Supply of explosion-proof wall-mounted speakers, giant devaluation Shanghai amount. Giant amount of supply in Shanghai fire explosion-proof equipment, explosion-proof wall-mounted speakers (active), Shanghai amount giant the supply fire explosion-proof equipment, explosion-proof wall-mounted speakers (active), the amount of giant supply fire explosion-proof equipment, explosion-proof wall-mounted speakers (active) BYS- 1 explosion-proof speakers (referred to as the speaker) is suitable for installation in explosive gas atmospheres containing II C-class T6 temperature classification place for live broadcast and public address. This product meets the GB3836-2000 standard requirements. Within the explosion-proof speakers (active) equipped with power 15W power amplifier small signal transmission can be used, the user may not need to connected with large power amplifiers. This product has the characteristics of small signal attenuation, reasonable structure, beautiful shape, sound macro, small distortion, reliable performance, easy installation. The main technical parameters: 1, Ex-mark: Exd Ⅱ CT6 and Exd Ⅱ BT6 2, temperature range: -30 ° C ~ 60 ° C 3, Humidity range: ≤ 95% 4, Supply voltage: AC70 - 120V 5 Output Power: 3W, 5W, 10W, 15W 6, load impedance: 4Ω? line transformer parameters: input: AC120V (100V);??????????????????? Output: 4Ω?? Frequency Range: 150 ~ 15000Hz 9, Sensitivity: 9410 Dimensions: 180 × 180 × 100 mm; 11 installation dimensions: screw aperture Φ8.5mm, Pitch 60mm; 12 weight??? amount: 2.8 Kg into the line diameter 2-M22 × 1.5 (the line number and size of the diameter can be designed according to the needs of users production))