<B>A&E SPECIFICATIONS</B>: The power amplifier shall be Lowell Model PA250A which shall provide 250 watts of continuous RMS power directly to a 4 ohm speaker load. Rear switch shall connect internal 25V/70V output transformer for distributed speaker system. Includes master volume control, main power switch, circuit breaker, balanced telephone paging input, and 600 ohm line level balanced input. The PA250A shall measure 19 in.W x 3.5 in.H x 12.5 in.D.