The Protocol Max is a portable DAC-amplifier with a 10-band PEQ and dual Cirrus Logic CS4319 units. It is compatible with devices such as Android, Windows, iOS, and macOS, and features a 4.4mm balanced and 3.5mm single-ended headphone jack. This device is designed for audio playback, digital-to-analog conversion, and professional audio uses, with a frequency response of 384 KHz. Its compact and lightweight design makes it ideal for on-the-go use, and it comes with a 1-year manufacturer warranty. The Protocol Max offers adjustable and persistent parametric EQ, as well as a range of additional features to enhance your audio experience.

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Box is open and amp has been tested, it is in brand new packaging.