Acoustic box for outdoor (IP55) 2-way. RMS power of 20 W selectable by means of a switch (20, 10, 5 and 2.5 W), 100 V / 8 ohm. With 4" woofer and 1" tweeter. Sensitivity of 88 dB SPL (1 W, 1 m, 1 kHz) and maximum acoustic pressure of 101 dB SPL (20 W, 1 m, 1 kHz). Frequency response from 90 Hz to 20 kHz. Includes adjustable U-bracket for wall mounting. Dimensions 158 x 238 x 129 mm. Finished in black HIPS, with grid and aluminum support.