睿志音响

	Wisdom in mind, enthusiasm at heart.

R2R 1 (2018 version firmware)
Real balance DAC
Fully Dedicated Discrete R-2R resistor ladders technology applied
OS/NOS modes selection on front plate
USB / HDMI inputs include
Built in 4 groups DA-8 R-2R modules
Built in FPGA processor , reject the jitter
DSD , DXD support from USB / HDMI
32bit / 384K Asynchronous Transfer Amanero Combo 384
Built in OCC , and Hi-End parts
　

R2R 1 can match with NFB-1AMP working flawless, buy the combo R2R 1 + NFB-1AMP get discount.
Click to view NFB-1AMP

Summarize

Use Manual

Specs

Custom Option

Shipping Cost

Please not:
The R2R 1 had built in fully dedicated discrete R-2R resistor ladders DA modules. Based on some users feedback from Audio-gd other's R-2R products, it need longer burn in time to achieve the best sound quality and performance.
Even it had burn in over 100 hours before shipping , but we are advice customers burn in it more than another 500 hours.
You can power on it without playing music if you are at home.

Setting button on front plate:
Display N : NOS mode.
Display O : OS mode.

       The OS mode had include the 8x, 4x, 2x oversampling and a classis NOS mode. The sound flavor warmer while the oversampling lower, and the classis NOS mode had warmest sound favor.

        The NOS mode with push into the setting button had different arithmetic to the classis NOS mode. There are 3 different mode available , the sound not on warm side but smooth .
Users can burn in the unit more than 300 hours , try different modes while button push into or pull off, find the best sound for favorite, in future just through change the button state can had two different sound flavors .

         Even users had not change any inside setting, change the button state, the sound still had change obvious.

          R2R 1 had not applied any mute switches for keep the signal without degrade , So switch the Setting button and Select, we are advice turn the amp lower volume.

The display auto dark : Push into the jumper is auto dark .Please operate the jumper while the unit power off .

Jumpers setting

　

Note 1:    ON mean the jumper push on.
              OFF mean the jumper pull off.
              Please power off the unit while change the jumpers for avoid the chip damage by the static electric .
              For safe, user must pull off the AC power cable before take off the top cover.

Note 2:    If the HDMI input signal not enough good, ( it may cause by the source or the HDMI cable quality or the RF interrupt to the HDMI cable), the sound may had noise or distortion or no sound in some sampling, try to push into the jumper on DITH pins.

Setting button set display "O"
Jumpers Number	Jumper Setting				Functions describing
S3	Inactive (OFF)		Active (ON)		PLL setting
S2	Note 2
	8X OS	4X OS	2X OS	NOS	The sound will become smoother and warmer while setting lower oversampling.Default setting in the 8X OS which is the best neutral sound.
S7	(OFF)	(ON)	(OFF)	(ON)
S6	(OFF)	(OFF)	(ON)	(ON)
S4	Reserved
S5	Reserved

Setting button set display "N"
Jumpers Number	Jumper Setting				Functions describing
S3	Inactive (OFF)		Active (ON)		PLL setting
S2	Note 2
S7	Reserved
S6	Reserved
	Mode 1	Mode 2	Mode 3	Mode 3	Different sound flavors between different modes.
S4	(ON)	(OFF)	(ON)	(OFF)
S5	(ON)	(ON)	(OFF)	(OFF)

HDMI definitions :
Please note: Don't hot push / pull of the I2S cable. Any time must power off the units then push or pull the I2S cable.
Pin 1 :        SDATA -
Pin 2 :        GND
Pin 3 :       SDATA +
Pin 4 :       SCLK +
Pin 5 :       GND
Pin 6 :       SCLK -
Pin 7 :       LRCK -
Pin 8 :       GND
Pin 9 :       LRCK +
Pin 10:      MCLK +
Pin 11:      GND
Pin 12:      MCLK -
Pin 13:      NC
Pin 14:      NC
Pin 15:      NC
Pin 16:      NC
Pin 17:      GND
Pin 18:      NC
Pin 19:      Auto on control （Without function in this product.）