Features
- Vented cast aluminium chassis for optimum strength and low compression
- Mineral filled PP-cone made in-house
- Soft low damping rubber surround for improved transient response
- Non-conducting fibre glass voice coil former for minimum damping
- Extended copper sleeve on pole piece for low inductance and low distortion
- CCAW voice coil for reduced moving mass
- Long life silver lead wires
- Vented pole piece for reduced compression
Specs
- Nominal Impedance 4 Ω
- DC resistance, Re 3.1 Ω
- Voice coil inductance, Le 0.12 mH
- Effective piston area, Sd 82 cm2
- Voice coil diameter 30.5 mm
- Voice coil height 15 mm
- Air gap height 5 mm
- Linear coil travel (p-p) 10 mm
- Magnetic flux density 1.0 T
- Magnet weight 0.54 kg
- Net weight 1.48 kg
- Free air resonance, Fs 35.5 Hz
- Sensitivity (2.83 V / 1 m) 90 dB
- Mechanical Q-factor, Qms 5.26
- Electrical Q-factor, Qes 0.30
- Total Q-factor, Qts 0.28
- Moving mass incl. air, Mms 9.9 g
- Force factor, Bl 4.8 Tm
- Equivalent volume, VAS 19.4 liters
- Compliance, Cms 2.03 mm/N
- Mechanical loss, Rms 0.42 kg/s
- Rated power handling* 50 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.
