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ST-MA2 静音监听放大器
●  单监听扬声器放大器
●  会议监听扩音器
●  监测放大器,具有静音和外部驱动衰减步骤
●  快速,无声的音频切换
●  多个控制输入
●  可调整的增益
●  推荐电源 : PS24AX
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Input Impedance:
20 kΩ Balanced or Unbalanced Bridging
Input Level:
-10 dBV minimum for 2 Watts RMS output
Output Impedance : 8 Ω (will drive 4 Ω loads)
Output Power:
1.75 Watts RMS Continuous; 2 Watts RMS max.
THD+N : < 0.5%
Bandwidth : 45 Hz to 14 kHz
CMRR : > 60 dB (50 Hz to 120 Hz)
Residual Noise : < -80 dB (below 2 Watts RMS)
Switching Time : < 50 us
Attenuation (Muted):
> 90 dB (1 kHz),
> 85 dB (300 Hz to 3 kHz)
> 75 dB (20 Hz to 20 kHz)
Selectable Attenuation:
3 dB or 6 dB, each setting individually selectable using two independent inputs (connect to ground to activate, 0.3 mA)
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 200 mA for rated output (220 mA @ 2 Watts RMS)
Shipping Weight : 0.1 kg
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