20 cm (8") full-range speaker with tweeter dome. High efficiency. Suitable for full-range units as vocal or guitar monitors or as a mid-range unit for full-scale or musicians' PA systems. 
Typical applications:
- Midrange unit for full scale or musicians' PA systems
- Vocal or guitar monitors
- Fullrange speaker for electronic organs and keyboards
| Technical Data: | 
|---|
                                                   | Rated power | 40 W | 
                        | Maximum power | 70 W | 
                                 | Nominal impedance Z | 8 Ohm | 
                                  | Frequency response | fu–18000 Hz | 
                            | (fu: Lower cut-off frequency depending on cabinet) | . | 
                        | Mean sound pressure level | 92 dB (1 W/1 m) | 
                             | Opening angle (-6 dB) | 45°/4000 Hz | 
                             | Excursion limit | +/−4 mm | 
                        | Resonance frequency fs | 38 Hz | 
                        | Magnetic induction | 1,2 T | 
                        | Magnetic flux | 380 µWb | 
                        | Height of front pole-plate | 4 mm | 
                        | Voice coil diameter | 25 mm | 
                        | Height of winding | 8 mm | 
                        | Cutout diameter | 184 mm | 
                        | Net weight | 1,3 kg | 
                        | D.C. resistance Rdc | 6,2 Ohm | 
                        | Mechanical Q factor Qms | 3,47 | 
                        | Electrical Q factor Qes | 0,51 | 
                        | Total Q factor Qts | 0,44 | 
                        | Equivalent volume Vas | 110 l | 
                        | Effective piston area Sd | 214 cm² | 
                        | Dynamically moved mass Mms | 10 g | 
                        | Force factor Bxl | 6,1 Tm | 
                        | Inductance of the voice coil L | 0,8 mH | 
                                                                                                                                                                                                             | Temperature range | −25 ... 70 °C |