FRS 7 4 OHM Art. No. 2011 6.5 cm (2.5") fullrange speaker with balanced frequency response and very good highs. Especially suitable as built-in speaker for music reproduction and as driver for 100 V network column speakers. Outstandingly high efficiency compared to the small size. Typical applications: - Narrow network column speakers - Control speaker for electronic devices - Model construction - Electronic musical instruments Attributes : - Water proof cone - Metal basket - 100 °C temperature resistant
sketch frequency- and impedance response	Technical Data: Rated power 8 W Maximum power 15 W Nominal impedance Z 4 Ohm Frequency response 200–20000 Hz Mean sound pressure level 88 dB (1 W/1 m) Maximum cone displacement 3 mm Resonance frequency fs 250 Hz Magnetic induction 1,2 T Magnetic flux 160 µWb Height of front pole-plate 2 mm Voice coil diameter 14 mm Height of winding 4 mm Cutout diameter 61 mm Net weight 0,2 kg D.C. resistance Rdc 3,6 Ohm Mechanical Q factor Qms 3,21 Electrical Q factor Qes 1,96 Total Q factor Qts 1,22 Equivalent volume Vas 0,3 l Effective piston area Sd 22 cm² Dynamically moved mass Mms 0,8 g Force factor Bxl 1,7 T m Inductance of the voice coil L 0,3 mH Heat resistance −25 ... 100 °C Similar Products FR 7 4 OHM FRS 7 8 OHM FRS 7 S 8 OHM K 64 WP 50 OHM K 64 WP 8 OHM K 64 WPT 8 OHM
radiation pattern 2000 Hz radiation pattern 5000 Hz radiation pattern 10000 Hz