Owner’s experience: Let’s talk about Lezhibang. You know this brand from the contact with sound card products. Over the years, all you can see is Lezhibang’s insistence. As the first sound card brand developed by China’s independent technology, Lezhibang is guiding the appreciation of HIFI music. Always work hard and silently persist. Fearless and impetuous, without using external forces, using their own inherent characteristics, step-by-step technological upgrades and innovations show their strength, and therefore I have liked this brand for many years.
Intuitively, Longka is very beautiful, has enough fashion sense, and has the urge to start. Of course, the strength is really good. It is a good product that many music fans have passed on. Established, so there can definitely be actions to start.
●product description
Dragon（Dragon）, The supernatural fetish, the king of beasts. Cao Cao of the Three Kingdoms said:“The dragon can be large and small, and it can rise and hide; when large, it thrives in the clouds, while small is hidden; when rising, it soars in the universe, and when it is hidden, it lurks in the waves. The spring is deep now, and the time of the dragon is changing, and people still have aspirations and cross the world. The dragon is a thing, a hero comparable to the world……”
Listen（Monitor）, Gathering the essence of many years of technology and audio research of Lezhibang. The USB3.0 power supply technology makes the compact metal body show its powerful driving force. 32Bit/384kHz establishes a new future standard for USB audio cards. The line and earphone output can be switched freely; the digital knob volume control fully demonstrates the people-oriented design concept. Optional external power supply or battery power supply, line, high and low impedance headphone independent interface, optical fiber, coaxial, MULINK output, ASIO playback, DTS and Dolby source code output……, omnipotent application environment, 112dB output rich in music flavor, domineering and exposed, who is it for me?
• advanced chipset architecture
High-definition chipset independently developed by MUSILAND Audio Labs, powered by ICU（I/O control unit, I/O control unit）MU1010 and APU（Audio processor unit， audio processing unit）MU6020 is composed of a chipset structure similar to the north-south bridge of a computer motherboard, and the ICU and APU communicate through a high-speed parallel bus.
MU1010 uses a general-purpose programmable processor（DSP）Realize, support true USB2.0 high-speed transmission, and the instantaneous transmission rate can reach 480Mbps. With MUSILAND''''''''''''''''''''''''''''''''s dedicated driver, it can transfer up to 16 channels of audio raw data to the APU for processing via a high-speed parallel bus. The high-speed cache and multi-layer state machine processing mechanism enable the MU1010 to reach a system priority level similar to that of PCI devices, allowing USB high-speed data transmission to achieve real real-time performance.
MU6020 uses general field programmable gate array（FPGA）accomplish. MU6020 supports true 32Bit audio data processing, and the sampling rate is as high as 768KHz. When loading professional clock synthesis algorithms, it uses the DCM inside the APU（Clock management module）The generated audio clock restores the sound file, and the harmonic distortion is close to the limit of human hearing. The MU6020 integrates a precision S/PDIF transmitter, which can output popular digital signals such as PCM, Dolby Digital, and DTS. Since this S/PDIF transmitter is driven by a precision clock, the output signal jitter is very low, which fully meets the accuracy required by the audio laboratory for test equipment. The next-generation MULINK interface can output 32Bit high-definition audio data to an external decoder.
• practical functional interface
The Monitor 02 US Dragon sound card has high-quality stereo line output, headphone output, optical output, RCA coaxial output, and MULINK high-definition audio output interface.
The Monitor 02 US Dragon sound card has free switching of line and headphone output, and digital knob volume control, which fully demonstrates the people-oriented design concept.
The sound card comes with 2 sets of headphone output interfaces, which are suitable for connecting headphones or earplugs with different impedances and sensitivities for personal music appreciation purposes.
Monitor 02 US Dragon sound card has high-quality optical digital, RCA coaxial output, BNC coaxial output interface, which can output pure stereo PCM coded signals and multi-channel Dolby Digital（AC-3）, DTS digital signal, you can get a better music appreciation effect by connecting an external advanced audio decoder; you can also connect to an AV system with decoding function to experience the immersive surround sound effects of watching DVD blockbusters, and enjoy unprecedented Cinema effect. You can also connect MD devices for digital music transcription.
Monitor 02 US Dragon sound card''''''''''''''''''''''''''''''''s optical digital, RCA coaxial output, supports MMDI interface, and can be seamlessly connected with MUSILAND''''''''''''''''''''''''''''''''s decoder.
