Pair of omnidirectional condenser microphones

The STO-2 is a pressure transducer, just like our ears. That's no coincidence: Avenson set out to make microphones with the most natural sound possible, and that is how the STO-2 was born. Sold in matched pairs (like two ears!), STO-2s are perfect for capturing instruments that don't need to be altered or flattered.

Specifications

• Transducer type: electret condenser, 0.25" pressure transducer
• Polar pattern: omnidirectional
• Sensitivity: 5.25 mV/Pa
• Frequency response: 20 Hz - 20 kHz (+0/-2 dB)
• Equivalent noise: 28 dB (A-weighted)
• Maximum SPL: 145 dB (with 48 V power)
• Output impedance: 20 Ω (load ≥ 1 kΩ)
• Power: 48 V phantom (~6 mA)
• Weight: 100 g