Ultra-Portable DAC-Amplifier with PEQ

US$9.99

Small Dongle.

Big Control.

Great sound shouldn't be complicated or expensive.

The CrinEar Protocol Micro combines a clean, transparent USB-C DAC with a powerful PEQ functionality in an ultra-compact dongle that fits in your pocket.

Whether you're listening on your phone, tablet, or laptop, Protocol Micro gives you the freedom to tailor your sound wherever you go.

Built-In 8-Band PEQ

Most USB-C dongles simply play audio. Protocol Micro lets you shape it.

Using EQ.Hangout.Audio on any compatible PC or macOS browser, you can adjust eight parametric EQ bands, fine-tuning frequency, gain, and bandwidth to match your headphones, correct tonal balance, or create your own sound signature.

Once saved, your EQ profile is stored directly on the Protocol Micro. No companion app. No background software. Simply plug it into a compatible USB-C device and enjoy your preferred tuning.

Ultra-Low Output Impedance

Some DACs colour your IEMs, even before EQ.

Protocol Micro features an output impedance of less than 0.4Ω, ensuring minimal interaction with your earphones. Sensitive IEMs retain their intended frequency response, while multi-driver designs remain consistent and accurate.

Your earphones, the way they were designed to sound.

max, minimised.

Protocol Micro distills the core philosophy of Protocol Max into a smaller, more affordable package. By specifically focusing on clean audio, ultra-low output impedance, and built-in parametric EQ, it delivers the essential Protocol experience at a much more accessible price.

Simple. Portable. Reliable.

Protocol Micro is designed to disappear into your daily carry.

Its lightweight “dongle” form factor slips easily into the smallest pockets, while USB-powered operation means there's nothing to charge. Simply connect it to your compatible device and start listening.

Whether you're commuting, working, gaming, or relaxing at home, Protocol Micro is always ready.

Specifications

  • DAC Chip: Modified SPV4040 DAC

  • Maximum Power Output: 30mW (@32Ω)

  • Output Impedance: <0.4Ω

  • THD+N @1kHz 0dBFS: <0.009%

  • Microphone Compatibility: Yes

In the box:

1x CrinEar Protocol Micro

1x User manual