CRINEAR PROTOCOL MAX Balanced Portable DAC Headphone Amplifier

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The CrinEar Protocol Max portable headphone amplifier and DAC is a device based on audiophile components to meet the needs of a demanding audience. It is based on two CS43198 DAC chips for digital-to-analog conversion and dual SGM8262-2 OPAmps for amplification. The Protocol Max is therefore capable of supporting sampling rates up to PCM 32bit 384kHz and DSD256 while delivering 600mW into 16Ω (Boost Mode).

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2 Years warranty
 
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CrinEar Protocol Max Balanced Portable DAC Headphone Amplifier 2x CS43198 PCM 32-bit 384kHz DSD256

Photo of the CRINEAR Protocol Max

The CrinEar Protocol Max portable headphone amplifier and DAC is a device based on audiophile components to meet the needs of a demanding audience. It is based on two CS43198 DAC chips for digital-to-analog conversion and dual SGM8262-2 OPAmps for amplification. The Protocol Max is therefore capable of supporting sampling rates up to PCM 32bit 384kHz and DSD256 while delivering 600mW into 16Ω (Boost Mode). Added to this is a parametric EQ function with the browser-based Hangout.Audio Graph Tool. In terms of connectivity, there is a USB-C input, a single-ended 3.5mm jack output, and a balanced 4.4mm jack output. Finally, the overall design is simple and sleek, with a solid aluminum casing and tempered glass for maximum effect.

CrinEar Protocol Max: Powerful headphone amplifier DAC

Equipped with two Cirrus Logic CS43198 DACs and two SG Micro SGM8262-2 operational amplifiers, the Protocol Max offers crystal-clear resolution, extended dynamics, and distortion-free amplification. It supports high-resolution sampling rates up to PCM 32-bit 384kHz and DSD256, and has sufficient output power to drive headphones and IEMs with impedances ranging from 16 to 300 ohms.

The CRINEAR Protocol Max chipset
CRINEAR Protocol Max operating modes

CrinEar Protocol Max: Two operating modes

Switch from Eco mode for reduced energy consumption to Boost mode for maximum power. Whether you're listening on the go or at your desk, Protocol Max adapts to your equipment and your needs.

CrinEar Protocol Max: Parametric EQ

Thanks to the Hangout.Audio Graph Tool, available directly in your browser via a Windows or OSX computer, the Protocol Max can store equalization profiles to customize the sound output.

To download equalization profiles to the Protocol Max, you can use this online guide.

EQ function of the CRINEAR Protocol Max

CrinEar Protocol Max: A refined aesthetic

The solid aluminum casing coupled with tempered glass that allows a view of the Protocol Max circuitry offers a most pleasing aesthetic.

The aesthetics of the CRINEAR Protocol Max

CrinEar Protocol Max overview

CrinEar Protocol Max overview
1USB-C input
23.5mm single-ended jack output
34.4mm balanced jack output
4Playback control
5Eco/Boost mode selection

Technical characteristics

Specifications
Product typePortable DAC and headphone amplifier
DAC chip2x CS43198
OPA2x SGM8262-2
Input1x USB-C
Outputs1x Single-ended Jack 3.5mm
1x Balanced Jack 4.4mm
Supported sample ratePCM up to 32bit 768kHz
DSD up to DSD256
Balanced 4.4mm jack output power@ 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)
Single-ended 3.5mm jack output power@ 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 0dBFSJack 4.4mm: 132dB
Jack 3.5mm: 127dB
THD+N @ 1kHz 0dBFSJack 4.4mm: -118dB
Jack 3.5mm: -116dBdB
Crosstalk @ 1kHz -6dBFSJack 4.4mm: -116dB
Jack 3.5mm: -68dB
Output impedanceJack 4.4mm: < 0.6Ω
Jack 3.5mm: < 0.3Ω
General
ColorBlack
Package1x CrinEar Protocol Max
1x USB-C Cable
1x USB-C to USB-A Adapter
 
Data sheet
InputUSB
OutputJack 3.5mm
OutputJack 4.4mm
DAC / ADC ChipCS43198
Max sampling rateDSD256
Max sampling rate384kHz
ColorBlack
ClassN/A
NetworkingNo
Remote ControlNo
 
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1 reviews
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petit DAC ampli casque performant
Sur les conseils avisés d'audiophonics, j'ai fait l'acquisition de ce tout petit DAC ampli casque pour un sennheiser HD560s. Et j'ai bien fait de suivre leurs conseils. Ce petit DAC s'installe en moins de temps qu'il ne faut pour l'écrire avec un câble USB c très spécial...et joli. Il est tressé! Je l'ai acheté pour l'utiliser avec mon smartphone Samsung Galaxy a53 5G. L'adaptateur USB c jack 3,5 mm (assymétrique donc) que j'avais ne délivrait pas une puissance suffisante pour ce casque, ni même pour mon grado 80. Avec ce petit DAC ampli casque, et surtout avec le mode boost, la puissance est au rendez-vous et la qualité du son est très bonne. Je ne suis pas un expert mais tout me semble bien équilibré. Basses présentes mais pas de manière excessive, les voix ressortent très bien. Je n'ai pas encore tester les différents modes de qualité de son proposés par spotify mais en mode "automatique" le son est vraiment très bon que ce soit avec le sennheiser (impédance 120 ohms!) ou avec le grado (impédance 38 ohms). Bref un bon achat. Et encore merci à Audiophonics pour ses conseils car j'hésitais avec un modèle plus cher et ils m'ont conseillé celui-ci.
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This review has been posted for CRINEAR PROTOCOL MAX Balanced Portable DAC Headphone Amplifier 2x CS43198 PCM 32bit 384kHz DSD256
 
CRINEAR PROTOCOL MAX Balanced Portable DAC Headphone Amplifier 2x CS43198 PCM 32bit 384kHz DSD256
The CrinEar Protocol Max portable headphone amplifier and DAC is a device based on audiophile components to meet the needs of a demanding audience....

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