ESI Amber i2 24-bit/192 kHz USB-C Audio Interface with 2 Mic/Line/Instrument Inputs and +48V Phantom Power

Capture studio-grade audio at up to 24-bit/192 kHz resolution with the ESI Amber i2, a compact USB-C audio interface built around high-performance converters delivering a 108 dB DAC dynamic range. Whether recording vocals, instruments, or line-level sources, the Amber i2 provides two combo XLR/TRS inputs with switchable +48V phantom power and Hi-Z instrument support, making it a versatile hub for home studios, podcasting, and mobile production.

Overview

The ESI Amber i2 is a bus-powered USB 2.0 audio interface housed in a rugged aluminum chassis. It features two analog inputs on combo XLR/TRS connectors, each with a dedicated gain control and switchable phantom power for condenser microphones. Input 1 can be switched to Hi-Z mode for direct connection of electric guitars or basses. Outputs include two balanced 1/4" TRS jacks for studio monitors and a separate 1/4" TRS headphone output with independent level control. Hardware direct monitoring allows zero-latency monitoring of input signals, while the USB-C connection ensures compatibility with modern computers and mobile devices.

What stands out

• High-resolution 24-bit/192 kHz recording and playback
• Two XLR/TRS combo inputs with switchable +48V phantom power
• Hi-Z instrument input for direct guitar/bass connection
• Hardware direct monitoring for zero-latency tracking
• USB bus-powered – no external power supply needed
• Aluminum chassis for durability and portability
• Works with Windows, macOS, and iOS

Technical details

• ADC dynamic range: 102 dB (A-weighted)
• DAC dynamic range: 108 dB (A-weighted)
• Frequency response: 20 Hz – 20 kHz (±0.1 dB)
• Inputs: 2 x XLR/TRS combo (mic/line/instrument)
• Outputs: 2 x 1/4" TRS (main), 1 x 1/4" TRS (headphone)
• Phantom power: +48V, switchable
• Instrument input: Yes (Hi-Z, switchable)
• Direct monitoring: Yes (hardware)
• Power source: USB bus powered
• Connectivity: USB-C (device side), USB 2.0
• ASIO support (Windows), CoreAudio support (macOS)

Our verdict

The ESI Amber i2 delivers exceptional audio quality and flexibility in a compact, bus-powered package. Its high dynamic range, dual combo inputs, and zero-latency monitoring make it an excellent choice for musicians, podcasters, and content creators who need reliable performance on the go or in the studio.