AUDIO-GD R2R 7 HE Ladder DAC Balanced ACSS 32bit/384kHz AMANERO I2S HDMI

AUDIO-GD R2R 7 HE Ladder DAC Balanced ACSS 32bit/384kHz AMANERO I2S HDMI
The Audio-GD R2R 7 HE is a discrete Symmetrical DAC with an exceptional R2R Ladder design. With its 4 D / A converters and the integration of ACSS, I2S and USB Amanero, this DAC will offer you an exceptional sound reproduction.

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Shipping date: 19-01-2021.

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DAC Symmetric Discrete / R2R LADDER DAC / 4x R2R DA-7 Audio-GD R2R 7 HE

Among the best DACs in the world

Audio-GD is evolving its range HE, composed of its most high-end products. They have the longest design and testing time since the brand's inception.

This model R2R 7 HE now has 4 Ladder DAC DA-7 R2R fully symmetrical and discrete, allowing support of DSD and PCM 32Bit / 384kHz in the best way.

The new FPGA (Field-Programmable Gate Array) processor used is the same as that used in very high-end DACs, such as the popular ROCKNA WAVEDREAM DAC. Your DAC R2R 7 HE can always be updated at the firmware level, and therefore never be obsolete.

The HE range offers a more detailed sound reproduction, a greater dynamic range, and a wider and deeper sound stage.

Flawless components and connectivity

Like its predecessors, the Audio-GD R2R 7 HE uses the brand's Amanero USB technology supporting resolutions up to 32bit / 384kHz.

The R2R 7 HE has 6 inputs: BNC / RCA Coaxial / Optical/ HDMI I2S / RJ45 I2S / USB. Each is equipped with the right interfaces to offer the highest sound quality. On the output side, the R2R 7 HE offers XLR, RCA and ACSS.

Each product is tested with professional equipment, the Audio Precision SYS-2722, to ensure maximum quality and reliability.

A largely improved DSP

The great novelty of this R2R 7 HE is probably its brand new DSP and its special design. It is a two-channel digital interpolation filter and a data processor for digital audio. This DSP offers advanced features for high performance applications up to 450MHz. The DATA and Master-Clock processing is done without jitter. Thus, this HE-7 covers a wider sound stage and allows you to enjoy precise and neutral sound reproduction of your files. The DSP also avoids digital noise.


When high fidelity rhymes with Audio-GD

32bit / 384kHz / R2R DAC / Copper OCC / TCXO / AMANERO / FPGA

The R2R 7 HE is designed around 4 R2R converters DA-7 working in parallel with a purely symmetrical class-A ACSS discrete circuit, without any PDO, with separate power supply.

Moreover, with its excelslow USB Amanero and the management of HDMI and RJ45 I2S, the DAC supports resolutions up to 32 bit / 384kHz. So you can enjoy all your high-resolution files without any worries.

Audio-GD R2R 7 HE


Audio-GD has its own technology signature called ACSS for "Audio-GD Current System Signal". Thanks to the expertise and know-how of the firm, this technology offers a less colored, more detailed sound, and an unparalleled neutrality. Every professional engineer of the brand is, in addition to being experienced, a passionate of HiFi and Audio like you and us.

4x DA-7 R2R

These 4 analog digital converters make use of the recognized and confirmed "R2R conversion". The latter consists in using directly the bits of the digital signals to reconstruct the analog signals, all this acting on a network constituted solely of resistors having a given value (R) et its double (2R), without going through an over-sampling phase./ P>


A food of size

If the 4 DA-7 R2R and the excellent analog output stage impress on this R2R 7 HE, it is not left behind on the power side, far from it. Indeed, to ensure optimal operation of the DAC and to promote sound reproduction, there are no less than 21 power units that feed the device. 19 high-quality PSU class A parallel groups and a dedicated dual-stage DC block allow the HE-7 to provide its own power supply for deep, neutral feedback. The dual stage PSU is particularly important for digital components, to keep the jitter low and not degrade your music.

Froms, Audio-GD integrates the "Power Regenerative" technology in its R2R 7 HE-7 to block power line interference. In this system, the AC signal is first converted to DC and then regenerated to produce a perfect sine wave.

Diagram Operation Power Supply Audio-GD R2R 7 HE


Connectors: Inputs
1x BNC24bits 192kHz
1x RCA Coaxial24bits 192kHz
1x Optical24kits 94kHz
1x HDMI I2S32bits 384kHz
1x RJ45 I2S32bits 384kHz
1x USB32bits 384kHz
Connectors: Outputs
c "> Output Impedance
Signal Noise Ratio> 120dB
Output LevelRCA 2.5V / XLR 5V / ACSS 2 + 2MA
Frequency Response20Hz - 100kHz (<-0.1dB)
Input sensitivity0.5V pp (75Ω Coaxial) / 19dBm (Optical) / RJ45 and HDMI (3.3V)
Sample rateSPDIF up to 192kHz / Optical up to 96kHz / I2S & USB up to 384kHz
Transformer power295W (4 units)
USB compatible iPhone / iPadvia Apple Camera Kit
Food220V - 240V AC 50 / 60Hz
WeightAbout 19kg
Dimensions430 x 450 x 125mm
Chassis Material
AccessoriesPower cable
Data sheet
InputI2S via HDMI
Max sampling rateDSD512
Max sampling rate384kHz
ClassClass A / AB
Remote ControlNo
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AUDIO-GD R2R 7 HE Ladder DAC Balanced ACSS 32bit/384kHz AMANERO I2S HDMI
The Audio-GD R2R 7 HE is a discrete Symmetrical DAC with an exceptional R2R Ladder design. With its 4 D / A converters and the integration of ACSS,...

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