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STEREO MICROPHONES

 

AUDIO-TECHNICA BP4025  •  AT8022
Large Diaphragm One-Point Stereo Condenser Microphones

 

Ideal for stereo field recording, broadcast interviews and general stereo recording, Audio-Technica’s versatile BP4025 and AT8022 stereo condensers are unusual because they have large diaphragms to deliver pristine sound quality and exceptionally low noise (many stereo one-point mics only have the smaller diaphragms which can be OK but are more of a compromise in terms of performance and overall audio transparency). The coincident capsule configuration in the BP4025 and AT8022 produces an X/Y stereo image in an innovative coincident capsule configuration (see cutaway photos). This allows for a smaller housing while producing a wide stereo image with real spatial impact and realism. (The BP4025 is shown on the right of our photograph and the AT8022 on the left.)

Click here for a PDF spec sheet on the BP4025
Click here for a PDF spec sheet on the AT8022
Click here for a PDF leaflet on both mics


Main Specifications

Element: fixed charge back plate, permanently polarized condenser
Polar Pattern: X/Y Stereo
Frequency Response: 20 - 17,000Hz (BP4025); 20 - 15,000Hz (AT8022)
Low Frequency Roll-Off: 80Hz, 12dB/Octave
Open Circuit Sensitivity (BP4025): -32dB (25.1mV) re: 1V @ 1Pa
Open Circuit Sensitivity (AT8022): -38dB (12.5mV) re: 1V @ 1Pa
Channel Balance: <2.5dB
Impedance (BP4025): 170ohms
Impedance (AT8022): 250ohms (Phantom), 300ohms (Battery)
Maximum Input SPL (BP4025): 145dB SPL, 1kHz @ 1% T.H.D. (155dB SPL with 10dB pad)
Maximum Input SPL (AT8022): 128dB SPL (Phantom), 120dB SPL (Battery), 1kHz @ 1% T.H.D. Dynamic Range (BP4025): 131dB,  1kHz @ max SPL
Dynamic Range (AT8022): 109dB (Phantom), 101dB (Battery),  1kHz @ max SPL
Signal to Noise Ratio: 80dB (BP4025); 75dB (AT8022), at 1kHz/1Pa
Phantom Power Requirements: 11-52VDC 7mA typical (both channels total)
Battery Type (AT8022 only): 1.5V AA
Battery Current/Life: 0.7mA / 700 hours typical (alkaline)
Switch (BP4025): Flat/Roll-Off; 10dB Pad (nominal)
Switch (AT8022):
Battery On/Off; Flat/Roll-Off
Weight: 269g (9.5oz) (BP4025); 247g (8.7oz) (AT8022)
Dimensions: 186mm (7.32") long, 47.6mm (1.87") head diameter, 21mm (0.83" max body diameter)
Output Connector: Integral 5-pin XLRM type
Cable (BP4025): Balanced: 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
Cable (AT8022):
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
Supplied Accessories:
AT8405a stand clamp for 5/8"-27 threaded stands; windscreen; battery; soft protective pouch

 

AT-BP4025

Audio Technica BP4025 Stereo One-Point Microphone -
 

 

£550 each including Vat

AT-AT8022

Audio Technica AT8022 Stereo One-Point Microphone -
 

 

£440 each including Vat

RYC-055308

Rycote Special 80 Furry Wind-Jammer for BP4025 & AT8022 Microphones above
 

 

£36 each including Vat

AUDIO-TECHNICA BP4029
Stereo Short Shotgun Super-Directional Microphone

 

At just 236mm (9.29") in length, the BP4029 provides broadcasters, videographers and sound recordists professional quality stereo audio in a microphone that resembles a monaural shotgun mic. That means the BP4029 is easy to use with standard pistol grips, windscreens and camera mounts. Engineered for long-distance pickup in broadcasting and film/TV production, this compact M-S stereo shotgun features internal matrixing innovations that allow for stereo audio with or without an external matrix. It also features switchable low-frequency roll-off and independent line-cardioid and figure-of-eight condenser elements. Phantom powering only.

