- Comes pre-assembled with back can and mounted transformer - Features a quick-flip 70 or 25 Volt selector switch and an easy-select transformer wattage dial - The choice of 8 or 9 individual wattage tap settings covers a complete range of uses - This flame-retardant ABS unit also comes with insulated wires, has an attached metal seismic safety loop and built-in easy mount tabs for securing the unit - Ideal, all-purpose value speaker covering a wide range of commercial applications - 8 Ohm tap selector also means the speakers can be kept on-hand for unexpected residential installation needs