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R2R-11 mk2


Real NOS discrete R-2R DAC design

Fully Discrete Transistors Headamp And Preamp All-In-One.

Output power rated at 3800 mW @25 ohm, driving most headphones easily.

4 fully discrete R-2R DA converters (2 per DA-8 board) implementing two push/pull decoders.

2 fully discrete native DSD decoders.

Fully discrete current signal transmission design.

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

The whole digital circuit is comprised of 3 CPLDs (programmable chips) supporting firmware update to improve sound quality in the future.

       

     

              
Please note: The product improve cause the inside or outside change without inform .
Summarize Use Manual Specs Custom Option Shipping Cost

Please note: The manufacturing process and design can be updated at any time without notification, bringing improvments and changes in specifications.
S/N Ratio


100db
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THD+noise


< 0.04%
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Frequency Breadth


20Hz - 90KHz (-3DB)
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 Output Level


 Headphone output : 10V RMS 
Variable output : 5V Max
Fixed output: 2.5V RMS (High gain)
Fixed output: 1V RMS (Low gain)
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Output power
(headphone.)


3800mW/25 ohm

2400mW/40 ohm

950mW/100 ohm

330mW/300 ohm

165mW/600 ohm
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Output impedance

2 ohm /  Headphone output
2 ohm / DAC output

Input Sensitivity


0.5 Vp-p(75 Ohms, Coaxial)
19 dBm (Optical)
Some TVs and gaming consoles may not have a sufficient levels to drive the SPDIF inputs
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Support Operate Systems (USB)
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Windows, MacAIOSALinux

Support Sampling   USB PCM model: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz , 192kHz, 352.8kHz,384kHz
USB DSD native mode: DSD64-512
 Coaxial model: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz
Optical model: 44.1kHz, 48kHz, 88.2kHz, 96kHz
Power Requirement
220-240V OR 100-120V  AC 50/60 Hz
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Power Consumption
15W
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Package Weight
4.5KG
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Product Weight
3.5KG
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Dimensions
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W240 X L280 X H85(MM, Fully aluminiumAwith feet, without protrusion ) 
Accessories
AC power cord            X1
USB cable                X1
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