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SCM-810 / 舒尔 SHURE 8 通道话筒混音器    类别:话筒混音、集线、移频器


 
SCM-810 / 舒尔 SHURE 8 通道话筒混音器  
舒尔 SHURE

货    号:
A134B4428Z
型    号:
SCM-810
品    牌:
舒尔 SHURE
市 场 价:
17,000.00
销 售 价:
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订购热线:
寄送费用:
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由购买者支付
保修条款:
提供原厂保修条件
上架时间:
2002-01-01
最后更新:
2012-05-10

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详细介绍:



自动混音中领域的公认标准。一种适用于小组讨论和会议的录音和扩音的完美解决方案。

这种 8 通道自动混音器具有已获得专利的舒尔 IntelliMix,这种功能仅在话筒处于工作状态时才会被激活,可以尽可能避免多个开启话筒导致的音质下降。SCM810 专为固定式音频系统而设计。

特点包括:每个通道可调整的 EQ,48 V 幻象电源,活动均衡话筒(或线路)电平输入,线路电平输出,抗射频干扰的高性能底板和电路,对话筒激活的完全逻辑控制,最多可连接 400 个话筒的功能,且具有内部电源。120/230 Vac 电源。

8 个平衡话筒线路输入通道(Phoenix 模块化接头)

一个非平衡 1/4 英寸辅助输入电平控制

8 个非平衡 1/4 英寸直接线路电平输出

一个非平衡主线路/话筒电平输出(Phoenix 模块化接头)

每个通道均可使用 48V 幻象电源

可选电平的峰值输出限幅器

全机架宽度(单个机架高度)

测量条件(除非另有说明):

线路电压为 120 Vac,60 Hz (SCM810) 或 230 Vac,50 Hz (SCM810E);全增益;1 kHz,一个活动通道;源阻抗:话筒为 150 欧姆,线路为 150 欧姆,终端为:线路 10 千欧、耳机 300 欧姆(尖-套和环-套)、直接输出 10 千欧;自动模式、已针对平坦响应进行均衡控制调整

频率响应(参考 1 kHz、以通道控制为中心)

50 Hz 至 20 kHz +/- 2 dB;25 Hz 时 -3 dB 转角

电压增益(通常、控制为顺时针满旋)

输入 输出

线路 耳机 直接输出

低阻抗

话筒(150欧姆) 80 dB 88 dB 34 dB

线路 40 dB 48 dB -6 dB

辅助 44 dB 52 dB --

发送/返回 20 dB 28 dB --

输入

输入 阻抗 输入

限幅电平

设计

适合与以下设备配合使用: 有效

通常

话筒 19-600 欧姆 1.6 千欧 -15 dBV

线路 <2 千欧 10 千欧 +22 dBV

辅助 <2 千欧 10 千欧 +22 dBV

发送/返回 <2 千欧 10 千欧 +18 dBV

输出

输出 阻抗 输出

限幅电平

设计

适合与以下设备配合使用: 有效

通常

线路 >600 欧姆 60 欧姆 +18 dBV

耳机 8-200 欧姆

60 欧姆

建议 300 欧姆 +12 dBV

直接输出 >2 千欧 1 千欧 +18 dBV

发送/返回 >2 千欧 1 千欧 +18 dBV

总谐波失真

<0.1%,+18 dBV 输出电平,50 Hz 至 20 kHz(20 Hz 至 20 kHz 滤波器;输入为 1 且主旋钮位于 5,其它所有控制旋钮逆时针满旋)

交流声和噪声

等效输入噪声:-125 dBV(150 欧姆源;400 Hz 至 20 kHz 滤波器)

等效输入交流声和噪声:-123 dBV(150 欧姆源;20 Hz 至 20 kHz 滤波器)

输出交流声和噪声(20 Hz 至 20 kHz 滤波器;通道控制旋钮逆时针满旋)

主旋钮逆时针满旋:-90 dBV

主旋钮顺时针满旋:-70 dBV

共模抑制

· 1 kHz 时为 70 dB

极性

话筒/线路,发送输入到所有输出为非反向;辅助输入到所有输出为反向

输入通道激活

起始时间:4 ms

保持时间:0.4 s(可调至 1.0 s)

衰减时间:0.5 秒

衰减

15 dB(可调至无穷大)

过载保护和短路保护

短路输出、即便时间较长、不会造成损坏。话筒最高可承受 3 V 的信号,线路和监听输入最高可承受 20 V 的信号

均衡

低频:降低 6 dB/倍频程,转角可调范围为 25 至 320 Hz

高频:5 kHz 时为 +/- 6 dB、10 kHz 时为 +/- 8 dB、坡形处理

限幅器

类型:峰

阈值:可调:衰减,+4,+8,+16(dBm,输出)

起始时间:2 ms

恢复时间:300 ms

指示灯:在开始限幅时发出红光

输入 LED

通道激活时为绿色,在限幅 6 dB 以下时为红色

幻象电源

通过 6.8 千欧串联电阻的开路电压为 46 Vdc(按照 DIN 45 596)

