R-27
DAC+Headamp+Preamp all in one, can work as decent DAC / headamp / preamp
Built in R-8 DAC
Built in Master 9 Pure class A headamp/Preamp
　

Built in real balanced pure class A headamp & preamp
Pure class A power 9000mW@40ohm
Dual gain modes can drive high/low sensitivity headphones
Built In 4 Group DA-7 V2 Modules
Built In FPGA Processor to Reject Jitter 
USB / HDMI support DSD native and DXD

Custom order options:

Option 1:Custom order replace the ACSS output by RCA outputs USD5.

Option 2: Custom order High Gain model for the HE6 and low sensitivity headphones:
      The unit default had 12DB on low gain for drive the headphone which has over 95DB sensitivity, and 22DB on high gain, already enough to drive the HE6 which has around 85DB sensitivity headphones.