Mic No. 0002

The second microphone. Still built like the first.

Every company has a point where building one microphone at a time becomes building hundreds.

This isn’t that point.

This No. 0002 mic was assembled, tested, and measured entirely by hand, just like No. 0001. Every component was selected, every solder joint inspected, and every adjustment made at the workbench before this microphone left for its new home.

While its serial number is different, the goal remains exactly the same:

Build a microphone worthy of being used for decades.

Bench Notes

No. 0002 represents another step toward that goal.

With every microphone I build, I learn something new—whether it’s a cleaner wiring layout, a more consistent bias point, or simply another opportunity to improve the craftsmanship inside. Those small improvements compound over time.

The hope is that years from now, every serial number tells part of the story of how Aodio grew.

Thank you for being part of the beginning.

— Aaron Osborne

Features

• Cardioid large-diaphragm condenser

• RK-87C capsule

• UTM-87 output transformer

• Individually hand-biased JFET

• Selected vintage film capacitors

• Vishay Dale precision resistors where applicable

• Switchcraft XLR connector

• Individually measured frequency response chart included

• Signed letter of authenticity

• Unique serialized microphone

Built by Hand

Every solder joint, every component, and every adjustment is completed by hand. Each microphone receives its own frequency response measurement and final listening test before shipping.

No two microphones are completely identical, and that’s part of what makes each one unique.

This isn’t about recreating the past.

It’s about building something worthy of becoming someone’s favorite microphone.

Included

• Mic No. 0002

• Felt storage cover

• Individual frequency response chart

• Signed letter of authenticity

Individual Frequency Response

This frequency response was measured individually for this microphone using a calibrated comparison process and is provided as a reference for this specific unit.

While every measurement is performed carefully and consistently, it is not intended to represent an anechoic laboratory calibration. Small variations in environment, positioning, and equipment can influence the measured response.