Art. No. 902417 cm (6.5") HiFi woofer with coated paper cone, powerful drive and extended rear pole plate. Special voice-coil and elastic rubber surround for long strokes. Used in:
ALTO I [Extract from Klang & Ton: Value for money: very good]
ALTO II [Extract from HiFi Test: Value for money: very good, Extract from Klang & Ton: Value for money: very good]
Accessories:
NG 6,5"
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Frequency and impedance response - click.
| | Technical Data: |
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| Rated power | 50 Watt | | Maximum power | 80 Watt | | Nominal impedance | 4 Ohm | | Frequency response (-10 dB) | fu - 8000 Hz | | (fu: Lower cut-off frequency depending on cabinet) | . | | Mean sound pressure level | 86 dB (1W/1m) | | Maximum cone displacement | 20 mm | | Resonance frequency fs | 36 Hz | | Magnetic induction | 1 Tesla | | Magnetic flux | 314 µ Weber | | Height of front pole-plate | 4 mm | | Voice coil diameter | 2,5 cm | | Height of winding | 1,25 cm | | Cutout diameter | 14,8 cm | | Net weight | 1,1 kg | | D.C. resistance Rdc | 3,2 Ohm | | Mechanical Q factor Qms | 2,16 | | Electrical Q factor Qes | 0,51 | | Total Q factor Qts | 0,41 | | Equivalent volume Vas | 38 l | | Effective piston area Sd | 129 cm2 | | Dynamically moved mass Mms | 12 g | | Force factor Bxl | 4,2 Tm | | Inductance of the voice coil L | 0,61 mH |
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