FR 9.15 - 4 Ohm
Art. No. 2054
Oval full-range driver (9 x 15 cm). Well-balanced frequency response makes this speaker ideal for both voice and music reproduction e.g. extremely well suited to use in vehicles. Minimum depth required.
Typical applications
- Vehicles of all types (road or rail), e.g. mobile homes, trams etc.
Attributes
- Moisturised cone
- Metal basket
Technical Data
| Rated power | 15 W |
|---|---|
| Maximum power | 30 W |
| Nominal impedance Z | 4 Ohm |
| Frequency response | 75–16000 Hz |
| Mean sound pressure level | 85 dB (1 W/1 m) |
|---|---|
| Opening angle (-6 dB) | 147°/4000 Hz hor. 180°/4000 Hz ver. |
| Excursion limit | +/−1,5 mm |
| Resonance frequency fs | 120 Hz |
| Magnetic induction | 0,9 T |
| Magnetic flux | 170 µWb |
| Height of front pole-plate | 3 mm |
| Voice coil diameter | 20 mm |
| Height of winding | 5 mm |
| Cutout diameter | 146 x 87 mm (oval) |
| Net weight | 0,277 kg |
| D.C. resistance Rdc | 3,5 Ohm |
| Mechanical Q factor Qms | 8,90 |
| Electrical Q factor Qes | 2,29 |
| Total Q factor Qts | 1,82 |
| Equivalent volume Vas | 2,9 l |
| Effective piston area Sd | 79 cm² |
| Dynamically moved mass Mms | 4,6 g |
| Force factor Bxl | 2,3 Tm |
| Inductance of the voice coil L | 0,3 mH |
| Temperature range | −25 ... 70 °C |
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