Description Product Reviews Valcom V1016 One Way Paging Wall Mount Self Amplified Speaker Valcom wall speaker One-way Traditional woodgrain finished cabinetry blends well with most environments Easy install Built-in amplifier Built-involume control on one-way speakers Dimensions: 9.6″H x 11.5″W x 4.2″ Walnut (dark brown cloth grille) VALCOM POWER UNITS: (-1) Ideal for Offices, Clinics, Dentist Waiting Rooms, Retail, and Schools. Valcom Power Units Every Valcom product is marked with either a positive, negative or neutral power unit. Simply add up the negative power units and then purchase a power supply with a greater value than the total power consumption of the system. If you have extra power units you can add speakers to the system at a later date, extra power is OK lower power will cause a performance problem on your paging system. One Valcom power unit = 50 mA, -24 Vdc 0 Reviews Hide Reviews Product Reviews