Sample rate, oversampling and non-oversampling: https: //pan.baidu.com/s/1mifMAta
The user can read this article, to learn more about how to select the sampling mode
Instructions for use: http://pan.baidu.com/s/1qXWM9aO
Software Setup Manual: http://pan.baidu.com/s/1b6QHoq
USB driver WIN10: http://pan.baidu.com/s/1nvrVMPV
USB drive WIN7 / 8: http://pan.baidu.com/s/1mhR92m0
New firmware for USB (16.92): http://pan.baidu.com/s/1slGkPrR
USB firmware refresh method: http://pan.baidu.com/s/1dEOZgit
Please note that just only brush the firmware, if you use another firmware,this unit will not work
Re-invent the wheel. Yes, we invented a new wheel again. Although, the original round wheel is already a classic design. Obviously, I would not like any other designer, just for a maverick look and the invention of a triangle or a square wheel. This time, in order to get rid of the constraints of the DAC chip, I used discrete components to form the R2R DAC module. This module not only looks "cool". Performance and functionality beyond any existing DAC chip.
Can support DSR's R2R DAC. Spring is the world's first R2R DAC to support DSD, and is by far the only one. This is not the DSD into PCM after the digital analog conversion, but directly to the discrete components of the DSD digital analog conversion
Spring has a variety of sampling modes and flexible conversion mode
NOS mode, without digital oversampling, the original data directly to the analog conversion. NOS can avoid these problems because digital oversampling can produce time-domain distortions such as ringing effects. NOS will usually have a significant impact on other performance indicators, but the spring design can make the NOS mode also maintain a good performance indicators.
OS mode, make PCM oversampling to reach a higher frequency PCM, the DSD oversampling to a higher frequency DSD, and then digital analog conversion.
OS PCM mode, whether it is PCM input or DSD input, will be oversampled to PCM mode for digital analog conversion
OS DSD mode, whether PCM input or DSD input, will be oversampled to DSD mode for digital analog conversion
Quan's digital input interface, including, USB (ground isolation), RCA, BNC, AES, optical fiber, HDMI interface, I2S. All digital input interfaces support DSD (DOP mode). Spring analog output interface for the single-ended and balanced each group.
Spring has an upgrade option, the machine's 4 filter capacitors replaced Jensen 4700uF / 63V. For the sound effects will be more relaxed, transparent
Spring is a R2R structure DAC, and is different from the modern popular delta-sigma-type DAC, R2R in a clock can be restored within a sampling point of the analog value, and delta-sigma is oversampled after the high-speed digital 0 and 1 to represent an analog quantity. In contrast, the conversion structure of R2R is directly and purely, and delta-sigma is essentially a digital chip, high-speed 0 and 1 to switch the digital signal to low-pass filter to the analog signal process is prone to various problems, Resulting in digital flavor, but also in the process of oversampling will inevitably lead to some ringing distortion. But the R2R structure of the DAC, because of the need for high-precision resistor network, the cost is very expensive. The delta-sigma DAC is essentially a digital chip, so the cost is very low.
"Spring" including digital input interface, USB (ground isolation), RCA, BNC, AES, optical fiber, HDMI I2S interface.All digital input interface support DSD (DOP)."Spring" analog output interface for single-ended and balance the a group.Its support for the PCM and DSD sampling rate listed in the below.
COAXIAL1, COAXIAL2:PCM 44.1-192K (24bit)
OPTICAL, AES:DSD 64X （DOP)
USB:PCM 44.1-384K (32bit) / DSD 64-256X （DOP) / DSD 64-512X （Native)
I2S:PCM 44.1-384k (32bit) / DSD 64-512X
Size:16.9* 11.8*2.1 inches
1x Set of RCA (Single-Ended) Outputs
1x Set of XLR (Balanced) Outputs
1x AES/EBU Input
1x Coaxial Input
1x TOSLINK Input
1x BNC Input
1x HDMI/I2S(?) Input
1x USB Input