SPECIFICATIONS

Brand Name: linsoul

DSD Sampling Frequencies: 2.8224 MHz (DSD64),5.6448 MHz (DSD128)

Electrified: No

High-concerned chemical: none

Inputs: USB Type-C

Material: Plastic

Origin: Mainland China

Outputs: 3.5 mm

PCM Sampling Frequencies: 44.1 kHz,48 kHz,88.2 kHz,96 kHz,176.4 kHz,192 kHz

PCM Word Length: 16-bit,24-bit,32-bit

Type: Portable

CrinEar Protocol Micro Ultra-Portable DAC-Amplifier with Streamlined Counterpart to the Protocol Max

Features

Built-in 8-Band Parametric EQ with Browser-Based Configuration

Modified SPV4040 DAC for Clean Digital-to-Analog Conversion

Ultra-Low Output Impedance (<0.4Ω) for Sensitive IEMs

Compact USB-C Dongle Design for Everyday Portability

EQ Settings Stored Directly on Device

Premium Audio Performance at Just US$9.99

Streamlined Counterpart to the Protocol Max

No App Required — Configure via EQ.Hangout.Audio

Ultra-Portable DAC-Amplifier with Advanced Sound Customization

The CrinEar Protocol Micro is an ultra-compact USB-C DAC-amplifier designed to deliver clean audio performance and advanced sound customization at an exceptionally accessible price. Its defining feature is an integrated 8-band Parametric EQ, configurable through EQ.Hangout.Audio using a PC or macOS web browser. Users can fine-tune their earphones with adjustable parametric filters and save their preferred settings directly to the device, allowing personalized audio without requiring a dedicated app or EQ software during playback. 

Streamlined Design with Essential Audio Performance

The Protocol Micro is designed as a streamlined counterpart to the more powerful Protocol Max. By focusing on the essentials of the Protocol platform and omitting higher-power and balanced-output hardware, Micro delivers a compact 3.5mm solution with the same emphasis on clean audio and user-configurable EQ at a fraction of the price. This approach makes hardware-based parametric EQ accessible to virtually any listener without compromising on audio quality or reliability.

Built-in 8-Band Parametric EQ

Customize your sound with eight fully adjustable PEQ bands using the browser-based EQ.Hangout.Audio interface. EQ settings are stored directly on the device for consistent sound across compatible sources. This hardware-based approach eliminates the need for a dedicated app or EQ software during playback, ensuring your preferred settings travel with you across different devices and platforms for a seamless, personalized listening experience.

Modified SPV4040 DAC with Clean Conversion

The Protocol Micro features a modified SPV4040 DAC that delivers clean, reliable digital-to-analog conversion optimized for portable listening. The DAC chip works alongside an ultra-low output impedance of <0.4Ω, which preserves the intended frequency response of sensitive IEMs and headphones by minimizing electrical interaction. This combination ensures accurate audio reproduction across a wide range of earphones without unwanted sonic coloration or frequency deviations.

Compact USB-C Dongle Design

The Protocol Micro features a lightweight and highly portable USB-C dongle design, making it easy to carry for everyday use with USB-C smartphones, tablets, and computers. Its compact form factor eliminates the need for bulky equipment while delivering premium audio performance and hardware-based EQ functionality.

Exceptional Value with Premium Audio Performance

The device combines clean DAC conversion, ultra-low output impedance for sensitive earphones, and an integrated 8-band PEQ that stores settings directly on the hardware. This comprehensive feature set makes it an ideal entry point for listeners seeking high-quality USB audio and personalized sound without breaking the bank. 

Product specifications

Product Name: CrinEar Protocol Micro Ultra-Portable DAC-Amplifier
DAC Chip: Modified SPV4040
Output: 3.5mm Single-Ended
Maximum Power Output: 30mW @ 32Ω
THD+N @ 1kHz 0dBFS: 0.008%
Output Impedance: <0.4Ω

Packaging List

CrinEar Protocol Micro DAC-Amplifier ×1