Features
- Proprietary cone material with natural fibres made in-house
- Shortened voice coil optimized for pure midrange reproduction
- High damping Butyl rubber surround for non-resonant sound character
- Vented pole piece for reduced compression
- Vented cast aluminium chassis for optimum strength and low compression
- CCAW voice coil for reduced moving mass
- Long life silver lead wires
- Non-conducting fibre glass coil former for minimum damping
Specs
- Nominal Impedance 4 Ω
- DC resistance, Re 3.2 Ω
- Voice coil inductance, Le 0.15 mH
- Effective piston area, Sd 50 cm2
- Voice coil diameter 25.4 mm
- Voice coil height 9.4 mm
- Air gap height 5 mm
- Linear coil travel (p-p) 4.4 mm
- Magnetic flux density 1.03 T
- Magnet weight 0.4 kg
- Net weight 0.92 kg
- Free air resonance, Fs 63.5 Hz
- Sensitivity (2.83V/1m) 90.5 dB
- Mechanical Q-factor, Qms 4.19
- Electrical Q-factor, Qes 0.35
- Total Q-factor, Qts 0.32
- Moving mass incl. air,Mms 4.2 g
- Force factor, Bl 3.9 Tm
- Equivalent volume, Vas 5.3 liters
- Compliance, Cms 1.5 mm/N
- Mechanical loss, Rms 0.4 kg/s
- Rated power handling* 50 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.
