CrinEar Protocol Max

CrinEar Protocol Max — Pocket Power, Unleashed
Meet the CrinEar Protocol Max, a portable DAC and headphone amplifier that brings desktop-class performance to your pocket. With up to 600 mW of clean power, dual Cirrus Logic CS43198 DACs, and full 10-band parametric EQ built directly into the device, the Protocol Max redefines what a dongle DAC can do — all for just $89.99 USD.
Performance That Defies Size
Engineered for enthusiasts who demand both muscle and precision, the Protocol Max can drive anything from ultra-sensitive IEMs to full-size planar magnetics without breaking a sweat. Its dual SG Micro SGM8262-2 op-amps deliver up to 600 mW from the balanced output, while the dual DAC architecture ensures a transparent, noise-free signal path.
Your Sound, Your Way
Forget companion apps — the Protocol Max uses a browser-based PEQ tool at graph.hangout.audio to store custom 10-band EQ profiles directly onto the device. Once saved, your EQ remains persistent across all devices — phones, tablets, laptops, and more. Fine-tune your signature, push to device, and go.
Smart Power Modes
Switch between Eco Mode for efficient portable listening or Boost Mode for maximum output. The Protocol Max automatically adapts its amplification and current draw, giving you the ideal balance of power and battery life.
Versatile Connections
With both 4.4 mm balanced and 3.5 mm single-ended outputs and an output impedance under 0.6 Ω, the Protocol Max pairs cleanly with virtually any headphone or IEM. Whether you’re using a flagship planar or a daily-carry IEM, you’ll get ruler-flat response and precise channel control.
Built to Travel
Machined from aluminum and finished with a quad-weave cable, the Protocol Max feels as solid as it sounds. Its thumb-drive form factor slips easily into your pocket — compact enough for everyday carry, powerful enough to replace your desktop amp.
Technical Specifications



Specification
Details




DAC Chips
Dual Cirrus Logic CS43198


Amplifier Chips
Dual SG Micro SGM8262-2 op-amps


Maximum Output (BAL)
600 mW @ 16 Ω (Boost Mode)


Maximum Output (SE)
500 mW @ 8 Ω (Boost Mode)


Signal-to-Noise Ratio @ 1 kHz 0 dBFS
132 dB (BAL) / 127 dB (SE)


THD + N @ 1 kHz 0 dBFS
-118 dB (BAL) / -116 dB (SE)


Crosstalk @ 1 kHz -6 dBFS
-116 dB (BAL) / -65 dB (SE)


Output Impedance
< 0.6 Ω (BAL) / < 0.3 Ω (SE)


Power Modes
Eco / Boost (selectable)


Outputs
4.4 mm Balanced & 3.5 mm Single-Ended


PEQ Functionality
10-band PEQ via browser tool (graph.hangout.audio)


Construction
Aluminum housing, quad-weave USB-C cable


Compatibility
Windows, macOS, Android, Nintendo Switch (UAC 1.0 mode)


Price
$89.99 USD



What’s in the Box

CrinEar Protocol Max DAC/Amp
USB-C to USB-C cable
USB-C to USB-A adapter cable
User manual

Compare to Similar Portable DAC/Amps



Model
DAC Chipset
Max Output Power (BAL)
PEQ Support
Price (USD)




CrinEar Protocol Max
Dual Cirrus Logic CS43198
600 mW @ 16 Ω
Yes (10-band browser-based)
$89.99


Moondrop MoonRiver 2 Ti
Dual CS43198
550 mW @ 32 Ω
No
$189


iBasso DC04 Pro
Dual CS43131
280 mW @ 32 Ω
Yes (App-based)
$119


Fiio KA3
Dual ESS ES9038Q2M
550 mW @ 32 Ω
No
$129