工作电压

SCM810:120 Vac 额定电压(请参阅用户指南的 230 Vac 运行的电压选择),50/60 Hz,200 mA

SCM810E:230 Vac 额定电压(请参阅用户指南的 用户指南中的 120 Vac 运行),50/60 Hz,100 mA

温度范围

使用温度:0 至 60 摄氏度(32 至 140 华氏度)

存放温度:-30 至 70 摄氏度(-20 至 165 华氏度)

外形尺寸

44.5 mm(高)x 483 mm(宽)x 317 mm(深)(13/4 x 19 x 121/2 英寸)

净重

4.3 kg(9 磅 9 盎司)



The SCM810 8 Channel Microphone Mixer features Shure's patented IntelliMix technology, which activates only microphones being addressed, minimizing poor audio caused by multiple open microphones. The rack mountable SCM810 is designed specifically for installed sound applications such as conference facilities, houses of worship, governmental institutions, schools, etc.

Other features of the SCM810 mixer include adjustable EQ per channel, 48 V phantom power, active balanced microphone - or line-level inputs, line-level outputs, highly RF resistant chassis and circuitry, complete logic control of microphone activation, linking capacity for up to 400 microphones, with an internal power supply. 120/230 Vac power.

Shure SCM810 8-Channel Automatic Microphone Mixer Specifications:

· Frequency Response (Ref .1 kHz, channel controls centered): 50 Hz to 20 kHz

· 2 dB; -3 dB corner at 25 Hz

· Total Harmonic Distortion: <0.1% at +18 dBV output level, 50 Hz to 20 kHz (through 20 Hz-20 kHz filter; Input 1 and Master at 5, all other controls full counterclockwise)

· Hum and Noise: Equivalent Input Noise: -125 dBV (150 Ω source; through 400 Hz_20 kHz filter); Equivalent Input Hum and Noise: -123 dBV (150 Ω source; through 20 Hz - 20 kHz filter); Output Hum and Noise (through 20 Hz to 20 kHz filter; channel controls full counterclockwise): Master full counterclockwise: -90 dBV; Master full clockwise: -70 dBV

· Common Mode Rejection: >70 dB at 1 kHz

· Polarity: Mic/Line, Send inputs to all outputs are non-inverting; Aux input to all outputs is inverting

· Input Channel Activation: Attack Time: 4 ms; Hold Time: 0.4 s (switchable to 1.0 s); Decay Time: 0.5 s

· Off-Attenuation: 15 dB (switchable to infinity)

· Overload and Shorting Protection: Shorting outputs, even for prolonged periods, causes no damage. Microphone inputs are not damaged by signals up to 3 V; Line and Monitor inputs by signals up to 20 V

· Equalization: Low-frequency: 6 dB/octave cut, adjustable corner from 25 to 320 Hz; High-frequency: +/- 6 dB at 5 kHz, +/- 8 dB at 10 kHz, shelving

· Limiter (Peak): Threshold: Switchable: off, +4, +8, +16 (dBm at output); Attack Time: 2 ms; Recovery Time: 300 ms; Indicator: Lights red when limiting occurs

· Input LEDs: Green on channel activation, red at 6 dB below clipping

· Phantom Power: 46 Vdc open-circuit through 6.8 kilΩ series resistance per DIN 45 596

· Operating Voltage: 120 Vac rated nominal (see Voltage Selection for 230 Vac operation in User Guide), 50/60 Hz, 200 mA

· Temperature Range: Operating: 0 degrees to 60 degrees C (32 degrees to 140 degrees F ); Storage: -30 degrees to 70 degrees C (-22 degrees to 158 degrees F)

· Overall Dimensions (H x W x D): 1-3/4 x 19 x 12-1/2 in (44.5 x 483 x 317 mm)

· Net Weight: 9 lb. 9 oz. (4.3 kg)

Shure SCM810 8-Channel Automatic Microphone Mixer Features:

· Fast, noise-free microphone selection, which automatically adjusts to changes in background noise

· Increases the clarity and intelligibility of speech

· Dramatically reduces feedback, reverberation, and comb filtering

· Automates several rigorous operator functions. Minimizes set up time - plug and play

· Frees up channels on the mixing console

· IntelliMix- the most advanced and effective automatic mixing algorithm available, incorporating Noise Adaptive Threshold, MaxBus , Last Mic Lock-On

· NOMA (Number of Open Mics Attenuated) - automatic gain adjustment as additional microphones are activated

· Eight balanced mic-line input channels (Phoenix block connectors)

· One unbalanced 1/4" aux level input

· Eight unbalanced 1/4" direct line level outputs

· One balanced master line level output (Phoenix block connector)

· Selectable 48V phantom power per channel

· Level selectable peak output limiter

· Full rack width (single rack height)