广播话筒

BCM 104

诺音曼先进的广播话筒

专为电台播音员设计的广播话筒
全新电容话筒极头，专为语音优化
集成了防喷网和弹性减震振架

BCM 104

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适合于:

Max. SPL

152 dB

S/N Ratio

87 dB

Sensitivity

22 mV/Pa

产品描述

给予听众最佳的收听效果

Dealer Description

您的声音—世界倾听

相对于录音室录音，广播以更直接的方式接触听众。正因如此，诺音曼决定研发一款话筒，用于满足某些特定人群的需求和工作条件，这些人每天通过自己的故事、独特的魅力和最新的资讯影响着我们，诸如电台DJ、播音员、新闻广播员、谈话类节目主播等。

BCM 104旨在完美地传达声音中的情感。其外形为满足电台播出需要，经过专门的优化，可用于标准的电台话筒吊臂。由于其弹性安装座，BCM 104可以很好地阻止结构噪声。话筒罩网后面集成的防喷网可以保护话筒头免受播音员喷口或爆破音的影响。为了保证清洁卫生，话筒罩网采取可方便拆卸的设计，以便于快速清洁。

BCM 104的大振膜电容话筒头可以捕捉您声音的每个细微差别，且不会产生渲染和不必要的失真。BCM 104的电子电路具有仅为7 dB-A的极低本底噪声，并可以处理高达138 dB的极大声压级，而且不会失真。其无变压器平衡输出，可确保最小的交流声干扰，并对诸如来自电脑屏幕的外来信号由高共模抑制。次声波滤波器可以抑制20 Hz以下的频率。对于近距离讲话，可选的100 Hz低切开关可以补偿近讲效应。另一个开关可以激活14 dB的预衰减，以减少BCM 104的输出声压级，从而用于为专业动圈话筒设计的设备（动圈话筒的灵敏度通常比电容话筒的灵敏度低得多）。两个开关都隐藏在话筒内，因为通常仅在设置时才需要选择低切和预衰减。

专为人声而设计

BCM 104具有固定的心形模式，可以很好地抑制后方串扰。其频率响应高度线性，在4 kHz左右具有轻微的临场感提升，在10 kHz以上具有轻微的高频提升，从而提高语音清晰度。由于其出色的瞬态响应，BCM 104能够以惊人的细节捕捉人声的每个细微差别。其宽广的频率响应可将BCM 104用于更多的语音应用，如演唱和各种乐器。

功能优化设计
专门设计的大振膜电容话筒头
稳定的心形指向模式
集成防喷网和防震支架
话筒罩网采取可方便拆卸的设计，以便于快速清洁
内部预衰减和低切开关

诺音曼BCM系列还提供动圈话筒BCM 705可供选择。

数据和图表

Acoustical operating principle	Pressure gradient transducer
Directional Pattern	Cardioid
Frequency Range	20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm	22 mV/Pa = –33.1 dBV ± 1 dB
Sensitivity at –14 dB attenuation	4.4 mV/Pa
Rated Impedance	50 ohms
Rated load impedance	1 kohms
Equivalent noise level, CCIR¹⁾	18 dB
Equivalent noise level, A-weighted¹⁾	7 dB-A
Maximum SPL for THD 0.5%²⁾	138 dB
Maximum SPL for THD 0.5% with preattenuation²⁾	152 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL)¹⁾	76 dB
Signal-to-noise ratio, A-weighted (re. 94 dB SPL)¹⁾	87 dB
Maximum output voltage	10 dBu
Supply voltage (P48, IEC 61938)	48 V ± 4 V
Current consumption (P48, IEC 61938)	3.2 mA
Matching connector	XLR 3 F
Weight	500 g
Diameter	64 mm
Length	85 mm
Height	110 mm (without suspension)

1) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS

2) measured as equivalent el. input signal

Diagrams

Cardioid BCM 104

配件

PS 15

Popscreen

PS 20 a

Popscreen

WS 47

Windscreen

N 248

Power Supply

SG 5

Swivel Joint

IC 3 mt

Microphone Cable

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订单信息

BCM 104

Color nickel

CAT. NO. 008483

BCM 104 microphone

选择其他产品

适合于:

Max. SPL

152 dB

S/N Ratio

87 dB

Sensitivity

22 mV/Pa

评价

"... since the quality of the BCM 104 is optimal for broadcast speaking applications. This applies not only to the sound characteristics, but also to the overall handling features, with the replaceable headgrille, pop protection and hidden switches for the preattenuation and high-pass filter."
Production Partner, September 2003

"In addition to looking the part of a 21st-century mic, the BCM´s impressive specs and sound should please any discerning audio pro."
MIX Magazine, August 2004

BCM 104 review on bonedo.de, German, January 2019
Bonedo
LINK

"There´s no doubt that the Neumann BCM 104 made a big impression - as you would expect from a very well engineered package - the built-in mount is a really great idea - and the sound is very, very good."
Audio Media, March 2004