D1:Flagship-level DXD APP music center

中文主页_1120_1119_05151156_713 ꄲ Digital Transport ꄲ AMC ꄲ D1:Flagship-level DXD APP music center

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AMC (All-round Media Center) platform is SOUNDAWARE's dream product for HD music reference playback for ten years. It incorporates the company's understanding of sound, functional experience and future HD music reference playback. In order to pursue this realization, we have obtained the official development authority of Intel motherboards and carried out the development of HIFI motherboards for three years, and then launched the first AMC MR2 self-developed X86 motherboards. Reference-level sound quality products are our dreams. This kind of product is more convenient. However, there are still huge challenges for high-fidelity music playback on all platforms. On the occasion of the 10th anniversary of the establishment of SOUNDAWARE, we are very happy to announce that AMC D1 is here. It makes our dream come true. It can be really extremely convenient to achieve the reference-level playback effect of various music, and it has a full range of playback ability. Whether it is MTV, DVD-audio, Blu-ray music, or youtube live music video, TIDAL, spotify, QQ music,rooncore, jriver playback, DSD512 offline music, etc., it can all be natively played, and even played through the ASIO channel. It is very powerful and very easy to use. It inherits the experience of SOUNDAWARE's independent research and development of intel motherboards. The materials are very luxurious, and it has a flagship level of sound output, which is what AMC D1 can achieve.

The Main Characteristics

AMC D1 has future-oriented full native, full HD, multi-platform music playback abilities and experience.

Support almost all music format playback (DFF, ISO, DSD, DSF, DST compression, FLAC, APE, CUE, WAV, AAC, ALAC, etc., support almost all music video playback (all kinds of music video files, DVD-Audio, Blu-ray music, 4K UHD music). Video can maximum support 4k@60hz resolution, stereo audio can support DSD1024 and above with PCM1536 support and above, multi-channel 7.1 sound channel 192KHz support and above.

Support the APP installation for all kinds of online music or video, almost all native playback support, and even support almost all ASIO ultra-low delay memory exclusive playback for music APP such as Spotify, YouTube, TIDAL and more.

Support all kinds of powerful PC - HIFI music and video playback and management app installation. A lot of powerful software is too difficult to be replaced after years of development for PC like jriver, foobar, hqplayer, dotplayer, etc. At the same time, the hardware far exceeds the requirements of roocore and the processing capability of hq CD has been upgraded to DSD256 , which fully meets almost all audio playback needs, and the video also has HDMI2.0 native output that supports 4k@60hz.

Strong expansion capability and peripheral interface: 1000NCVMbps network port, AC WiFi, USB3.0*2, USB2.0*3,4 SATA3 3.5 inch hard disk bits and pure linear power supply (customized version can have more option), almost unlimited capacity support.

There is better user experience than PC or music host, ultra-low noise, pure customized genuine LTSC streamlined system, extremely fast response speed, built-in wireless Bluetooth, and the well-known red dot design studio in Asia designed the appearance of its Hi-end features , Pure CNC processing method, which highlights the texture and dignity of the whole machine.

Four-core 2.3G 14nm+++ CPU performance, 16GB memory , it meets the performance requirements of the reference level, and has the extremely strong scalability of X86+Windows.

Flagship Level sound quality design and powerful USB and network output.

Intel X86 motherboard design is completely independent development of X86 Hi-end motherboard experience three years ago, based on which, cooperated with Asrock in the full IO linear motherboard. It is the full IO linear motherboard with the probability of all motherboards in the industry less than 1%.

Because of the completion of linearization of the motherboard for deep HIFI modification, high speed signal does not pay attention to the problem of low noise for consumption motherboard , which greatly improve the audio noise absorption capacity. Especially for CPU, GPU, memory and other high-power parts of audio noise reduction optimization, reduce the noise influence of power board on the motherboard .

Optimize power supply noise for low power consumption IO signal level, strengthen power supply such as PLL, improve PLL performance, improve HDMI performance of motherboard and integrated fiber output quality.

The fully audio-based customized BIOS shuts down extraneous hardware and locks out CPU frequency /GPU fluctuations within a minimal range, improving performance while reducing power fluctuations as well as optimizing interrupt response and PLL.

The main board has undergone six times revision designs, realizing the Hi-End ATX pure linear high power 300W level motherboard with rectifier, voltage regulator and filter completely separated, as well as the low-temperature Hi-End long-life capacitor motherboard. Deluxe and customized version adopt European reference level materials to ensure a high degree of reproduction. It also has extremely good sound appeal, at the same time, the entire power supply has high safety, and an instantaneous burst capacity of more than 10 times. The maximum single channel is 15A with the internal resistance of 3 milliohms and the noise of 1mv.

Dual potting and fully shielded transformer power supply, it can reach 270W (standard version 230W)full power at the adjustment rate of about 3%. USB is completely powered by independent transformer, and the noise of USB output is even lower than that of desktop computer after shutdown, which is only 1mV RMS higher than the ambient noise.

In-depth customization of Microsoft's streamlined enterprise-level legitimate Windows 10 operating system, without any unrelated applications and components. It can support all kinds of video and audio apps, and with the exception of important security updates, it's all set up for sound quality.

The deluxe and customized versions are played independently with 16GB of RAM, with incredible responsiveness and sound transparency. The main board of the whole machine is fully shielded, the memory is fully copper shielded, the aluminum shell of the whole machine radiates heat without any fan, all in order to reduce EMI noise, all for sound .

