HOLO Audio Spring 3 R2R DAC 40W Audio Decoder (L2 with Preamp Module and Standard USB Module)

HOLO Audio Spring 3 R2R DAC 40W Audio Decoder (L2 with Preamp Module and Standard USB Module)

Version Introduction:
There are L2 and L3 for the Spring 3 series. And you can choose the versions with an optional preamp module.

The power capacitor of L2 is custom-made, and its USB module is a standard one. L2 comes with a remote control.

Based on L2, the DAC module of L3 is manually selected, and its USB module is an enhanced one. The transformer is changed to an O-type transformer made of flat copper winding. The power cord in the L3 machine is made of pure silver, and its fuse is also upgraded.

Download USB Driver & Firmware:
https://pan.baidu.com/s/1loiHx7UurNAGDbzeDkJftw?
Password: 8888

Attention:
WIN7 users must have KB3033929 patches installed, otherwise your system will not recognize the driver's digital signature. If you are a user who has automatic update enabled, WIN7 will automatically patch it for you. And if it is not automatically updated, please patch it manually. WIN10 users do not need the patch.

Description:
Spring 3 is a new generation DAC of fully discrete resistor network (commonly known as R2R). Relative to its predecessor the "Spring 2", the following improvements have been applied.

Features:
- A new generation of linear compensation technology. It's a better solution to the resistance and accuracy errors caused by the switching components and the PCB. After compensations have been applied, the equivalent accuracy will be 0.00005%.
- The new generation of de-glitch technology can provide a full range without increasing the noise floor or other adverse effects.
- Based on this new generation of technology, Spring 3 can provide a SINAD of >112dB and a dynamic range of >128dB, which represents the performance limit reached by today's most advanced R2R architecture DAC.
- Using the ultimate performance of PLL+FIFO technology, it provides 0.1Hz third-order low-pass ability to inhibit jitter. It also uses a high-performance femtosecond VCXO as the PLL clock source. Under the premise of being almost immune to the front-end jitter, it can also lock up to 1.5us-2us at 1KHz signal with high jitter.
- The USB interface uses proprietary firmware with ultra-low latency, a highly reliable data transmission, and ideal USB eye pattern measurements that contribute to 2-4 times higher performance than official firmware.
- A single, independent HDMI-compatible-I2S input interface is provided, which has a four-way independent circuit, as opposed to standard LVDS chip, making I2S clock signals subject to lower interference and lower jitter. In addition, the I2S input can be configured with a specific pin-out configuration, making it compatible with most of the HDMI-compatible-I2S digital devices on the market.
- Optional preamp module (installed in factories): A fully balanced, fully discrete analog pre-amplifier. It provides 84 steps, and each step is 1db of volume control.

Package Included:
- 1 x Set of DAC

Packaging Details:
- G.W.: 9kg