Audio Preamplifier Behringer MIC300 Black

The Behringer TUBE ULTRAGAIN MIC300 is a compact audio preamplifier that uses a hand-selected 12AX7 vacuum tube to add warmth, presence and vintage tube compression to microphones, acoustic instruments and bass. Designed for both studio and live use, the unit features balanced 1/4" TRS and gold-plated XLR inputs and outputs and is compatible with standard digital recorders and sound cards. The preamplifier is finished in black and offers low-noise operation thanks to UTC (ULTRA-TUBE circuitry) technology.

Advantages

The MIC300 delivers vintage tube character in a portable, affordable format, combining tube preamp tone with DI-style functionality. Its hand-selected 12AX7 tube and UTC circuitry provide classic tube warmth and subtle compression while maintaining low noise. Balanced TRS and gold-plated XLR connectors ensure flexible connectivity for studio and live setups.

Suitable for

• Microphone preamplification for vocals
• Recording acoustic guitars and bass with added tube warmth
• Direct injection (DI) style use with instruments into digital recorders or audio interfaces
• Small studio and live performance setups requiring a vintage tube tone

Key specifications

• Tube type: 12AX7 (hand-selected)
• Connectivity: Balanced 1/4" TRS inputs/outputs and gold-plated XLR inputs/outputs
• Colour: Black
• Technology: UTC (ULTRA-TUBE circuitry) for low-noise tube operation
• Manufacturer: Behringer, MPN 000-E7J01-00010, EAN 4033653081504

How to use

Connect the MIC300 between your microphone or instrument and your recorder or audio interface using the balanced 1/4" TRS or XLR connections as appropriate. Power the unit according to the manufacturer’s instructions and insert the hand-selected 12AX7 tube if it is not already installed. Adjust input gain and output level to achieve the desired amount of tube warmth and vintage compression while monitoring levels to avoid clipping.

Recommendations

For consistent performance, allow the tube to warm up for a few minutes before critical recording. Use balanced connections when possible, and set gain levels conservatively to preserve low-noise operation while capturing the desired tube character.