Phantomspeisung bei unsymmetrischen Verstrkereingngen

Technische Daten

Arbeitsweise: Richtcharakteristik: Leerlauf-bertragungsfaktor bei 1000 Hz: bertragungsbereich: Kondensatormikrofon nach Druckgradientenprinzip Niere

Reinigungshinweise

Alle Metalloberflchen knnen von Zeit zu Zeit problemlos mit (Industrie-) Spiritus oder Alkohol gereinigt werden.

Mitgeliefertes Zubehr

H 100 Elastische Spinnenhalterung

Empfohlenes Zubehr

B 18 MK 9/10 N 62E N 66E PF 100 SA 41/1 ST 102A ST 200 W 4000 Batteriespeisegert 10 m NF-Kabel mit XLR-3 Anschlusssteckern Netzgert zum Betrieb von zwei Mikrofonen Netzgert zum Betrieb von sechs Mikrofonen Studio-Popschutzfilter Stativadapter Bodenstativ schweres Bodenstativ Auenwindschutz (beim C 4000 B beigepackt)
20 mV/Pa 43 - dBV 30 bis 20.000 Hz (siehe Frequenzkurve) Elektrische Impedanz: 200 Ohm Empfohlene Lastimpedanz: 1.000 Ohm Steilheit des Bassabschwchungs- 6 dB/Oktave mit Einsatzpunkt bei Filters: 500 Hz Vorabschwchung: schaltbar auf -10 dB Ersatzgeruschpegel nach DIN (CCIR 468-2): 30 dB quivalentschalldruckpegel nach DIN (A-bew.): 20 dB-A Geruschpegelabstand bez. auf 1 Pa (A-bew.): 74 dB*) Grenzschalldruck fr k = 0,5% (0/-10 dB): 200 / 630 Pa 051 / 041 dB SPL*) Dynamikbereich: 120 dB (A-bew.)*) Zulssige klimatische Verhltnisse: - Temperaturbereich: -10C bis +60C - Relat. Luftfeuchte: 90% (+20C), 85% (+60C) Speisespannung: 9 bis 52 Volt Phantomspeisung nach DIN / IEC 268-15 Stromaufnahme: 2 mA Steckerbeschaltung: XLR-3 Type nach IEC ussere Abmessungen: max. 53 x 159 mm Gewicht: 325 g, netto *) Diese Werte gelten fr 48-Volt Phantomspeisung und sind um 3 dB fr 24-Volt, bzw. um 6 dB fr 12-Volt Phantomspeisung zu reduzieren. Dieses Produkt entspricht den Normen EN 50 082-1 und EN 60 065.
Frequenzkurve Polardiagramm

Description

This condenser microphone has been designed on the basis of experience AKG and its customers have gained worldwide over the last decades using models such as the C 414 B. C 3000, and C 1000 S. The C 2000 B uses advanced, reliable components to meet the highest professional demands and withstand even long-time, tough handling in the studio and on stage. The C 2000 B provides the following features: The transducer capsule has been acoustically designed with a cardioid polar pattern to make the microphone suitable for use both in the recording studio and on stage. The diaphragm is made of a plastic foil that is gold-sputtered on one side to prevent local shorts to the back electrode even at extremely high sound pressure levels. A switchable preattenuation pad allows you to increase the maximum SPL capability of your C 2000 B by 10 dB for distortion-free close-in recordings. Many mixing console input stages use small transformers that are susceptible to overload, particularly at low frequencies. The C 2000Bs pad prevents such overload. A bass cut filter that is switchable on the microphone body reduces lowend distortion due to uncontrolled rumble or wind noise even further. Also, you can eliminate the proximity effect (occurring at working distances of less than 4 inches) inherent in unidirectional microphones by switching the bass cut filter in. The filter has a 6 dB/octave slope starting at 500 Hz. The all-metal die-cast body shields the microphone very effectively against RF interference when using it near radio transmitters or together with wireless microphones or other communication systems and protects the microphone from the hardships of live use. The built-in pop screen is ideal for vocal use.

