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Mods for the SC 400

  • Microphone PartsMicrophone Parts
    The SC400 Mod Kit from Microphone-Parts overhauls the audio circuit of this microphone, resulting in a very low noise, low distortion, high-performance mic. The stock capsule can be retained by implementing corrective EQ within the circuit. Alternatively, the capsule can be replaced with a K47 type to change the tonal character of the microphone.

t.bone SC 400

Pricing & Availability

  • MSRP: €57


SC 400 Documentation

Supercardioidt.bone SC 400

Supercardioid Condenser Microphone

The t.bone SC 400 is a large-diaphragm condenser with a switchable high-pass filter and transformerless output.

t.bone SC 400 circuitIt uses the same circuit as several other microphones:

  • Nady SCM 800
  • CAD GXL2200
  • CAD GXL2400
  • Apex 435

The mic’s capsule is a 32mm K67 style, with one diaphragm metallized.

A switch on the circuit board enables a high-pass filter. The body sleeve must be removed to access this switch; it does not protrude through the body.

t.bone’s specification sheet gives the mic’s self-noise at 6.7dBA, which is incorrect. The mic’s self-noise is closer to 20dBA.

Unlike other vendors of this microphone, Thomann cites the mic’s polar pattern as supercardioid rather than cardioid; the published polar chart shows a lobe of sensitivity behind the mic, with nulls offset from 180°.

Permalink: t.bone SC-400


Pickup Patterns Pads & Filters
Supercardioid (23.3 mV/Pa; 20 - 20,000 Hz)
  • Filter: HPF: -6dB/octave @ 100 Hz (Via Switch)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 25mm
Capsule diameter: 32mm
Diaphragm gauge: 6 microns
120 Ohms (Low) Max SPL: 132 dB
Weight Length Max Diameter Interface(s)
n/a 152mm (5.98'') 44mm (1.73'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 48v

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