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CardioidBehringer B-1

Cardioid Condenser Microphone

The B-1 is an inexpensive large-diaphragm condenser with a fixed Cardioid polar pattern. A 3-way switch on the front of the microphone enables a 10dB pad or high-pass filter (one or the other, not both). The mic was made by 797 Audio, and appears to be nearly identical to the first-generation Studio Projects C1.

The capsule is 797 Audio’s version of the Neumann K67: a 34mm O.D., center-terminated capsule. Because the mic is Cardioid only, this capsule was made with single-sided capsule; only the front diaphragm is metallized, and only the front backplate is brass.

Behringer B-1 circuitThe B1 circuit, like the Studio Project C1, is a derivative of the Schoeps design, with bipolar transistors used to create balanced output (without a transformer).

Notably missing from the B1 circuit is a trimpot to set the JFET bias point. This suggests that the B1 might have higher distortion levels than the Studio Projects C1/C3, although it is possible that the JFETs used in the B1 were biased externally (via selected fixed-value resistor combinations).

The B-1 ships with aluminum briefcase, shockmount, and foam pop filter.

The Behringer B-1 is also known as: B1/B.


Pickup Patterns Pads & Filters
Cardioid (20 mV/Pa; 20 - 20,000 Hz)
  • Pad: -10 dB (Via Switch)
  • Filter: 75 Hz HPF (6dB/Octave) (Via Switch)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 26mm
Capsule diameter: 34mm
50 Ohms (Low) Max SPL: 148 dB
Self-noise: 13.0 dB(A)
Weight Length Max Diameter Interface(s)
461g (16.26oz) 174mm (6.85'') 58mm (2.28'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 48v

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