QQ 272121253 手机：18210951310 项目经理：武元慕
电子管技术LCA2B是两个信道单元与每个通道的一个独立的压缩器和限制器。该单元是基于所有管（除了用于电源和侧链电路）。的VCA（1双三极管）被置于变压器之间的输入和输出级（2双三极管）。该音频信号被拾取后，VCA和馈到侧链电路。从压缩机的控制信号和从限制器组合并发送到链接开关和控制放大器，该馈送的VCA。的2双向链接总线是在21/4“立体声插孔插座后面板上的访问。通道可以连接立体声应用，还联系到其他LCA2B的通过了2链接总线和一个标准的立体声插孔/插口线。
压缩机有6个ATT / REL预设以及手动控制。限制器ATT/相对是固定的。 LED显示屏是美联储从控制放大器。限幅器的LED被供给来自限制器buffer.The音频路径，从输入到输出是完全对称的。输入和输出完全浮动变压器。所有的DC电压是稳定的，当然概念的阳极电压的输出级。
独立的压缩器和限幅器：
压缩机
变比从1,6:120:1的
可变阈值：关闭至10分贝
6个预设和手动控制ATT / REL之间的选择
可变阈值：关闭到0 dBu
On / off开关
LED指示
频率响应的-3 dB：5 Hz到50 kHz
低噪音：<-85 dBu的@ 10 dB增益
输出增益控制
压缩器
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Variable ratio from 1,6:1 to 20:1
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Variable threshold: off to 10 dBu
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Selection between six presets and manual controlled att/rel
限幅器
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Variable threshold: off to 0 dBu
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On/off switch
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LED indication
其它参数
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Separate compressor and limiter
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Frequency response @ -3 dB: 5 Hz to 50 Khz
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Low noise: < -85 dBU @ 10 dB gain
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Output gain control
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Clickless bypass relay
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LED display for gain reduction
LCA2B - Technical Features
- Tube VCA compressor/limiter
- All-tube based push-pull amplifier
- Frequency response @ -3 dB: 5 Hz to 50 kHz
- Low noise: < -85 dBU @ 10 dB gain
- CMRR: > 60 dB @ 10 kHz
- Separate compressor and limiter
- Output Gain: -6 dB to +10 dB
- Interconnection of several compressors via two busses
- Clickless In/Out relay
- Conductive plastic potentiometers
- Gold plated switches
- Inputs and outputs are transformer balanced and fully floating
- Linkable for stereo applications
Compressor
- Variable ratio (1.6:1 to 20:1)
- Variable threshold (Off to -20 dBU)
- Continuously variable attack and release times
- Choice between 6 presets (Fairchild) and manual attack/release control
- LED Gain reduction display
Limiter
- Variable threshold (Off to 0 dBU)
- Attack: 0.8 ms - release: 0.5 sec
- Separate Limiter On/Off switch
- LED indication of limiter action
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