Sword of Moye, Music of the Nation, Moye 5.1 sound card, 398 yuan, landed in Xi'an

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Sword of Moye, Music of the Nation, Moye 5.1 sound card, 398 yuan, landed in Xi'an [Copy link]

We just exposed Lezhibang's Moye LT sound card not long ago. Recently, Lezhibang's "Moye 5.1" sound card with ethnic characteristics has arrived in Xi'an. "Moye" sound card is one of the three series launched by Lezhibang, which is aimed at the popular civilian market. "Popularity" means products that ordinary people can afford and use. The Moye series includes four products: Moye Digital, Moye LT, Moye 5.1, and Moye 7.1. Today, I will introduce you to the Moye 5.1, which is priced at 398 yuan. It uses the VT1723 main chip of the ENVY24 series and the VT1617A CODEC to achieve 5.1-channel analog output.

　　This 5.1 analog output circuit uses 4 NE5532 operational amplifiers. Two are used as line outputs (front outputs), and the other two are used for center, subwoofer and surround outputs. For the front channel output, one operational amplifier is used for low-pass filtering, and the other is used for amplification buffer, forming Lezhibang's original balanced analog filter amplifier circuit (BALA). It is rare to use such a perfect analog output circuit in a sound card of about 400 yuan. Due to the existence of this part of the circuit, the analog output of Moye 5.1 is very musical, with a very high signal-to-noise ratio and a very high level. When the sound is turned up to 1/3, the sound inside the speaker is already too loud to listen to.

　　One circuit supplies power to the main chip and the digital part of CODEC; one circuit supplies power to the analog part of CODEC; and two circuits are the positive power supply and negative power supply for the line amplifier and headphone amplifier circuit respectively. Each power supply is independent and uses a special linear voltage regulator chip for voltage stabilization. The power supply for the amplifier is also LC filtered. Such a design can only be seen in high-end sound cards. In the past, the poor performance of low-end sound cards was largely related to the poor quality of the power supply. Moye 5.1 focuses on the power supply circuit, laying the foundation for the good sound of the sound card.

　　The Moye 5.1 sound card supports up to 24bit/96KHz professional digital audio format output, which can easily transmit PCM-encoded S/PDIF and high-standard Dolby Digital (AC-3), DTS surround sound digital audio format signals; and has 20bit/48KHz analog playback quality, dynamic range and signal-to-noise ratio indicators exceeding 100dB! The Moye 5.1 sound card uses a dual-crystal circuit design, combined with VIA Vinyl professional sound chip, which can avoid SRC problems that affect sound quality, and fundamentally ensure the purity and clarity of audio playback.

　　The Moye 5.1 sound card maintains the rigorous and bold design style of DIYEDEN in analog circuit processing. For example, the analog op amp is powered by a symmetrical power supply and is linearly regulated to isolate the hidden dangers of high ripple and high pulse interference in the PCI slot power supply, greatly improving the power supply quality of the op amp and ensuring the high output voltage swing of the analog op amp circuit design. The output coupling capacitor is removed to extend the low-frequency output of the analog signal to the extreme 0Hz, thus ensuring the large dynamic, low distortion, and ultra-low frequency characteristics of the playback of popular digital sound sources.

　　The Moye 5.1 sound card is also designed with an active analog filter circuit, which further reduces the high-frequency noise components carried by the chip output, making the sound purer. The headphone output interface of the sound card is a design that combines op amp amplification with discrete component output. The high current and high swing output characteristics make it easy to connect headphones with 32-300 ohm impedance, and the signal is directly output to the chip, which ensures that the headphone amplifier circuit and the front channel analog circuit are fundamentally split and extracted, and the impact between the two is minimized.

　　The digital output of Moye 5.1 sound card adopts digital signal reprocessing circuit design, which enhances the transmission efficiency of digital signal. If used with our stereo decoder series products, you can experience high-quality sound effects comparable to traditional Hi-Fi sound effects on PC system.

　　Recommended merchants: Bayin Information

　　Business address: Xi'an SEG Computer City A2035

　　Contact number: 029-88969171