Performance that endures AM-1 is entirely sealed, in order to keep the elements at bay. It’s tough and hard-wearing too, and its clever one-piece mounting system with 220-degree rotation means it’s ready to perform wherever you want it to, come rain or shine. Easy to install, great to listen to A one-plug, simple-to-install mounting system means AM-1 is happy vertically or horizontally. Plus, smart engineering means AM-1 sounds great whichever way you choose to mount it. Specified and built without compromise With our trademark Nautilus tube-loaded 25mm aluminum dome tweeter and 130mm glassfiber mid/bass driver supplemented by an auxiliary bass radiator for solid, powerful bass response, AM-1 has sound and scale way beyond its compact dimensions. Specifications Technical features: Nautilus™ tube loaded aluminium dome tweeter, Glassfibre cone bass/midrange, Auxiliary Bass Radiator (ABR) Description: 2-way system with Auxiliary Bass Radiator (ABR) Drive units: 1x ø25mm (1in) aluminium dome high-frequency, 1x ø130mm (5in) glassfibre cone bass/midrange Frequency range: -6dB at 46Hz and 50kHz (wall mounted) Frequency response: 51Hz – 22kHz on reference axis (wall mounted) Sensitivity: 86dB (2.83V, 1m) Total harmonic distortion: <1% 200Hz – 20kHz (86dB, 1m) Nominal Impedance: 8 Ohm (5.2 Ohm min) Recommended amplifier power: 20W – 100W into 8 Ohm on unclipped program Dimensions Height: 310mm (12 1/4in) (Includes wall bracket) Width: 180mm (7in) Depth: 210mm (8 1/4in) Neto weight: 4kg Package Contents: Bowers & Wilkins Outdoor Loudspeaker AM-1, Black, 2Pcs, Wall bracket, Manual.