R-28 NOS
　

Fully Balance Discrete Transistors Headamp And Preampamps All In One

8 group fully discrete R-2R DA converters (4 pcs DA-8 board) implementing balanced mode.

4 fully discrete native DSD decoders work in balanced mode .

32bit / PCM384K /DSD512 asynchronous transfer using the Amanero 384 usb input.

All inputs with galavanic isolator

Fully discrete current signal transmission design without OPA in signal path.

Built in real balanced headphone amp max output power achieve 9500 mW that can drive most headphone easy.

Support firmware update to improve on sound quality.

All digital process mode settings accessible by buttons on front  (No need  to open the chassis)

Custom order options:

Option 1:Custom order replace the ACSS output by RCA outputs price is 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. For the sensitivity lower than 85DB headphone, customer can to boost 6-12DB gain, in total 28-34DB gain, price is USD15.