Einstein Audio Components official info about their The Speaker loudspeakers…
2-way sealed-box reference monitor
frequency response 45 Hz-20 Khz.
Sensitivity 86 dB @ 8 Ohms, benign phase
Drivers 17 cm (8 inch) mid-bass, 2,5 cm (1 inch) Tweeter Dimensions (h x w x d) 60 x 40 x 15 cm.
Weight 28 kg per speaker
recommended amplifier 20-100 w at 8 Ohm