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MPress 2通道话筒放大混合及模拟信号分配器
应用特点
u 无源设计，音频线路信号分配器
u 用于音频系统和新闻记者录制设备信号的分配
u 前后面板 2x2 通道话筒输入，2 通道线路信号主输出
u 2 个话筒信号电平控制旋钮，带 48V 幻象供电
u 主输出电平控制旋钮
u 耳机监听输出插口和耳机电平控制旋钮
u 8 通道线路电平平衡输出，2 莲花、2x1/4 大二芯输出
u 所有输出带隔离变压器
u 带 2 个限幅信号处理旋钮和信号指示
u 内置 1KHz 测试信号发生器
u 可支持模块化 Exo-Pod 连接，高达 448 路输出
u 军用级 14 规格钢材焊接制，使电路板不会发生扭转
技术参数
u 频率响应：20Hz 至>20KHz 的+0/-1.5dB
u 话筒增益：-70dBu/-54dBu/-42dBu
u 总谐波失真：<0.001％@+4dB
u 动态范围：>112dB
u 输入阻抗：7KΩ
u 最大增益：+51 分贝
u 噪声本底：-94dBu
u 低切滤波器：100Hz（12dB/倍频程）
u 限制器门槛：-10dBu-+5dBu
u 限制器比：>20:1
u 输出阻抗：880Ω，平衡
u 互调失真：0.002%
u 尺寸： 482x152x44.5（mm）
u 重量：2.8Kg
MPress Broadcast Press Box
Press Box & Signal Splitter
The mPress is a modular & expandable press box that distributes audio to multiple destinations simultaneously, with two on-board microphone preamps and additional controls that eliminate the need for a separate mixer when feeding both a PA and a press gallery.
Press box & splitter with expandable outputs
Dual mic preamps with on-board limiter
Program inputs for background music playback
Built-in test tone for easy calibration & troubleshooting
Audio distribution & control for small or large events
The mPress provides full control over any size of press gathering, from community gatherings to international events, and its modular design means it can grow to suit your needs. It features two balanced mic or line inputs with low-noise preamps and high-pass filters, along with a shared limiter to avoid clipping the inputs of any connected recording devices. Separate outputs are provided for a set of powered speakers, with dedicated program inputs that allow you to play background music through the PA when on standby, and a headphone output to silently monitor and cue up playback tracks. The main outputs are controlled separately from the press gallery signals, so you can make adjustments on the fly without affecting previously calibrated recording devices.
mPress Specifications
Specifications
Block Diagram
Graphs
Specifications
Audio circuit type: Low Noise Active Buffer
Frequency response: 20Hz to >20KHz +0/-1.5dB
Dynamic range: >112dB
Gain: +51dB (Microphone), 0dB (Line Input), +19dB (Program)
Clip Level: +24dBu/+17dBu (Main Output)
Total harmonic distortion: <0.001% @ +4dB
Intermodulation Distortion: 0.002% (Main Output)
Phase Deviation: ±15° (Exo-Pod Output)
Input Impedance: 7k Ω (Microphone), 22K Ω (Program)
Output Impedance: 880 Ω (Main Output), 115 Ω (Exo-Pod Output)
Equivalent Input Noise: -111dBu (Main Output)
Noise: -94dBu (Microphone), -80/-92dBu (Exo-Pod Output - Program In to Main Out)
Features
Input Connectors: 4 XLR female inputs, 6 ?" program inputs, XLR power supply input
Output Connectors: 2 XLR male gallery outputs, 2 XLR male main outputs, 6 XLR male Exo-Pod/gallery outputs, 2 ?" main outputs
Extras: Low-Cut Filter: 100Hz (12dB/Octave) (Microphone), Limiter Threshold: -10dBu to +5dBu Output (Microphone), Limiter Ratio (>20:1) (Microphone), Microphone Signal Present LED Threshold: -70dBu/-54dBu/-42dBu (Exo-Pod Output)
General
Construction: 14-gauge steel chassis & outer shell
Size (L x W x D): 19" x 7" x 1.62" (1206.5px x 445px x 103.25px)
Weight: 6.25lb (2.83kg)
Shipping size (L x W x D): 22" x 10.375" x 4.5" (1397.5px x 660px x 285px)
Shipping weight: 8.9lb (4.04kg)
Power: ±15V/+5V custom power supply
Conditions: For use in dry locations only between 5°C and 40°C
Warranty: Radial 3-year, transferable
