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The STO-2 is a pressure transducer. So are your ears. No Coincidence.

We started out looking for a natural sounding mic and this is what we came up with.

Sold in matched pairs, (two ears right?) the STO-2’s are perfect for capturing instruments that need no flattery.

With a matched pair, stereo is no problem – Jecklin disk or spaced pair – it will sound like you are standing there.


Transducer Type 0.25″ Electret condenser pressure
Polar Pattern Omni-Directional
Output Level 5.25 (mV/Pa)
Frequency Response 20 Hz – 20 kHz (+0/-2 db)
Equivalent Noise (A-weighted) 28 dB
Maximum SPL 145 dB (with 48V powering)
Output Impedance 20Ω (load ≥ 1kΩ )
Power Requirements P48 phantom power (~6 mA)
Weight 3.6 oz (100 g)
  • Stock: In Stock
  • Model: STO-2
Ex Tax: $550.00
Tags: STO-2