5 cm (2") miniature speaker with plastic diaphragm (Mylar). Very compact design. Good speech reproduction.
 Differences to K 50 FL - 8 Ohm:
  
Typical Applications:
- Signal output in machines and other equipment where space is at a premium
- Well suited to outdoor applications and where ambient conditions are generally unfavourable
 
Technical Data:
| Rated power | 1 W | 
|---|
              | Maximum power | 2 W | 
              | Nominal impedance Z | 8 Ohm | 
              | Frequency response | 350–20000 Hz | 
     
                        | Mean sound pressure level | 85 dB (1 W/1 m) | 
              | Resonance frequency fs | 570 Hz | 
              | Voice coil diameter | 13 mm | 
              | Height of winding | 2 mm | 
              | Cutout diameter | 46 mm | 
              | Net weight | 0,014 kg | 
              | Protective system | IP 65 *) | 
              | Temperature range | −40 ... 70 °C |