The preamp runs great but you need a step down converter or buy a new US power supply.220 volt power supply included.

The Golden Age Project (GAP) PRE-73 MKII is a highly popular, vintage-style microphone, line, and instrument preamplifier that brings the classic, warm, and punchy character of 1973-era British consoles to modern studios. It achieves this "Neve 1073-style" tone using a fully discrete signal path with no integrated circuits (ICs). [1, 2, 3, 4, 5]Key Features & Specifications

• Discrete Circuitry: Features three separate transformers for the balanced mic input, line input, and output. [1, 2]
• High Gain: Up to 80 dB of gain on the mic input, making it perfectly capable of handling passive ribbon microphones. [1, 2, 3, 4, 5]
• Impedance Switching: The microphone input impedance can be switched between 1200 and 300 ohms to subtly alter the tone and frequency response of many microphones. [1, 2, 3, 4]
• Separate Output Control: Allows you to drive the main gain stage hard into saturation for added analog color, then lower the final signal volume using the master output level without clipping your audio interface. [1, 2, 3, 4]
• Instrument Input (DI): Includes a high-impedance DI input that passes the signal through the mic input transformer for rich, thick guitar, bass, and synth tracks. [1, 2, 3]