An internal spider-type shock mount for the transducer effectively suppresses handling and cable noise. A safety flange on the connector shaft prevents the microphone from falling out of the spider suspension or stand adapter even when mounted upside down. With its high SPL capability, minimum distortion, and resistance to extreme temperatures and high humidity, the C 2000B is a truly universal microphone. Although the microphone capsule is shock mounted internally, you can use the supplied H 100 spider suspension to reduce vibrational noise from the stand or other sources even further. Remember to insert the cable into one of the two grooves at the rear end of the outer ring for strain relief. This removes mechanical pull from the connector and reduces vibrational noise that may be transmitted to the microphone by the cable.

Applications

Its capsule design and pickup pattern make the C 2000 B a perfect choice for many applications both in the studio and on stage. Although the list below is far from complete, it is a good starting point for making excellent recordings. Please note that each instrument has its own distinct projection pattern and the quality of the recorded sound ultimately depends on how you place the microphone. You will therefore need to experiment to find the optimum microphone placement for each instrument. Recommended Applications Preferred Backing vocals Acoustic guitar Zither Horn Saxophone Flute Harmonica congas Bongos Snare drum Cymbals Hi-hat Trumpet Recommended Solo vocals Upright piano Grand piano (rock & jazz) Violin Cello Clarinet Tom-toms
Adding Phantom Power to Balanced Input Stages Input transformer with center tap (floating):
Input transformer with no center tap (floating):
Standard values for Rv or 2 x Rv: Vs 12 V 2 V 24 V 4 V 48 V 4 V Rv 330 ohms 680 ohms 3300 ohms 2 x Rv 680 ohms 1200 ohms 6800 ohms
In order to preserve symmetry, use 2 x Rv resistors with a maximum tolerance of 0.5% only.

Powering

The C 2000 B operates on any phantom power source to DIN / IEC 268-15. This standard specifies a positive voltage of 12, 24, or 48 VDC on the two audio lines referenced to the cable shield. Alternatively, you can operate the microphone on any DC voltage between 9 and 52 V fed to the microphone via standard phantom power wiring.
If the amplifier inputs are single-ended (grounded) or have no input transformers, wire either capacitors or optional transformers into the audio lines to prevent any current leakage into the input stage.
Adding Phantom Power to Unbalanced Amplifier Inputs

Specifications

Type: Polar patterns: Sensitivity at 1000 Hz: Frequency range: condenser pressure gradient microphone cardioid 20 mV/Pa 43 - dBV 30 to 20,000 Hz (refer to frequency response curve) 200 ohms 1000 ohms 6 dB/octave below 500 Hz -10 dB, switchable

C 2000 B

Stage and Studio Condenser Microphone Description
The C 2000 B is a versatile, side-address cardioid condenser microphone intended for professional and home studio applications as well as on-stage activities. It consists of a patent pending one-half inch capsule element which is placed in a larger baffle ring. This measure gives the C 2000 B more forward directionality at high frequencies. The microphones response is tailored to have a broad on-axis rise at high frequencies, while maintaining a fairly uniform diffuse field over the entire frequency band. The added presence at very high frequencies is an asset in many micing situations, especially home recording studios, while maintaining good feedback rejection in live sound applications. Its 0.5% THD point of 140 dB (150 dB with the integral 10-dB pad engaged) and high sensitivity of 20 mV/Pa indicate that this model can deliver maximum operating output signals in the range of 4 volts. The self-noise floor is 20 dB (A), giving the microphone an effective dynamic range of 120 dB. An integral bass cut switch provides a gentle 6 dB per octave roll-off below 500 Hz, and as such will compensate for the proximity effect (low frequency boost) associated with close micing. The cardioid polar pattern, has been refined to give maximum rejection across the frequency band at 180 degrees. Internal shock mounting of the diaphragm assembly makes this model studio friendly and easy to use in demanding live performances. The SA41/1 stand adapter is included. Optional accessories include the B18E battery supply unit and the H 100 external elastic shock suspension.

Specifications

Transducer type: Frequency response: Sensitivity at 1 kHz: Polar pattern: Pre-attenuation: Bass cut filter: Impedance: Prepolarized condenser 30 Hz to 20 kHz 20 mV/Pa (-34 dBV) Cardioid 10 dB 6 dB/octave below 500 Hz 200 ohms

Features

Wide dynamic range of 120 dB Transformerless output for ultra low LF distortion Frequency response shaped for studio applications and highest gain before feedback Pre-attenuation (-10 dB) Bass roll-off provided (6dB/octave below 500Hz) Dedicated cardioid polar pattern
Recommended loading: >1000 ohms Equivalent noise level (A-weighted): 20 dB Sound pressure level for 0.5% THD: 140 dB (150 dB with 10 dB pre-attenuation) S/N ratio (A-weighted): 74 dB Power requirement: Output connector: Finish: Size: Net/shipping weight: Included accessories: Optional accessories: Phantom powering, 9 to 52 Vdc 3-pin XLR-M champagne 2.1 in. diameter (53 mm); 6.3 in. length (159 mm) 11.5 oz. (325 g)/2.1 lb. (950 g) SA 41 stand mount B 18 E battery power supply H 100 elastic shock suspension Current consumption: <2 mA
Architects and Engineers Specifications
The microphone shall be a 0.5-inch diameter condenser model with a single dedicated cardioid pickup pattern. The microphones sensitivity shall be no less than 20 mV/Pa. The microphones equivalent noise level shall be no greater than 20-dB (A), and at an operating level of 140 dB the microphones total harmonic distortion shall be no greater than 0.5%. The microphone shall include a pre-attenuation switch of 10-dB and a bass roll-off switch of 6 dB per octave commencing at 500 Hz. The microphone shall operate with phantom power over the range from 9 Vdc to 52 Vdc. The microphone shall have a diameter no greater than 2.1 in. (53 mm) and a length no greater than 6.3 in. (159 mm). The net weight of the microphone shall be no greater than 11.5 oz. The microphone shall be the AKG Acoustics Model C 2000 B.

Graphical Data

2.1 in. diameter
AKG is constantly improving and modifying its products, therefore, specifications are subject to change without notice.

6.3 in. length

Limited Warranty
Valid only in the United States. AKG Acoustics warrants AKG products against defects in material or workmanship for a period of three years from the date of original purchase for use, and agrees to repair or, at our option, replace any defective unit without charge for either parts or labor. Important: This warranty does not cover damage resulting from accident, misuse or abuse, lack of reasonable care, the affixing of any attachment not provided with the product, loss of parts or connecting the product to any but the specified receptacles. This warranty is void unless service or repairs are performed by an authorized service center. No responsibility is assumed for any
special, incidental or consequential damages. However, the limitation of any right or remedy shall not be effective where such is prohibited or restricted by law. Simply take or ship your AKG product prepaid to our service department. Be sure to include your sales slip as proof of purchase date. (We will not repair transit damage under the no-charge terms of this warranty.) Note: No other warranty, written or oral is authorized by AKG Acoustics, Inc. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages or limitation on how long an implied warranty lasts, so the above exclusions and limitation may not apply to you.
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AKG Acoustics GmbH Lembckgasse 2125, P.O.B. 158, A-1230 Vienna/AUSTRIA Tel: (43 1) 86 654-0*, Fax: (43 1) 86 654-516 Internet: http://www.akg.com AKG Acoustics; A Division of Harman Pro Germany Bodenseestrae 228, D-81243 Mnchen/GERMANY Tel: (089) 87 16-0, Fax: (089) 87 16-200 Arbiter Pro Audio Wilberforce Road, London NW9 6AX/ENGLAND Tel: (0181) 202 1199, Fax: (0181) Specifications subject to change without notice. AKG ACOUSTICS, U.S. 914 Airpark Center Drive Nashville, TN 37217, U.S.A. Tel: (615) 620-3800, Fax: (615) 620-3875 Studer Japan Ltd. 2-43-7, Uehara, Shibuya-ku, Tokyo 151-0064/JAPAN Tel: (813) 3465-2211, Fax: (813) 3465-2214 Erikson Pro Audio 620 McCaffrey, St-Laurent, Quebec, H4T 1N1, CANADA Tel: (514) 738-3000, Fax: (514) 737-5069 Internet: www.jam-ind.com/eriksonpro