Sterling Audio ST55 / ST31 Condenser Mic Package

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Sterling Audio

High-quality instrument and vocal miking made affordable.

The Sterling Audio ST55 / ST31 condenser mic package gives you an affordable means to record instruments and vocals with high-quality sound. It includes the Sterling Audio ST55 FET large-diaphragm and ST31 FET mid-size diaphragm condenser mics, the STPF2 mesh pop filter and the STSM4 shock mount.

Sterling ST55 FET Class A Condenser Microphone
The ST55 professional recording microphone raises the standard for acoustic capture of vocals and instruments. Based on an ultra-thin 3-micron gold-evaporated Mylar diaphragm, the ST55 also features a Disk ResonatorM that naturally extends high frequency response. Combined with Class-A FET circuitry, the ST55 provides incredible smoothness, detail and articulation for your recordings.

Sterling ST31 FET Condenser Microphone
The ST31 is an affordable microphone for making high-quality recordings of instruments. The ST31 features a mid-size ¾" diameter, 6-micron gold-evaporated Mylar diaphragm that is optimized to capture definition and detail of acoustic guitars, pianos, percussion, drum overheads, and more. The low-noise FET circuitry provides smoothness and warmth.

* Both ST55 and ST31 require 48V phantom power to operate.

  • ST55 FET:
  • Cardioid Polar Pattern
  • Large 1" all-brass capsule, hand assembled and oven baked for longterm stable operation
  • Ultra-thin 3-micron gold-evaporated Mylar diaphragm provides sonic detail and accuracy
  • Disk Resonator design extends high-frequencies naturally
  • Custom-wound nickel core output transformer
  • High-pass filter and -10dB pad
  • Black nickel-plated all brass body
  • Stainless steel head and grille assembly
  • Requires 48V phantom power
  • Includes: HM2 hard mount, Zipper case
  • ST31 FET:
  • Hyper-cardioid polar pattern
  • Warm detail, low-noise
  • Black nickel-plated all brass body
  • Stainless steel head and grille assembly
  • Requires 48V phantom power
  • Includes: Rugged vinyl zipper case, HM1 swiveling hard mount

Looking for an affordable solution for multi-purpose instrument and vocal miking? You've found it. Order the Sterling ST55/ST31 mic package today!


ST55 / ST31 Condenser Mic Package Specifications:

  • ST55 FET:
    Preamp: Class-A FET
    Polar Pattern: Cardioid
    Frequency Response" 20Hz - 18kHz
    High Pass Filter: Switchable 75Hz, 12dB/octave
    Attenuation Pad: Switchable -10dB
    Sensitivity: 32mV/Pa
    Maximum SPL: 134dB-144dB (adjustable w/pad)
    Equivalent Noise: 22dB SPL - A Weighted
    Typical Load Impedance: >500 ohm
    Output Source Impedance: 200 ohm transformer-isolated
    Dimensions 7-1/2" long, 1-13/16" max. dia.
    Weight: 1.2 lb.
    Power: Phantom Power

    ST31 FET:
    Preamp: Low-noise FET circuitry
    Polar pattern: hypercardioid
    Frequency response 20Hz - 18kHz
    Sensitivity: 5mV/Pa
    Maximum SPL: 146dB
    Equivalent noise: < 28dB SPL - A-weighted
    Typical load impedance: >500 ohm
    Output source impedance: 200 ohm transformerless
    Dimensions: 7" long, 1-3/16" max. Dia.
    Weight: 7.4 oz.
    Power: phantom power
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