- Dia: 50 mm, Height: 17.8 mm
- Output: nom .2 watt and max .4 watt
- Frequency range: 500 – 4000 Hz
- Net weight: 53 g
- Impedance: 60 ohms
- Dia: 57 mm, Height: 17.8 mm
- Output: nom .2 watt and max 4 watt
- Frequency range: 400 – 4500 Hz
- Net weight: 54 g
- Impedance: 8 ohms