BOSCH LBC 3484/00 20W horn speaker , ลำโพงฮอร์น , ลำโพงฮอร์นเสียงดี , ลำโพงฮอน , ลำโพงฮอร์นกลางแจ้ง

• High efficiency driver
  
• Excellent speech reproduction 75 W (max power)
  
• Provision for inside mounting of the optional line/
  
• loudspeaker supervision board
  
• Water-and dust protected to IP 65

Technical Specifications
Electrical

• Maximum power 75 W
  
• Rated power 50 / 25 / 12.5 W
  
• Sound pressure level at 50 W / 1 W (1 kHz, 1 m) 130 dB / 110 dB (SPL)
  
• Effective frequency range (-10dB)350 Hz to 4 kHz
  
• Opening angle at 1 kHz/4 kHz (-6 dB) 60° / 28°
  
• Rated voltage 100 V Rated impedance 200 ohm
  
• Connector Screw terminal block

Mechanical

• Dimensions (L x Dmax) 499 x 490 mm (20 x 19.6 in)
• Weight 6 kg (13.22 lb)
  
• Color Light grey (RAL 7035)
  
• Cable diameter 6 mm to 12 mm
  
• (0.24 in to 0.47 in)
• Environmental
  
• Operating temperature -25 ºC to +55 ºC (-13 ºF to +131 ºF)
  
• Storage temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF)
  
• Relative humidity <95%