The MULINK high-definition audio output interface of the Monitor 02 US Dragon sound card can be connected with the MUSILAND decoder to transmit jitter-free high-definition audio formats, and its audio quality far exceeds the traditional S/PDIF interface.
Monitor 02 US Dragon sound card uses new power processing technology and headphone amplification technology, using USB self-powered, can provide excellent sound quality and powerful headphone driving force. It can be used in desktop or notebook computers with different chipsets, and is compatible with USB3.0 power supply systems.
• high-quality audio features
The Monitor 02 US Dragon sound card supports audio processing up to 32Bit/384KHz format, and uses a digital-to-analog conversion chip with a signal-to-noise ratio of up to 112dB and a dynamic range to provide high-fidelity sound quality analog output effects.
Due to the use of the new technology POWER-UP high-precision power supply, and multi-stage filter circuit processing, the USB interface voltage is first boosted, and then processed cleanly, ensuring that the computer USB interface can provide pure power supply characteristics. Choose external power supply or battery power supply.
Lezhibang''''''''''''''''''''''''''''''''s unique balanced analog filter amplifier circuit provides a good balance of high resolution and musicality, while portraying the details of the sound as much as possible, while ensuring the sound durability.
Two sets of high-efficiency headphone jacks, with high output swing and high current output characteristics, can drive all kinds of headphones with different impedances and sensitivities more flexibly.
The digital output of the Monitor 02 US Dragon sound card uses asynchronous FIFO to output digital signals. In this way, the on-board accurate clock cooperates with the DCM inside the FPGA to reform the digital signal timing, thereby reducing the unique jitter of the S/PDIF format. Enhances the transmission quality of digital signals.
Monitor 02 US Dragon sound card''''''''''''''''''''''''''''''''s MULINK high-definition audio output interface is managed by the FPGA''''''''''''''''''''''''''''''''s DCM in real time. With the change of sampling rate, it synchronizes and outputs the clock to the decoder with the data. In this way, the data and clock do not need to be complicated. Synchronization, no need for clock recovery operations. Therefore, it is basically jitter-free transmission, which can transmit the audio details of the high-definition era without loss. In addition, data up to 32Bit is also unattainable by the S/PDIF specification.
The Monitor 02 US Dragon sound card also supports ASIO, providing ultra-low audio latency.
• Flexible software support
Monitor 02 US Dragon sound card can provide ASIO, WDM support and mainstream operating systems Windows XP, Windows VISTA, Windows7, Windows8, etc. by installing a unique driver developed by Lezhibang.
You can also continue to optimize and update the driver program by Lezhibang in the later period, so that the Monitor02 US Dragon sound card can play a more excellent audio performance.
●Product Image
●Typical parameters
• analog output
Dynamic Range（D/A）: 112dB
Signal-to-noise ratio（D/A）: 112dB
Total harmonic distortion（D/A）: 0.005%
Frequency response（20Hz～20KHz）: +-0.1dB
Output level: 2V rms
Output impedance: 10KΩ
Headphone jack 1 output power: 120mW/RL=300Ω; 180mW/RL=100Ω
Headphone jack 2 output power: 260mW/RL=32Ω
• digital output
Dynamic range: 140dB
Signal-to-noise ratio（A weighting）: 140dB
Total harmonic distortion: 0.0001%
Frequency response（20Hz～20KHz）: +-0dB
• other
Input interface: USB2.0 or USB3.0, voltage greater than 4.5V, current greater than 500mA, external power supply voltage 5V~12V.
Power consumption:≤2.5W
Product color: black
Shell material: aluminum
Dimensions（case）: 98x86x25（mm）
Weight: 208 g
●interface
1 pair of RCA line output interface（stereo）
1 3.5mm headphone output interface
1 6.25mm headphone output interface
1 12mm MULINK output interface
1 square port optical fiber digital output interface
1 RCA digital coaxial interface
1 type B USB input interface
1 external power supply or battery power supply interface
●Main features
Stereo analog output
USB2.0 high-speed transmission
USB3.0 power supply
32bit/384kHz analog output
32bit/384kHz digital output
Digital output PCM/Dolby Digital/DTS format
Support ASIO
Support MUSILAND MMDI interface
The output sampling rate is manually set
Headphone, line output control panel manual switch
Support digital knob volume control
Driver supports Windows XP/VISTA/7/8 system
●Product accessories
1 main sound card
One USB3.0 data line
One USB2.0 data line
A warranty card
A quick installation guide
A drive CD