MV:200A Preamplifier0 pages

MICROPHONES

PREAMPLIFIERS

ACCESSORIES

CALIBRATION

SPECIAL

MV:220A 1/2” Prepolarised Microphone
Preamplifier

Overview

The MV:220A can be used with the Cirrus Research

The MV:220A ½-inch Preamplifier is a general

Class+ Microphone Capsules including:

purpose preamplifier suitable for use with

•t tMK:224 Class 1

prepolarised microphone capsules.

•t tMK:226 Class 1
•t tMK:216 Class 2

It is a small unit with a slimline profile and is

•t tMK:215 Class 2

powered via the coxaial BNC-type connector.

•t tMK:4052H Class 2 High Level

Power is from a suitable constant-current source
of typically 4mA with a power supply excitation
voltage of between 15v and 24v DC.
The frequency response (-3dB points) of the
MV:220A are 2.6Hz to 150kHz.
Specifications
Frequency Response
t
-0.1dB at 16Hz and 20kHz
t
-3dB at 2.6Hz and 150kHz
Input Impedance
t
>1200 MΩ
Output Impedance:
t
50 Ohms
Gain
t
-14.8dB (5.5x) with 18pF Microphone Capsule
Noise Floor
t
A-weighted: < 45dB
Dimensions:
t
Length: t
98mm
t Diameter:tØ13mm
Power Supply

Excitation Voltage: tt
Constant Current Excitation: t
Output bias voltage: tt

17 to 25 VDC
4mA
10VDC

Polarisation Voltage
tNone
Output Voltage
t
Maximum output signal voltage: 1V RMS (2.82V Pk-Pk)
t
Maximum signal input (with 40mV/Pa mic.capsule): 140dB
Maximum Cable Length
t
100 meters
Connection
t
Input: t
t
Output: t

1/2” Microphone 60 UNS
Coaxial BNC

Startup stabilisation time
t
15 seconds
Temperature
t
Operation:t -10oCto +50oC
tStorage:t -20oC to +60oC

Acoustic House
Bridlington Road
Hunmanby
North Yorkshire
YO14 0PH
United Kingdom

MV220A/08/10/r1EN

T: 0845 230 2434 (UK)t
+44 1723 891655
F: +44 1723 891742
E: sales@cirrusresearch.co.uk
W: www.cirrusresearch.co.uk

ISO 14001:2004
EMS 552104

ISO 9001:2008
FM 531001