Professional conference microphone  series ,condenser conference microphone

SM - 557 Technique Parameter
• Capsule Type: condenser
• Polar pattern: Hypercardioid
• Output impedance: 75 Ω balanced 
• Frequency response :30 Hz - 18 KHZ
• Sensitivity: - 40 dB ± 2 dB
• Power supply  : DC4.5V / DC 48V phantom 
• Pickup distance: 20 - 60 cm

SM - 556 Technique Parameter
• Capsule Type: condenser
• Polar pattern: Hypercardioid Uni-directional
• Output impedance: 200 Ω balanced 
• Frequency response :100 Hz - 18 KHZ

• S/N Ratio:>65dB
• Sensitivity: - 30 dB 
• Power supply  : 3V / 48V 

• Current consumption:2mA
• Pickup distance: 10 - 100 cm

• Material:Zinc alloy Metal seat

• Cable length : 8m

SM - 001 Technique Parameter
• Capsule Type: condenser
• Polar pattern:cardioid
• Output impedance: 75 Ω 
• Frequency response: 40 Hz - 16 KHZ
• Sensitivity: - 40 dB ± 2 dB
• Power supply  : DC3V / DC 48V phantom automatic conversion
• Pickup distance: 20 - 60 cm

SM - 120 Technique Parameter
• Capsule Type: condenser
• Polar pattern: cardioid
• Output impedance: 75 Ω  
• Frequency response :40 Hz - 16 KHZ
• Sensitivity: - 38 dB ± 2 dB
• Power supply  : DC3V / DC 48V phantom automatic conversion
• Pickup distance: 20 - 60 cm

SM - 551 & SM-555 Technique Parameter

• Avoid the phone interfere

• Capsule Type: condenser
• Polar pattern: Hypercardioid
• Output impedance: 75 Ω balanced 
• Frequency response :30 Hz - 18 KHZ
• Sensitivity: - 40 dB ± 2 dB
• Power supply  : DC9V / DC 48V phantom 
• Pickup distance: 20 - 60 cm

SM - 818 Technique Parameter
• Capsule Type: condenser
• Polar pattern: Hypercardioid
• Output impedance: 75 Ω  
• Frequency response :40 Hz - 16KHZ
• Sensitivity: - 40 dB ± 2 dB
• Power supply  : DC3V / DC 48V phantom automatic conversion
• Pickup distance: 20 - 60 cm

SM - 003 Technique Parameter
• Capsule Type: condenser
• Polar pattern: cardioid
• Output impedance: 200 Ω 
• Frequency response: 40 Hz - 17KHZ
• Sensitivity: - 40 dB ± 2 dB
• Power supply  : DC3V / DC 48V phantom automatic conversion
• Pickup distance: 20 - 80 cm

SM - 318 Technique Parameter
• Capsule Type: condenser
• Polar pattern: cardioid
• Output impedance: 75 Ω balanced 
• Frequency response :40 Hz - 16KHZ
• Sensitivity: - 40 dB ± 2 dB
• Power supply  : DC3V / DC 48V phantom 
• Pickup distance: 20 - 50 cm

SM - 316 Technique Parameter
• Capsule Type: condenser
• Polar pattern: cardioid
• Output impedance: 75 Ω 
• Frequency response :35 Hz - 16KHZ
• Sensitivity: - 40 dB ± 2 dB
• Power supply  : DC3V / DC 48V phantom 
• Pickup distance: 20 - 50 cm