Koss Pro4AA

Data

General

• Manufacturer: Koss
• Model: Pro4AA
• Years of manufacture: 1970 - 1986, 1988 to date
• Weight:
• Made in: USA
• Original price (UVP): approx. 100 US-$ (80 €)

Technical Data

• Principle: Dynamic, closed
• Coupling to the ear: Ear wrapping
• Rated power handling:
• Thrust force:
• Frequency response: 10 - 25,000 Hz
• Distortion factor: < 0,1%
• Impedance: 250 Ohm
• Sound pressure: 95 dB
• Plug: jack 6.3/3.5 mm
• Cable: 3 m spiral cable

Special Features

• list here

Remarks

Other models of the same series: