MX014 Preamplifier0 pages

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gd!lBM£\ MX014

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aCOUStW instruments Microphone C-250 + preamplifier PA-14

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Applications

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• Acoustic precision measurement with

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1/2 " prepolarized microphones.

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Features

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• Robust small preamplifier

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• Excellent frequency response

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z

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LU

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o

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o

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>

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o

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X

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The MX014 is a unit comprising a preamplifier (PA-14) and mi-

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crophone (C-250) designed by CESVA technology.

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The CESVA PA-14 is a small robust preamplifier, designed to

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condition V-i prepolarized microphones as the CESVA C-250

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model. It is also compatible with other makes of microphones.

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By virtue of its wide frequency response and low noise level,

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the PA-14 is ideal for precision applications. Because of its low

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output impedance the PA-14 can be used with long cables. The

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PA-14 has high input impedance which stops the microphone

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from loading.

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The C-250 condenser microphone has been developed to sup-

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ply the sector with greatest demand for precision sound pres-

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sure measurements. The use of materials such as nickel and

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monel, and exhaustive quality control, make the C-250 a highly

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reliable microphone.

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The PA-14 preamplifier along with the C-250 prepolarised con-

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denser microphone are the perfect solution for multi channel

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systems.

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Characteristics_

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Preamplifier PA-14

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Gain (at 1 kHz):

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• Frequency response:

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• Input impedance:

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• Output impedance:

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• Power supply range:

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Current consumption:

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• Electric noise

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A weighting:

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Lin (20-20kHz):

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Connector:

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• Diameter:

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Microphone C-250

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• Microphone type:

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• Polarisation:

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• Nominal capacity:

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• Nominal sensitivity:

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• Frequency response:

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• Wind screen effect:

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<1 dB for frequencies <10 kHz

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<3 dB for frequencies <12.5 kHz

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Accessories

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-0.15 dB

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(+ 0.5 dB) 1 Hz to 830 kHz small

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signal

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10 GQ

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<25Q

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12- 30 Vdc

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2 mA

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< 2.7 ^iV

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14.6 ^iV

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LEMO 7 pins

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12.7 mm

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Vi" prepolarizado

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0 V

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17.0 pF

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46.4 mV/Pa

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(+2dB) 3.15 Hz to 20 kHz

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Box

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The characteristics, technical specifications and

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accessories may vary without prior notice

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CESVA instruments,s.l. Maracaibo, 6 - 08030 Barcelona (Spain) - Tel. (34) 934.335.240 - Fax. (34) 933.479.310 - e-mail: info@cesva.com - www.cesva.com

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