 

• Designed for broadcasters, videographers and sound recordists

• Compact, lightweight design is perfect for pistol grip, boom and camera-mount use

• Independent Line-cardioid and Figure-of-eight condenser elements

• Switchable low-frequency roll-off

• Switch selection of non-matrixed M-S mode
• Two internally-matrixed left/right stereo modes

 

Click here for a PDF leaflet on this mic

 

Main Specifications

Element: Fixed charge back plate, permanently polarised condenser
Polar Pattern: Line Cardioid, Figure-of-8 (MS Stereo)
Frequency Response: 40 - 20,000Hz
Low Frequency Roll-Off: 80Hz, 12dB/octave
Open Circuit Sensitivity: Mid: -30dB (31.6mV); Side: -34dB (19.9mV); LR Stereo: -36dB re: 1V @ 1Pa
Impedance: 200 Ohms
Maximum Input SPL: Mid: 123dB SPL; Side: 127dB SPL; LR Stereo: 126dB SPL, 1kHz at 1% THD
Dynamic Range (Typical): Mid: 101dB; Side: 101dB; LR Stereo: 102dB, 1kHz at Max SPL
Signal to Noise Ratio:
Mid: 72dB SPL; Side: 68dB SPL; LR Stereo: 70dB SPL, 1kHz at 1Pa
Power Requirements: 11-52VDC Phantom, 4mA typical at 48V, each channel
Switches: M-S, LR Stereo-Wide (LR-W); LR Stereo-Narrow (LR-N); flat, roll-off
Weight (Microphone): 103g (3.6oz)
Dimensions: 236mm (9.29") long, 21mm (0.83") diameter
Output Connector: Integral 5-pin XLRM-type
Cable:
Dual 0.61m (24") shielded two-conductor, terminated in two XLR3M-type connectors
Supplied Accessories: AT8405a stand clamp for 5/8"-27 threaded stands; AT8134 windscreen; protective carrying case
 

Optional Adaptors, Bars, Clips, Blimps, Zeps, Booms, Stands, Grips, Suspensions and Windgags - Click the Mic Accessories menu.
 

AT-BP4029

Audio-Technica BP4029 Stereo Short Shotgun Super-Directional Microphone (requires Connectronics microphone leads - click here)
 

 

£945 each including Vat

RODE NT4
X/Y Stereo One-Point Studio & Location Microphone

 

A unique solution to the age-old problem of stereo recording. By eliminating the need to purchase a matched pair of microphones (expensive) and the associated complex set-up bars and adaptors (messy) to get professional results. The NT4's fixed 90 degree X/Y configuration and perfectly matched stereo condenser capsules let you record any source with immaculate stereo detail.

The NT4 has a 128 dB dynamic range, 143 dBA SPL and low self-noise. Offering selectable battery or phantom power operation with power indicator light, the NT4 is ideally suited to both studio and location recording.

The NT4 comes supplied in a custom carry case with a windshield, XLR to mini-jack and dual XLR cables for portable solid state recorders with a mini-jack mic input or professional balanced XLR input connections.

 

Click here for a PDF leaflet on this mic
Click here for the instruction manual for this mic

 

Main Specifications

Acoustic Principle:
Stereo Microphone. 90° XY placement. Each side comprises an externally polarised single diaphragm condenser transducer.
Capsule Size: 0.5” (13mm)
Active Electronics: JFET Impedance converter with bipolar output buffer
Pickup Pattern: Cardioid per capsule
Output Impedance: 200Ω per side
Frequency Response: 20Hz - 20kHz
Sensitivity: -38 dB re 1v/Pa ± 2 dB equivalent to 12mV/Pa where 1 Pa = 94dBSPL
Equivalent Noise: <16 dBSPL, (A-weighted per IEC268-15)
Maximum Output: +13.9 dBu @ 1% THD into 1k
Dynamic Range: >128 dB
Maximum SPL: 143 dB @ 1% THD into 1k
Signal/Noise Ratio: 78dB
Power Requirements: 4 mA, P48 (38V–52V) 2 mA, P24 (20V-26V) 2.8 mA, P12 (10.8V-13.2V) 2.4mA using 9V battery
Packed Weight: 2.3kg (Mic only 480g)

 

RO-NT4

Rode NT4 X/Y Stereo One-Point Microphone

 

£465 each including Vat

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