Audio-Technica BP4025 Microphone User Manual


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broadcast & production microphones
X/Y Stereo Field Recording Microphone X/Y Stereo Microphone
Bp4025
AT8022
msrp
$499.00
msrp
$749.00
Polar Pattern Frequency Response
Audio-Technica’s versatile AT8022 stereo condenser is designed
for easy use with either consumer or professional gear. Featuring a
compact coincident capsule conguration, the microphone is supplied
with two cables for use with either pro equipment offering XLR inputs,
or with consumer gear equipped with 3.5 mm TRS input. The ruggedly
constructed AT8022 stereo microphone is fully RoHS-compliant.
•Innovativecapsulecongurationproducesaccuratestereo
imageinsmallerhousing
•Compact,lightweightdesignisperfectforvideocamera-mount
useaswellasforstereoeldrecording,interviewsand
homerecording
•Idealforusewithhandhelddigitalrecordingdevices
•Operatesonbatteryorphantompower—forusewithproor
consumerequipment
•Switchablelow-frequencyroll-off
•Includestwocables:onebalanced(two3-pinXLRM-type
connectorsatoutput);oneunbalanced(3.5mmTRSatoutput)
Audio-TechnicaU.S.,Inc., 1221 Commerce Drive, Stow, Ohio 44224 (330) 686-2600 E-mail: pro@atus.com audio-technica.com
©2008 Audio-Technica U.S., Inc. Printed in U.S.A. Form No. 0306-2406-00
Specications
†
Element Fixed-charge back plate, permanently polarized condenser
Channel balance <2.5 dB
|
Polar pattern X/Y Stereo
|
Frequency response 20-15,000 Hz
Low frequency roll-off 80 Hz, 12 dB/octave
|
Impedance (phantom/battery) 250 ohms / 300 ohms
Open circuit sensitivity (phantom/battery) –38 dB (12.5 mV) / –38 dB (12.5 mV) re 1V at 1 Pa*
Maximum input sound level (phantom/battery) 128 dB / 120 dB SPL, 1 kHz at 1% T.H.D.
Dynamic range (typical) (phantom/battery) 109 dB / 101 dB, 1 kHz at Max SPL
Signal-to-noise ratio
1
75 dB, 1 kHz at 1 Pa*
Phantom power requirements 11-52V DC, 2 mA typical (each channel)
Battery type / current / life 1.5V AA/UM3 / 0.7 mA / 700 hours typical (alkaline)
Switches Battery On/Off; Flat, roll-off
|
Weight (less cable and accessories) 247 g (8.7 oz)
Dimensions 186.0 mm (7.32'') long, 47.6 mm (1.87'') head diameter, 21.0 mm (0.83'') maximum body diameter
Output connector Integral 5-pin XLRM-type
Cables Balanced: 2.0 m (6.5') long, 8 conductor, shielded, vinyl-jacketed stereo cable with 5-pin XLRF-type
connector at microphone end and two 3-pin XLRM-type connectors at output end; Unbalanced: 0.6 m (2.0') long
stereo cable with 5-pin XLRF-type connector at microphone end and 3.5 mm TRS connector at output end
Accessories furnished AT8405a stand clamp for
5
/8"-27 threaded stands; windscreen; battery;
soft protective pouch
Designed for broadcast and professional recording, Audio-Technica’s
BP4025 stereo condenser offers large-diaphragm capsules in an
innovative coincident capsule conguration. This allows for a smaller
housing while producing an X/Y stereo image with the spatial impact
and realism of a live sound eld. Ideal for use with professional audio
and video equipment, the microphone is fully RoHS-compliant — free
from all substances specied in the EU directive on the reduction of
hazardous substances (RoHS).
•Large-diaphragmcapsulesofferpristinesoundqualityand
exceptionallylownoise
•Innovativecoincidentcapsulecongurationproducesaccurate
stereoimageinsmallerhousing
•Compact,lightweightdesignisidealforcamera-mountuse
•Excellentchannelseparation
•Phantompoweroperation—forusewithprofessionalequipment
•Switchablelow-frequencyroll-offand10dBpad
•Includesonebalancedcable(two3-pinXLRM-typeconnectors
atoutput)
†
In the interest of standards development, A.T.U.S. offers full details
on its test methods to other industry professionals on request.
*1 Pascal = 10 dynes/cm
2
= 10 microbars = 94 dB SPL
1
Typical, A-weighted, using Audio Precision System One.
Specications are subject to change without notice.
Polar Pattern Frequency Response
Specications
†
Element Fixed-charge back plate, permanently polarized condenser
Channel balance <2.5 dB
|
Polar pattern X/Y Stereo
Frequency response 20-17,000 Hz
|
Low frequency roll-off 80 Hz, 12 dB/octave
Open circuit sensitivity –32 dB (25.1 mV) re 1V at 1 Pa*
|
Impedance 170 ohms
Maximum input sound level 145 dB SPL, 1 kHz at 1% T.H.D.; 155 dB SPL, with 10 dB pad (nominal)
Dynamic range (typical) 131 dB, 1 kHz at Max SPL
|
Signal-to-noise ratio
1
80 dB, 1 kHz at 1 Pa*
Phantom power requirements 11-52V DC, 7 mA typical (both channels total)
Switches Flat, roll-off; 10 dB pad (nominal)
|
Weight (less cable and accessories) 269 g (9.5 oz)
Dimensions 186.0 mm (7.32") long, 47.6 mm (1.87") head diameter, 21.0 mm (0.83") body diameter
Output connector Integral 5-pin XLRM-type
Cable 5.0 m (16.5') long, 8 conductor, shielded, vinyl-jacketed stereo cable with 5-pin XLRF-type
connector at microphone end and two 3-pin XLRM-type connectors at output end
Accessories furnished AT8405a stand clamp for
5
/8"-27 threaded stands; windscreen;
soft protective pouch
LEGEND
200 Hz
SCALE IS 5 DECIBELS
PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
LEGEND
8 Hz
SCALE IS 5 DECIBELS
PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
LEGEND
1 kHz
SCALE IS 5 DECIBELS
PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
12" or more on axis
Roll-off
LEGEND
Frequency in Hertz
Response in dB
10 dB
100
50
200
10k
5k
1k
500
2k
20k
LEGEND
200 Hz
SCALE IS 5 DECIBELS
PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
LEGEND
8 Hz
SCALE IS 5 DECIBELS
PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
LEGEND
1 kHz
SCALE IS 5 DECIBELS
PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
12" or more on axis
Roll-off
LEGEND
Frequency in Hertz
Response in dB
10 dB
100
50
200
10k
5k
1k
500
2k
20k
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