CrinEar Protocol Max Portable DAC-Amplifier

The Protocol Max marks CrinEar’s bold entry into the source gear market, bringing our philosophy of acoustic precision to digital-to-analog conversion and amplification. With up to 600 mW of clean power on tap from its balanced output, the Protocol Max effortlessly drives everything from sensitive in-ear monitors to demanding full-size headphones, all without breaking a sweat.

Beyond raw strength, the Protocol Max features persistent, PC browser-based parametric EQ via the Hangout.Audio Graph Tool, letting you fine-tune your sound signature and store your custom profiles directly onto the device. No companion app, no extra steps—just plug into your PC, set your curve, and enjoy.

With its blend of muscle, precision, and user-focused flexibility, the Protocol Max balances clean, reference-grade performance with real-world practicality, making it the ultimate pocket-sized DAC-amp for enthusiasts and professionals alike.

Core Features

• Dual Cirrus Logic DAC chips (CS43198): Provides transparent, high-resolution digital conversion.
  
  
• Dual SG Micro SGM8262-2 Operational Amplifiers: Provides up to 600mW of clean, robust amplification with minimal distortion.
  
  
• Adjustable and Persistent Parametric EQ: Upload and store custom EQ profiles directly from your PC browser.
  
  
• Dual Power Modes: Optimize for either efficiency (Eco) or maximum output (Boost).
  
  
• Sleek Aluminium Housing: Durable yet stylish construction for everyday portability
  
  
• Broad Output Support: Balanced 4.4mm and single-ended 3.5mm outputs with low output impedance for maximum compatibility.
  

What You Get

• CrinEar Protocol Max 
• TYPE-C to TYPE-C cable
• TYPE-C to USB-A cable
  

Specs

• DAC Chip: Dual Cirrus Logic CS43198
  
• Amp Chip: Dual SG Micro SGM8262-2
  
• Maximum Power Output (4.4mm Balance):
  - @ 8Ω: 31.3 mW (Eco), 442 mW (Boost)
  - @ 16Ω: 62.5 mW (Eco), 600 mW (Boost)
  - @ 32Ω: 31.3 mW (Eco), 500 mW (Boost)
  - @ 300Ω: 3.5 mW (Eco), 54 mW (Boost)
  
• Maximum Power Output (3.5mm Single-Ended):
  - @ 8Ω: 31.3 mW (Eco), 500 mW (Boost)
  - @ 16Ω: 15.63 mW (Eco), 250 mW (Boost)
  - @ 32Ω: 7.8 mW (Eco), 125 mW (Boost)
  - @ 300Ω: 0.8 mW (Eco), 13.5 mW (Boost)
  
• SNR @1kHz 0dBFS: 132 dB (4.4mm Balanced), 127 dB (3.5mm Single-Ended)
  
• Crosstalk @1kHz -6dBFS: -116 dB (4.4mm Balanced), -65 dB (3.5mm Single-Ended) 
  
• THD+N @1kHz 0dBFS: -118dB ( 4.4mm Balanced), -65dB (3.5mm Single-Ended)
  
• Output Impedance: < 0.4 Ω