upper pole plate height 2.5 mm Voice coil diameter 20 mm Winding height 6 mm Baffle opening 80 mm Net weight 0.486 kg DC resistance Rdc 7.2 ohm Mechanical Q factor Qms 3.30 Electrical Q factor Qes 0.82 Total Q factor Qts 0.65 Equivalent volume of compliance Vas 1.53 l Effective diaphragm area Sd 37.3 cm² Dynamic moving mass Mms 2.4 g Drive factor Bxl 3.95 Tm https://elecena.pl/product/18519592/2091-8-ohm-full-range-speaker 2021-05-20 https://elecena.pl/product/18519592/2091-8-ohm-full-range-speaker 2021-11-15 https://elecena.pl/product/18519592/2091-8-ohm-full-range-speaker 2022-12-02 https://elecena.pl/product/18519592/2091-8-ohm-full-range-speaker 2025-08-08