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
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) |
|---|---|
| Opening angle (-6 dB) | 149°/4000 Hz |
| Excursion limit | +/−1,5 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 | 3,5 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 Tm |
| Inductance of the voice coil L | 0,3 mH |
| Temperature range | −25 ... |
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