Audio-GD – R2R11- 2019 – Discrete Single Ended R2R Ladder DAC – PCM / DxD / DSD – Pre- & Headphone Amplifier
€348,-
Single Ended Headphone & pre- amplifier equipped with advanced R-2R high speed parallel processing CPLD corrected discrete ladder DAC.
All parts and components are selected based on excellent sonic and measurements performance. Components are (e.g. Vishay resistors, KOA transistors and NOVER capacitors) and the design (e.g. power supplies; discrete analogue output stages) were being selected after many years of experience and practices and are considered to perform and provide admirable sound quality.
Up to date with the latest technology, and ensuring peak performance. Up to date technology supporting high resolution including native DSD, DxD and hyper-modern Amanero USB input.
In stock
- More than 10 years of experience
- Products shipped from Netherlands (EU)
- Outside EU customers pay Excluding VAT price
- EU citizens pay including VAT (No custom fees)
- Premium service (trustpilot)
- Cheaper elsewhere? Contact us!
Note: Includes latest firmware release from Audio-GD released (Silent PCM sample rate switching)
Note: By default, the fixed position is deactivated for safety when used as a preamplifier. It can be reactivated by moving the jumper inside the device.
HIGHLIGHTS
- Discrete DAC single ended headphone- and pre-amplifier
- True NOS , R-2R discrete ladder DAC
- Built in pre- and headphone amp
- Built in 2 groups DA-8 R-2R modules with high speed CPLD correction
- Unique noise process technology will remove any digital artifact
- Native DSD and DxD Support
- Amanero Combo 384 USB interface
- Soldered with silver tin
- High quality ALPS volume potmeter
SPECIFICATIONS
| SPECIFICATIONS | |
|---|---|
| INPUTS | USB Amanero
Coaxial RCA SPDIF Optical Toslink |
| OUTPUTS | RCA Single Ended
6,35mm Jack headphone |
| S / N | 118dB |
| Output level | Headphone: 10V RMS / Variable: 5V Max / Fixed: 2.5V RMS (High Gain) / 1V RMS (Low Gain) |
| Headphone output power | 3500mW (25 Ohm) / 1800mW (50 Ohm) / 900mW (100 Ohm) / 300mW (300 Ohm) / 150mW (600 Ohm) |
| Headphone output impedance | 12Ω |
| DAC output impedance | 12Ω |
| Coaxial input sensitivity | 0.5Vp-p (75Ω) |
| Optical input sensitivity | 19dBm |
| Frequency response | 20Hz – 20kHz (-0.2dB) / 3Hz – 350kHz (Analog) |
| Sampling rate | USB up to 384kHz / Coaxial up to 192kHz / Optical up to 96kHz |
| Compatibility | Windows, Mac & Linux |
| Consumption | 12W |
| Weight | 2.5 kg |
| Dimensions | 180 x 220 x 55mm |
| Accessories | 1x AC power cable / 1x 1.4m USB cable |
R2R 11 LADDER DAC CHARACTERISTICS
- R2R-11 and R2R-15 are a breakthrough of discrete R-2R designed ladder dacs. Audio-GD are first in the market offering high performance discrete R2R in this price-range
- Two pieces DA-8 modules equipped with ultra-high speed CPLD processors to correct the discrete resistor ladder. Unique parallel processing to achieve superb performance
- Analogue section design based on Audio-GDs ACSS current driven technology; fully discrete transistors amplifiers
- Double stages ultra-low noise high speed power supplies offers a musical and black background and favorable transparency
- Built in Amanero combo 384 USB interface. Amanero offers satisfying USB compatibility and marvelous sound quality
- True NOS design. NOS is less sensitive to jitter and offering neutral sound. To avoid the digital artifacts exlusive noise rejection processing technology is applied
- Native DSD support. Avert switch noise when changing DSD / PCM.
- Built with purity components: KOA transistors / Vishay high low tolerance resistors , silver tin soldering and ALPS 27 volume potentiometer
- Exotic sound quality! Smooth, coherent and analogue.
- Option to set Neutral or Warm sound (Jumper setting) according to personal taste.
RESISTOR TOLERANCE
Some manufactures claim to achieve good performance becuase they use lowest tolerance ladder resistors. The following calculation example will cover this. At 16 bit the tolerance of 1/66536, 0.1% (1/1000) it is by far not enough to achieve decent performance. Even using resistors with 0.01% (1/10000) tolerance, lowest tolerance available today,cannot deliver the desired performance This is just 16 bit, imagine a 24 calculation! To process 24 bit resolution it would require resistors with a tolerance of 001%. This is purely theoretical; if this tolerance would exist the discreteness of the switch logic chips will already have too much internal impedance and will shake-up such design.The tolerance of the resistor will never solve Imperfections of a ladder.
The solution lies in the correction the ladder and not only depend on the tolerance of resistors. Its a combination of both: Ultra-low tolerance resistors controlled by a correction technology using very high speed with parallel FPGA processing.
USB SUPPORT
Download USB Amanero drivers for Windows 10
Download USB Amanero drivers for Windows 7 & 8
No drivers required for Linux and/or Mac OS
OSX 10.6+ and Linux with UAC2 compliant kernel
Microsoft Windows: KS/Wasapi/WDM/ASIO
| Weight | 2.5 kg |
|---|---|
| Dimensions | 220 × 180 × 55 mm |
| Brand |
6 reviews for Audio-GD – R2R11- 2019 – Discrete Single Ended R2R Ladder DAC – PCM / DxD / DSD – Pre- & Headphone Amplifier
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Matthijs –
Fantastic natural sound of a discrete R2R ladder dac.
This is insane for its money!
Thanks, great service
Kilian –
The ordered R2R 11 DAC/Preamp was delivered in under a week (quite fast for the distance). Contact via email was very friendly and questions were answered quickly and efficiently.
Thank you very much <3
Stefano R –
After nearly a year of listening, sorry that i write this so late, i don’t want to miss this DAC/Amp.
I tested some more DAC’s and headphone amps, but in my opinion the R2R11 is the best u can get for the money.
Big thanks
Stefan
Marco F. –
I ordered the Audio-GD – R2R 11 DAC at Magna Hifi 3 weeks ago on advice of a good friend.
As I live and work nearby, I asked Jos to collect it, rather than have it delivered. This was scheduled within a day.
While talking about the intended use as a single DAC rather than a head phone DAC/Amplifier, Jos suggested to change the 2019 setting on the Output. This was fixed in 5 minutes, while drinking a cup of coffee.
Asking about burn-in hours, Jos advised to extend them at home, which resulted in great sound within 3 weeks.
Thanks for the excellent service Magna Hifi !
Christian –
I received the Audio-GD RDR 11 and it sounds good!!
Thanks so much.
Peter K. from Germany (verified owner) –
Das passt schon Jos!
Der Sennheiser und der R2R 11 passen sehr gut zusammen!!!
Gain “L” reicht völlig aus, ich höre gerade das Beethoven Violinkonzert po.61 in guter Lautstärke mit Poti auf 12:00 – alles passt von der
Lautstärke und Qualität.