FR 87 4 OHM Art. No. 4630 8.7 cm (3.4") fullrange speaker with balanced frequency response and high efficiency. For speech and music reproduction in electronic divices and vehicles. Typical applications: - Control speaker for electronic devices - Vehicles - Electronic musical instruments Attributes: - Moisturised cone - Metal basket Used in / Accessories: GRILLE FR 87
sketch frequency- and impedance response	Technical Data: Rated power 10 W Maximum power 15 W Nominal impedance Z 4 Ohm Frequency response 100–20000 Hz Mean sound pressure level 85 dB (1 W/1 m) Resonance frequency fs 137 Hz Voice coil diameter 15 mm Cutout diameter 80 mm Net weight 0,21 kg D.C. resistance Rdc 3,5 Ohm Mechanical Q factor Qms 6,4 Electrical Q factor Qes 1,56 Total Q factor Qts 1,25 Equivalent volume Vas 1,3 l Effective piston area Sd 37 cm² Dynamically moved mass Mms 2 g Force factor Bxl 2,1 T m Inductance of the voice coil L 0,2 mH Heat resistance −25 ... 70 °C Similar Products F 8 SC 8 OHM FR 8 4 OHM FR 8 8 OHM FR 8 JS 8 OHM FR 8 WP 4 OHM (black) FR 8 WP 4 OHM (white) FR 8 WP 8 OHM (white) FRS 8 4 OHM FRS 8 8 OHM FRS 8 M 8 OHM SC 8 N 8 OHM SL 87 WPM 4 OHM SL 87 WPM 8 OHM
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