Behringer B-2 Pro User manual

STUDIO CONDENSER MICROPHONE B-2 PRO
Version 1.0 September 2002
www.behringer.com
Users Manual
ENGLISH

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STUDIO CONDENSER MICROPHONE B-2 PRO
1. SAFETY PRECAUTIONS
Detailed safety precautions:
Please read all safety precautions and operating instructions before you attempt to operate the
unit. Keep all safety precautions and operating instructions for future reference.
Water and moisture:
Condenser microphones are extremely moisture-sensitive. Never use your microphone in close
proximity to water (e.g. bath-tubs, wash-basins, sinks, washing machines, pools, etc.). When
doing voice recordings, always use the enclosed popscreen to safely protect the capsule from
moisture.
Power supply:
Always use the power supply specified in the operating instructions.
Damage:
Take care not to drop your microphone as this can lead to severe damage. BEHRINGER assumes
no liability for any damage caused by the user.
Maintenance and care:
When the microphone is not in use, please take it out from its elastic suspension, clean it with a soft
cloth, and then place it in its case. Place the bag containing moisture-absorbing crystals close to the
microphone head.
Caution:
Never dismount the screen holding the capsule, as this can damage the microphone! Never try to
modify the printed circuit board inside your B-2 PRO! This can lead to microphone damage that
cannot be repaired. Any such attempt will void the warranty.
2. POWER SUPPLY
Your condenser mic B-2 PRO needs a +48 V phantom power supply. BEHRINGER assumes no
liability for any damage caused by a defective phantom power supply. Always mute the sound
reinforcement system before you switch on the phantom power supply. After power-up, the
B-2 PRO needs about 6 seconds to stabilize.
3. DIRECTIVITY
With the switch on the front, you can set your B-2 PRO to provide a cardioid, omnidirectional or
figure eight directivity pattern. If the microphone is used to pick up both the signal source and
ambient signals, we recommend to use an omnidirectional directivity (switch position: left). However,
to pick up specific instruments or voices, please set the switch to the cardioid position (right). The
figure eight directivity pattern (center) is recommended, for example, for choir miking. Thanks to the
figure eight directivity pattern, your B-2 PRO picks up more ambient signals than when it is set to the
omnidirectional directivity.
4. LOW-CUT FILTER AND LEVEL ATTENUATION
The low-cut filter can be activated with the left switch on the rear, in order to filter low-frequency
interference such as pop sounds, etc. With the low-cut filter on, the B-2 PRO provides an almost
linear frequency response with signals picked up at close proximity to the source. The built-in
shielding minimizes the microphones sensitivity to high-frequency interference.
Use the right switch on the rear to activate the -10 dB level attenuator, which should be used with
pulse-type signal sources producing high sound pressure levels (e.g. kick drum).
1. SAFETY PRECAUTIONS

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STUDIO CONDENSER MICROPHONE B-2 PRO
. MOUNTING MICROPHONE AND ELASTIC SUSPENSION
5. MOUNTING MICROPHONE AND ELASTIC SUSPENSION
Attach the enclosed elastic suspension to the microphone stand. Fasten the screw, once the
suspension has been positioned properly. Open the elastic suspension by pressing the two
circular levers, then insert the B-2 PRO from above.
6. AUDIO CONNECTION
Use a balanced XLR microphone cable with the following pin assignment: pin 1 = shielding;
pin 2 = +; pin 3 = -. Since your B-2 PRO features gold-plated contact points throughout, we
recommend that you use only microphone cables with gold-plated connectors.
7. LEVEL SETTING / AD USTING THE BASIC SOUND
Adjust the gain control in the microphone channel of your mixing console so that the peak LED lights
up only occasionally or never at all. The EQ controls in the microphone channel should be set to mid-
travel position to start with; low-cut filter and level attenuator should be off. Try to achieve the
desired sound by experimenting with the microphone position. Use the omnidirectional, cardioid
and figure eight directivity patterns (see chapter 3). Often, it will be useful to set up acoustic
barriers (gobos) at various angles towards the signal source. Only when the desired basic
sound has been achieved, should you start to use equalizers and signal processors, if any at all
(Remember: less is often more!)
The B-2 PRO provides a level peak around 12 kHz producing some kind of presence in this range;
so, there is no need for high-frequency EQing which could deteriorate the signal and raise the
overall noise floor. On the contrary, the B-2 PRO provides that much-desired transparency which
often gets lost during recording and mixing.
8. WARRANTY
+Please find our current warranty terms on our web site under http://www.behringer.com
or send us a request by e-mail [email protected]), fax [phone]), or
telephone [phone]).
9. SPECIFICATIONS
Transducer type: condenser, 1" dual-diaphragm
Operating principle: pressure gradient
Polar pattern: cardioid, omnidirectional or figure eight
Connection: gold-plated balanced XLR connector
Open circuit sensitivity (at 1 kHz): cardioid: -36 dBV (0 dBV = 1 V/Pa), 16 mV/Pa
omnidirectional: -37 dBV (0 dBV = 1 V/Pa), 14 mV/Pa
figure eight: -3 dBV (0 dBV = 1 V/Pa), 18 mV/Pa
Frequency response: 20 Hz - 20 kHz
Level attenuation: -10 dB (switchable)
Low-Cut filter: 6 dB/oct. at 1 0 Hz (switchable)
Max. SPL (1% THD @ 1 kHz): cardioid: 138 dB (0 dB), 148 dB (-10 dB)
omnidirectional: 139 dB (0 dB), 149 dB (-10 dB)
figure eight: 137 dB (0 dB), 147 dB (-10 dB)
Equivalent SPL (IEC 6 1): 17 dB-A (cardioid) / 18 dB-A (omnidirectional) /
16 dB-A (figure eight)
Signal-to-noise ratio: 77 dB, A-weighted (cardioid) / 76 dB, A-weighted
(omnidirectional) / 78 dB, A-weighted (figure eight)
Nominal impedance: <100 Ω
Load impedance: >1 kΩ
Supply voltage: +48 V
Supply current: 3 mA
Dimensions: ∅ head: 6 mm, ∅ shaft: 0 mm, length: 210 mm
Weight: approx. 0. kg

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STUDIO CONDENSER MICROPHONE B-2 PRO
Polar pattern (cardioid) Frequency response (cardioid)
Polar pattern (omnidirectional) Frequency response (omnidirectional)
Polar pattern (figure eight) Frequency response (figure eight)
BEHRINGER is constantly striving to maintain the highest professional standards. As a result of these efforts, modifications may be made from
time to time to e isting products without prior notice. Specifications and appearance may differ from those listed or illustrated.
9. SPECIFICATIONS