睿志音响

	Wisdom in mind, enthusiasm at heart.

R-28 (Edition 2020)

Fully Discrete R-2R Resistor Ladders decoder

Fully Discrete DSD Native decoder

Fully Balance Discrete Transistors Headamp And Preampamps

All In One

Chassis Size 360*360*85 MM (W*D*H)

All Digital Settings accessible By Buttons On Front Plate (No need to open the chasis).

　

Built In 4 Groups of DA-8 V2 Modules
Built In FPGA Processor to Reject Jitter
DSD , DXD 32bit / 384K Support From USB / HDMI
Built in real balanced headphone amp.
Built with OCC and Hi-end parts

Summarize

Use Manual

Specs

Custom Option

Shipping Cost

Specifications tested by OS8 mode and already through sound tuned, we always improve for better real like , musical and analog sound ,improvement may result in changes in specifications and design without notice.
S/N Ratio	>120DB
THD+N @ 1KHz	<0.02% (Full Scale )
THD+N @ 20Hz-20KHz	<0.04% (Full Scale )
Gain	L mode : +7DB H mode : +17DB
Volume characteristic
Channels imbalance	< 0.05DB
Frequency Breadth	20Hz - 20KHz (< - 0.5DB)
Output Level	Headphone output : 19V RMS (balance) Preamp Variable output : 19V RMS (balance) DAC Fixed output : 5 V RMS (balance)
Headphone amp output power level (Only for headphone over 15 ohms.) Balanced mode	9500mW / 25 ohm 8000MW / 40 ohm 3500MW / 100 ohm 1200MW / 300 ohm 600MW / 600 ohm
Output impedance	1 ohm / Headphone output 5 ohm / DAC / Preamp output
Input Sensitivity	0.5 Vp-p(75 Ohms, Coaxial) 19 dBm (Optical)
Support Operate Systems (USB)	Windows, OSX, Linux, ISO
Support Sampling	USB & IIS : 44.1kHz - 384kHz /32Bit DSD64-512 Coaxial mode: 44.1kHz - 192kHz Optical mode: 44.1kHz - 96kHz
Power Requirement	1 Version 100-120V AC 50/60 Hz 2 Version 220-240V AC 50/60 Hz
Power Consumption	35W
Package Weight	Approximately 8.5KG
Dimensions	W360 X L360 X H85(MM, Fully aluminium )
Accessories	AC power cord X1 USB cable X1