Pa Horn Weatherproof Abs Speaker PA Loudspeaker Speaker Horn 6.5 x 11 Weatherproof PA Speaker SPC-40RP. Speco's 6.5 PA speaker is completely weatherproof. It offers a frequency response of 200 to 15 kHz and a 40 watt maximum power rating. It features a sensitivity of 120 dB with an impedance of 8 ohm. Includes a white base that pivots 90 degrees.11196