Sterling Audio ST55 FET
Cardioid Condenser Microphone
The Sterling Audio ST55 FET appears to be a reincarnation of the Groove Tubes GT55.
Both are fixed-cardioid solid-state condenser microphones with the 32mm “disk resonator” capsule pioneered by GT founder Aspen Pittman. The capsule in both mics uses a 3-micron diaphragm.
Both have very high sensitivity of 32mV/Pa, and high self-noise of 22dBA. Most modern FET condenser have much lower self-noise (4dBA being extraordinary, 12–16dBA being common).
Both mics use custom-wound, nickel-core output transformers, built into nickel-plated brass bodies with a painted black finish and chrome trim.
Two switches below the headbasket independently enable the pad (-10dB) and high-pass filter (-12dB/octave @ 75Hz).
The mic includes a hardmount (Sterling p/n HM2) and zippered storage case. A shockmount (p/n SM4) is available separately.
Permalink: Sterling Audio ST55
The mic was released in 2007.
|Pickup Patterns||Pads & Filters|
(32 mV/Pa; 20 - 20,000 Hz)
| Diaphragm diameter: 26mm
Capsule diameter: 32mm
Diaphragm gauge: 3 microns
|200 Ohms (Low)||Max SPL: 144 dB
Self-noise: 22.0 dB(A)
|544g (19.19oz)||190mm (7.48'')||46mm (1.81'')||
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