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ST51 Large Diaphragm FET Condenser Microphone

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Vocal or instrument condenser offers excellent transient response and detail.

The ST51 is an affordable, true-condenser large diaphragm recording microphone with outstanding sound and construction. The ST51's 6-micron, gold-evaporated Mylar diaphragm is optimized to capture definition and detail for both vocal andinstrument recordings. Class-A FET circuitry provides unparalleled smoothness and warmth to your recordings.

Requires phantom power.


  • Disk Resonator design extends high-frequencies naturally
  • Large 1.25" all brass capsule, hand assembled and oven baked for long term stable operation
  • Black nickel-plated all brass body
  • Stainless steel head and grille assembly
  • Custom-wound nickel core output transformer
  • HM-2 hard mount
  • Rugged vinyl zipper case included

ST51 Large Diaphragm FET Condenser Microphone Specifications:

  • Preamp: Class-A FET
  • Polar Pattern: Cardioid
  • Frequency Response: 20Hz”18,000Hz
  • Equivalent Noise: 22dB SPL”A Weighted
  • Sensitivity: 32mV/Pa
  • Maximum SPL: 134dB-144dB (adjustable w/pad)
  • Typical Load Impedance: >500 ohms
  • Output Source Impedance: 200 ohms transformer isolated
  • Dimensions: 7.5" long, 1.8" max. dia.
  • Weight: 1.2lb.
  • Power: Phantom Power
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