AUDIO-GD R2R-11 MK2 DAC Headphone Amplifier Amanero 32bit 384kHz DSD512

AUDIO-GD R2R-11 MK2 DAC Headphone Amplifier Amanero 32bit 384kHz DSD512
The Audio-GD R2R-11 MK2 is THE Swiss army knife for audiophiles. Combining the functions of DAC, preamplifier and headphone amplifier, it will meet most needs. It features a discrete R2R NOS DAC, an Amanero 384 USB interface, a dual stage power supply, selectable digital filters and an MCU controller.

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Audio-GD R2R-11 MK2

DAC Headphone Amplifier Amanero 32bit 384kHz DSD512

Audio-GD R2R-11 MK2 DAC Amplificateur Casque Amanero 32bit 384kHz DSD512

The Audio-GD R2R-11 MK2 is THE Swiss army knife for audiophiles. Combining the functions of DAC, preamplifier and headphone amplifier, it will meet most needs. It features a discrete R2R NOS DAC, an Amanero 384 USB interface, a dual stage power supply, selectable digital filters and an MCU controller.

MK2 Version

This MK2 version benefits from several notable improvements, aimed at further enhancing the musicality and sound quality of the device.

  • Four 24bit R2R decoders (2 push-pull channels) and two native DSD decoders.
  • USB input with galvanic isolation.
  • Power supply with high quality R-Core transformer.
  • Nine groups of power supplies for the various components. The R2R modules and the analog output stages are powered by three groups of pure Class A PSUs. Three groups of ultra high speed PSUs and two groups of servo-controlled PSUs are used for the digital sections. The control module and volume use a separate PSU to avoid contamination of the digital and analog components.
  • The unit has two gain levels: the 12dB gain allows the R2R-11 MK2 to accompany headphones with a sensitivity of over 95dB and the 22dB gain is suitable for the most demanding headphones. Two jumpers inside the unit allow an additional 6dB gain boost.
  • Relay volume control for perfect channel balance and transparent sound. Resistors with a tolerance of 0.1% mounted in parallel for an effective tolerance of 0.05%.
  • Two internal jumpers allow, optionally, to obtain a warmer sound.
  • Discrete transistor amplifier design, using ACSS technology.
  • Neutrik headphone output.

USB Amanero Combo 384

Equipped with an Amanero Combo 384 USB interface rather than a USB32, it offers both optimal performance and compatibility. It supports sampling rates up to 32bit 384kHz PCM, as well as DXD and up to DSD512. Its design also allows it to enjoy an extremely low jitter level.

Non-Feedback & ACSS

The R2R-11 MK2 offers optimal performance thanks to carefully selected components. Thus, in addition to supporting DSD / DXD and sampling rates up to 32bit 384kHz, it benefits from the NFB (Non-Feedback) technology developed by Audio-GD on the ACSS stage. This allows the converter to offer a lesser sound coloration and consequently a faithful restitution, a very low distortion and a great linearity. You thus gain in dynamics, details and neutrality.

DA-8 DAC

The R2R-11 MK2 features four discrete R2R DACs, two per DA-8 module, specially designed and optimized for converting digital to analog signals. These allow support for output sampling rates up to 32bit 384kHz and a signal-to-noise ratio of 100dB.

High-end components

All components have been carefully selected to offer a device that is as efficient as it is durable.

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Technical characteristics

Specifications
Product typeDAC
Headphone amplifier
Inputs1x USB-B
1x Optical Toslink
1x Coaxial
Outputs1x Stereo RCA
1x Jack 6.35mm headphone output
SNR100dB
THD+N< 0.04%
Frequency response20Hz - 90kHz (-3dB)
Output levelHeadphone output : 10Vrms
Variable level  : 5V Max
Fixed output : 2.5Vrms (high gain) / 1Vrms (low gain)
Headphone output power3800mW @ 25Ω
2400mW @ 40Ω
950mW @ 100Ω
330mW @ 300Ω
165mW @ 600Ω
Output impedanceHeadphone output: 2Ω
DAC output : 2Ω
Input sensitivityCoaxial 75Ω : 0.5Vp-p
Optical : 19dBm
USB CompatibilityWindows, Mac, iOS, Linux
Supported sampling ratesUSB : PCM up to 32bit 384kHz, Native DSD up to DSD512
Coaxial : PCM up to 24bit 192kHz
Optical : PCM up to 96kHz
General
Supply voltage220-240VAC 50/60Hz
100-120VAC 50/60Hz
Consumption15W
Dimensions280 x 240 x 85mm
Weight3.5kg
Housing materialAluminum
ColorBlack
Package1x Audio-GD R2R-11 MK2
1x Aluminium remote control
1x Power cable
1x USB cable
 
Data sheet
InputSPDIF
InputOptical
OutputJack 6.35mm
OutputRCA
OutputACSS
ColorBlack
Remote ControlNo
 
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Average votes
5.0 / 5
2 reviews
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 5/5
Date :
acoustiquement délectable
Acheté par curiosité audiophile pour cette technologie sans suréchantillonnage (merci à David et Grégory pour leurs conseils), j'en suis à présent totalement séduit. Mon convertisseur PS audio stellar gain est battu, ne m'offrant pas cette aération simple et claire, cette respiration pas spécialement dynamique mais qui respecte la sonorité d'origine des enregistrements. Ce n'est pas redécouvrir ses CDs comme on le dit souvent, c'est découvrir la musique comme elle a été jouée et chantée. Le plus frappant est ce naturel acoustique des voix et instruments, dès les premières minutes d'écoute. Et ce n'est que du RCA et du coaxial (et de l'USB pour mon ordi qui a tout de suite reconnu le DAC). J'écoute peu au casque et essentiellement via mes enceintes colonnes, des CDs et du flac sur disque dur externe. J'ai branché les jumpers fournis (il faut des doigts fins ou une pince à épiler !) pour le "warmer sound" préconisé par Audio GD, résultat plus fluide me semble-t-il. Pour éviter de légers "plocs" possibles à l'allumage, je branche d'abord le dac puis l'ampli (Allo Volt +D ou Sabaj A20A première mouture), pour éteindre, faire l'inverse.
Avis aux amateurs qui peuvent se permettre cet achat, émotion musicale au rendez-vous garantie !
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This review has been posted for AUDIO-GD R2R-11 MK2 DAC Headphone Amplifier Amanero 32bit 384kHz DSD512
Note :
 5/5
Date :
Phénoménal
Après presque 500h, le constat est simple: cet appareil peut tenir tête ou même humilier des appareils 4x plus chers. La scène sonore est large et profonde, le rendu est fouillé, les timbres sont justes et la dynamique, impressionnante. Le son est tout est en douceur et avec un naturel réjouissant, rien de forcé ou de fatigant. Tout le savoir fait de Kingwa (concepteur) est concentré dans cet appareil au rapport qualité-prix que l'on ne rencontre que très rarement. Un coup de maître, rien de moins.
 (0)
 (1)
This review has been posted for AUDIO-GD R2R-11 MK2 DAC Headphone Amplifier Amanero 32bit 384kHz DSD512
 
AUDIO-GD R2R-11 MK2 DAC Headphone Amplifier Amanero 32bit 384kHz DSD512
The Audio-GD R2R-11 MK2 is THE Swiss army knife for audiophiles. Combining the functions of DAC, preamplifier and headphone amplifier, it will meet...

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