400 Grams

Connect SM58 to RO03 XLR input. Link RO03 output to 2i2 6.35mm Line In via XLR-TRS cable or 6.35mm TRS cable. Set 2i2 gain to minimum, then adjust RO03 gain slowly for a healthy signal level. Replace your interface’s preamp with the RO03 for more cleaner, quieter recordings.

Model Number RO03. Mfr Part Number RO03. Included Components 1 Power Adapter, 1 Power Cord, 1 RO03 Mic Preamp, 1 User Manual. The 2026 latest version focuses on noise reduction, improving the EIN to -120dB, achieving professional-grade noise performance.