Audio-GD R-27 MK2
Audio-GD R-27 mk2 Audio-GD is a discrete balanced R2-2R ladder DAC with an integrated class A balanced headphone amplifier and a class A balanced pre-amplifier. All elements are built with the greatest care and classical discrete design with today’s capabilities and standards..
Unique R2R correction technology. Digital signal processing driven by high-speed FPGA supporting FIFO buffering and re-clocking. Software up-gradable design enables future new capabilities and improvements.
HIGHLIGHTS
- USB fully integrated and Isolated with internal FPGA deriving clocks from Accusilicon’s (similar to DI20 architecture)
- I2S HDMI isolated input
- IN2 coaxial input accepts external 10MHz clock input ( 75 ohms )
- Firmware up gradable design
- True balanced design, discrete push-pull R2R DAC design
- Improved clock timing of internal master clock regeneration.
- Discrete analogue output stages
- DC coupled design (No capacitors in signal path)
- Non- feedback ACSS analogue output control
TECHNICAL SPECIFICATIONS
| S/N Ratio | >120DB |
| THD+N | <0.03% |
| Gain | L mode : +13DBH mode : +26DB |
| Channels imbalance | < 0.05DB |
| Frequency Breadth (Whole unit) | 20Hz – 20KHz (< – 0.25DB)20Hz – 150KHz (< – 3DB) |
| Output Level | Preamp Variable output : 18V max (XLR) / 9V max (RCA)DAC Fixed output : 2-5 V (XLR) /1-2.5V ( RCA) |
| Headphone amp Output Power (Balanced class A ) | 25 ohm: 15W 40 ohm: 10W 100 ohm: 4W 300 ohm: 1350mW |
| Headphone amp Output Power (Single-ended class A ) | 25 ohm: 4W40 ohm: 2500mW100 ohm: 1000mW 300 ohm: 350mW |
| Digital Input Sensitivity | 0.4-1 Vp-p(75 Ohms, Coaxial)19 dBm (Optical) |
| XLR input impedance | XLR : 94K ohm |
| Support Operate Systems (USB) | Windows, OSX, Linux, ISO |
| Support Sampling | USB & IIS : 44.1kHz – 384kHz /32Bit DSD64-512AES/EBU and Coaxial mode: 44.1kHz – 192kHzOptical mode: 44.1kHz – 96kHz |
| Power Requirement | 1 Version 100-120V AC 50/60 Hz2 Version 220-240V AC 50/60 Hz |
| Power Consumption | 42W |
| Package Weight | Approximately 12kg |
| Dimensions | W430 X L445 X H80 (mm) |
| Accessories | AC power cord X1 USB cable X1 Metal remote X1 |