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User Manual for Neumann BCM-104 - Large Diaphragm Condenser Broadcast Microphone Click to enlarge the picture
Contents of the user manual for the Neumann BCM-104 - Large Diaphragm Condenser
- Product category: Large Diaphragm Condenser Neumann
- Brand: Neumann
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Neumann Large Diaphragm Condenser
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User manual for the Neumann BCM-104 - Large Diaphragm Condenser contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Neumann product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Neumann user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Neumann product will considerably shorten its lifespan!
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Product description The BCM-104 Large Diaphragm Condenser Broadcast Microphone from Neumann features a large-diaphragm, cardioid condenser capsule. It has a frequency response that is flat up to 3 kHz and then gradually boosted in the higher frequencies. If required, internal switches can be used to compensate for the proximity effect and to reduce the sensitivity by 14 dB.
The microphone headgrille twists off for quick cleaning. In front of the capsule, mounted on a frame holder, a fine gauze serves as a built-in popscreen. The microphone has an elastic mount against structure-borne noise, that is compatible with standard broadcast-segment microphone arms.
The microphone headgrille houses the K 04 large-diaphragm capsule, which has a flat frequency response up to 3 kHz. Higher frequencies have an increased presence up to 2 dB. Since the above-mentioned microphone characteristics are obtained without the use of resonance effects, the microphone features excellent transient response and transmits all transient phenomena of music and speech without any coloration.
A pop screen not only prevents the occurrence of plosive pop noises in vocal recordings, but also efficiently prevents unwanted particles, from respiratory moisture, nicotine, to food remnants, from settling on the diaphragm. The pop screen can be removed for cleaning without the use of tools.
Instead of a transformer to couple the microphone output to the supply voltage, the BCM-104 has an electronic circuit which, like a transformer, provides for good common mode rejection. Interference induced in the balanced modulation line is thus suppressed effectively. With a very low self-noise of 7 dB(A), and an overload capability extending to 138 dB SPL, the BCM-104 has a dynamic range of 131 dB (A-weighted).
The BCM-104 amplifier has a linear operation down to 20 Hz. An active filter efficiently suppresses signals below this frequency. In order to compensate for the proximity effect, an electronic high-pass filter, activated by a switch, is built into the microphone. This filter reduces frequencies below 100 Hz by 12 dB/octave. A 14 dB pre-attenuation switch is provided in order to adjust the sensitivity, if necessary, to circuits designed for dynamic microphones. But this will increase the self-noise accordingly. Both switches are located inside the microphone housing, since they will normally be operated only once, when the broadcasting facility is set up.
The preferred mode of operation is to suspend the BCM-104 from a standard studio boom arm. A thread adapter to fit different connector threads is included. In order to provide protection from structure-borne noise, both the capsule and the microphone in its mount are elastically suspended. - Large-diaphragm condenser capsule
- Cardioid directional characteristic
- Integrated pop protection and elastic suspension
- Mechanical compatibility with standard studio boom arms
- High-pass and pre-attenuation internal switches
UPC: 615104084834 In the Box Neumann BCM-104 - Large Diaphragm Condenser Broadcast Microphone Limited 2-Year Warranty Table of Contents
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Technical parametersNeumann BCM-104 Specs | | | Operating Principle | Pressure Gradient | | Transducer | Condenser | | Polar Pattern | Cardioid | | Frequency Range | 20 Hz to 20 kHz | | Signal to Noise Ratio | 76 dB CCIR
87 dB A-Weighted | | Maximum SPL | 138 dB SPL
152 dB SPL 152 dB: with pre-attenuation | | Pad | -14 dB | | THD | 0.5% | | Impedance | 50 Ohms | | Load Impedance | 1000 Ohms | | Sensitivity | 22 mV/Pa at 1 kHz into 1 kOhms | | | | Output Connectors | 1 x 3-Pin XLR | | Operating Current Consumption | 3.2 mA | | Operating Voltage | 48 V ± 4 V | | Length | 3.35" / 85 mm | | Diameter | 2.5" / 63.50 mm | | Weight | 1.10 lb / 500 g |
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