Nantong Heng [] FBY-2A Explosion-proof speaker (30-50W)

 Terminal FBY-2A-proof speaker can be used with explosive gases or high risk of dust, but also has a high noise area Ⅰ, Ⅱ area venues, the audio signal line is connected to the explosion-proof speaker speaker cavity through an input port on, tighten the compression nut. No live lid! Certified proof mark ExdⅡCT6 Certificate of Conformity CEx081318 Mechanical Material: aluminum housing, electrostatic spraying, installation and easy maintenance. Protection class IP65 Dimensions φ300 x 350 mm Unit Weight 4.5Kg Shipping Weight 5Kg outlet hole number one outlet hole thread size G-1/2 "Installation of indoor and outdoor wall mount ELECTRICAL Input Impedance: 4Ω / 8Ω / 16Ω or input audio Voltage: 70-110V power 35W - 50W Frequency response 300 ~ 4000Hz (± 1.5dB) sound pressure output 120dB ± 1dB (± 1.5dB) Electrical connection signal input terminals 1 core group 2