Some or all Variants are In-Stock
In Stock and Ready to Ship
Ships in 1 to 3 business days. Monday to Friday, except bank holidays. Subject to stock availability and security checks.
- CrinEar Protocol Max
CrinEar Protocol Max
Portable DAC-Amplifier Dongle
- Dual Cirrus Logic DAC chips (CS43198)
- Up to 600mW output power
- Dual SG Micro SGM8262-2 Operational Amplifiers
- Adjustable and Persistent Parametric EQ
- Dual Power Modes
- Sleek Aluminium Housing
- Balanced 4.4mm and single-ended 3.5mm outputs
VAT Included for UK Customers.
For international customers, VAT is already removed from the displayed price. International Customers will incur local import taxes and duty charges.
VAT and Import Taxes FAQ-
Estimated Delivery:Dec 11 - Dec 15
RETURNS
Elise Audio has a standard 14-day return / exchange policy for electronic products (DAC/DAP):
- Must be returned in like-new factory condition
- Must include all original packaging and accessories
Please note that the return shipping cost is to be paid by the customer.
Read our full Returns, Warranty & Terms of service by clicking here
SHIPPING
We offer a range of delivery options to suit your purchasing needs. The options are presented to you at the checkout, in an easy to understand way.
Most orders for In-Stock items are shipped within 1 to 3 business days (Monday to Friday, except bank holidays), subject to stock availability and security checks. Please ensure you provide a valid phone number for us to contact you should verification of your identity be required.
For More information about our Shipping Policy please click here
CrinEar Protocol Max

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.



Technical Specifications
@ 16Ω: 62.5 mW (Eco), 600 mW (Boost)
@ 32Ω: 31.3 mW (Eco), 500 mW (Boost)
@ 300Ω: 3.5 mW (Eco), 54 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)