| Type | Installation speaker |
| Engineering Principle | 2-way free air system |
| Nom. /Music power handling | 50 / 100 watts |
| SPL (1 watt/1m) | 86.5 db |
| Frequency response | 50...40.000 Hz |
| Crossover frequency | 2.900 Hz |
| Woofer | 135 mm (5''), aluminum |
| Tweeter | 25 mm (1''), aluminum |
| Special Features | Adjustable tweeter level Adjustable tweeter Gold-plated clamp contacts |
| Nominal Impedance | 8 ohms |
| Dimensions (WxHxD) | 19 x 27 x 7 cm (7.5'' x 10.6'' x 2.8'') |
| Installation opening | 15 x 23 cm (5.9'' x 9.1'') |
| Installation depth | 7 cm (2.8'') |
| Weight | 1.3 kg |
| Finish | White |
| Available accessories | ER 4 WFB 500 |
