Reference:
A273D
Two-way speaker with power rating of 6 W (selectable by rear switch to 3, 5 and 1 W), 100 V line. Connection of low impedance 8 ohms. 3" speaker for low and medium frequencies and 1" tweeter speaker for high frequencies. Frequency response of 150-20.000 Hz. Sensitivity 90 dB (1 W, 1 m and 1 kHz). Maximum sound pressure level 98 dB (6 W, 1 m and 1 kHz). Dimensions 141 x 95 x 100 mm. Weight 0.8 kg. Trapezoidal enclosure to improve directivity, black HIPS, metallic grille and steel mounting bracket for wall or ceiling.