The 3506A Stereo Kit with 4006A Omnidirectional Microphones by DPA Microphones is a kit for the crucial capturing of instruments or vocals in recording and live sound reinforcement applications. The 3506A kit includes two frequency matched 4006A omnidirectional microphones; two APE30RS acoustic pressure equalizers, 30mm ball; two APE40RS acoustic pressure equalizers, 40mm ball; two APE50RS acoustic pressure equalizers, 50mm ball; two DD0251 free-field grids, silver; two DD0254 close-miking grids, trapezoid silver; two DD0297 diffuse-field grids; two UA0777 nose cones; two US0896 foam windscreens; two UA0961 microphone clips; and one UA0837 stereo boom excluding holders.
The specially selected 4006As are matched within ± 0.5 dB on frequency range, sensitivity and self noise. The high sensitivity, low noise-floor and extremely linear frequency response of the microphone pair makes the 3506A kit a great choice for all professional A-B stereo recordings.
Key Features
- The kit includes a frequency and sensitivity matched pair of 4006A omnidirectional microphones
- Exceptional linearity, particularly at the high-end
- Clean, neutral sonic character
- Omnidirectional polar pattern
- Ideal for A-B stereo pairs for symphonic concert hall recordings
Specifications
Directional Characteristic |
Omnidirectional |
Principle of Operation |
Pressure |
Transducer |
Pre-polarized Condenser |
Frequency Range |
10 Hz to 20 kHz ± 2 dB: 10 Hz to 20 kHz |
Sensitivity |
Nominal ± 2 dB at 250 Hz: 40 mV/Pa; -28 dB re. 1 V/Pa |
Equivalent Noise Level |
A-weighted: Typ. 15 dB (A) re. 20 µPa (max. 17 dB (A)) ITU-R BS.468-4: Typ. 27 dB (max. 29 dB) |
Signal-to-Noise Ratio |
(A-weighted), re. 1 kHz at 1 Pa (94 dB SPL): Typ. 79 dB(A) |
Total Harmonic Distortion (THD) |
< 1 % up to 139 dB SPL peak |
Minimum Load Impedance |
2 kΩ |
Dynamic Range |
Typ. 124dB |
Max Input Sound Level (SPL) |
147dB |
Switchable Attenuator |
0 dB / -20 dB |
Output Impedance |
< 200 Ω |
Cable Drive Capability |
328' (100 m) |
Output Balance Principle |
Impedance balancing with active drive |
Common Mode Rejection Ratio |
> 60 dB |
Power Supply |
For Full Specifications: 48 V Phantom power (+/- 4V) |
Current Consumption |
2.8 mA |
Connector |
XLR-3M: Pin 1 shield, pin 2 signal + phase, pin 3 - phase |
Output Voltage |
RMS: > 5 V |
Polarity |
+V at Pin 2 for positive sound pressure |
Temperature Range |
-40 ° to 122 °F (-40 ° to 50 °C) |
Relative Humidity |
Up to 90% |
Classification |
Conforms to IEC 61672 class I (with near-field grid DD0251) |
Matching Tolerance |
± 0.5 dB |
Phase Deviation For Kit |
< 5° |
Dimensions (Diam. x L) |
Mic: 0.63 x 6.7" (16 x 170mm) Mic Capsule Diameter: 0.63" (16 mm) |
Weight |
5.7 oz (163 g) |