KEF M100 Technical Details

• Driver: 10 mm
• Frequency Response: 20Hz ~ 20kHz
• Sensitivity: 97 dB ± 4 dB (IEC-60711 at 1KHz)
• Impedance: 16±15% Ohm
• Maximum Input Power: 10 mW
• Noise Attenuation: -25 dB
• Connection: 3.5 mm
• Cable length: 1.3 m
• Weight: 18 g
• In the box: KEF M100 Hi-Fi Headphones, Eartips (S/M/L), Flight adapter, Carrying pouch, Documentation

KEF M400 Technical Details

• Driver: 40 mm
• Frequency Response: 20Hz ~ 20kHz
• Sensitivity: 101.5 dB ± 4 dB (IEC-318 at 1KHz)
• Impedance: 32±15% Ohm
• Maximum Input Power: 30 mW
• Noise Attenuation: -20 dB
• Connection: 2.5/3.5 mm
• Cable length: 1.3 m
• Weight: 175 g
• In the box: KEF M400 Hi-Fi Headphones, Detachable cable with mic and volume control, Flight adapter, Carrying pouch, Documentation