The whole machine is equipped with 6N high purity imported custom internal cable, gold-plated socket, 3A reference level custom fuse, and Soundaware Hi-End Class 15A filter built in both deluge and custom versions.

Why choose AMC D1?

The omnipotent broadcasting ability can be easily used without learning and can meet the needs of high-end users. As long as a D1 can solve offline, online, large capacity storage, a variety of playback control, large capacity music management, audio and video combined with hi-fi playback, everything is simplified. It greatly reduces costs and simplifies the system. Flagship Hifi level sound localization and design. D1 really solves the HiFi playback problem from the source.

	AMC D1	Linux HI-FI network player	Android HiFi player
Playback ability	Powerful playback capability, all-around, full HD, online and offline can be supported	Offline stereo music and individual platforms for HD	Offline HD, online lossless
User experience	Excellent, support all kinds of PC-HiFi high quality players, and all kinds of online HD full native playback	Poor, have to learn to use and download music , the cost of third-party software is high	Unable to play HD online, offline HD can be supported
Video music support capability	Full support, up to 4k@60hz resolution	Nonsupport	The audio in the video has SRC problems or cannot be HD
Music management ability	Hqplayer,foobar,rooncore,jriver etc.	Large capacity rooncore is the only option	It is dominated by very high capacity third-party platforms, such as RoonCore
Storage support ability	43.5 inch hard disk，USB3.02,USB 2.0*3	Expansion capability is limited, generally can support 1 or 2 hard disks, there are 1 or 2 USB ports	Expansion capability is limited, generally can support 1 or 2 hard disks, there are 1 or 2 USB ports
Network connection	AC WiFi +1000Mbps NIC +USB3.0 to 1000Mbps NIC	100~1000M, some with WIFI (but it is troublesome to connect)	1000Mbps,AC WIFI
Stereo audio playback performance	DSD1024&PCM1536 and above, RoonCore + HQPlayer up to DSD256	Incomplete format support, limited performance, general DSD512 as the limit.	Incomplete format support, limited performance, general DSD512 as the limit.
Audio formats	Full format, fully supported, including 5.1 channels 192 kHz.	Some formats are not fully supported and DST is only partially supported	Some formats are not fully supported
Video formats and capabilities	Can support common video, 4k@60hz resolution	unsupport	1080p
High-end utilization cost	Can support a variety of functions, the cost is lower	The system is too complex, and many functions are not supported, and the cost is high to optimize	The system is too complex, and high-definition online audio is not supported, audio and video can not be native output, optimization cost is high.

Current problems with music replay

Linux or closed webcasts generally only support offline stereo music, with single functions. You need to learn for the first time and download music independently.

Online music support is very weak, generally it requires a third party agreement to play, only support lossless, very few products integrated with individual online platforms for HD playback. At the same time, APP cannot be supported on all platforms.

High-end requirements for Linux or closed webcasting are very complicated and need third-party software and additional hardware support, such as roon software, rooncore host, and higher costs.

Linux or closed webcasting independently developed software solutions, which have a large gap with mature application maturity and a large gap in experience. At the same time, some sorting, multi-language, WIFI connection and other problems are prominent and difficult to solve or experience is poor.

What would an ideal reference-level music playback look like?

Flagship reference level sound quality, can easily play all kinds of music sources, including offline, pure music, audio and video combination and other types, it has a strong ability to expand, to meet the future utilization needs. Easy to use, same utilization habits of most people, and no need too much learning process.

The current native HiFi music playback solution

Native playback	Hifi pure audio stereo network player	HiFi Android audio and video player	Top level offline 4K video player	PC-HIFI	CD Player	Note
Offline HD DSD music with large capacity	support	support	support	support	Nonsupport	Super-large capacity offline music management and broadcasting costs are high
CD	USB CD drive	USB CD drive	support	support	support
DVD -audio/BD music	Nonsupport	Nonsupport	support	support	Nonsupport
All kinds of online HD DSD music	Very few platforms can support it	Very few platforms can support it	Very few platforms can support it	support	Nonsupport	Very few platforms are supported by third-party intermediaries or independent development
Online HD music videos	Nonsupport	Nonsupport	Nonsupport	support	Nonsupport
Operating experience	Common, need to learn, audio source issues need to be resolved, format support is common	Fine, but it only plays offline music in HD	Common，Need to learn to use, need to decode audio and video, format support is common	Excellent, almost omnipotent.	original
Instructions	Traditional network players do not have a video playback solution, and audio management and playback requires a complex system when the volume is large, and the cost is high	Android can't play online HD native audio , only through SRC, no native audio channel	Mainly focus on offline audio and video solutions	Omnipotence, but the reduction level is poor, mainly because the PC motherboard is a consumer level design.	Only for CD playback

AMC Omnipotent Platform of Soundaware

For the current HD native playback solutions, only a small part of digital music can be played in HD format, which causes obvious experience problems for users and a lot of high quality music can not be easily listened to, especially for high fidelity playback. Traditional PC hosts suffer from the sound quality of hi-fi music replay due to the consumption design, serious noise and high time delay affecting the whole decoded sound at the back end.

As a manufacturer of network players for 10 years, it owns the patent of FPGA and core architecture for audio playback. It has rich audio protocol implementation and deep understanding of the whole layer of low-level playback. Because of the major defects of digital music replay, we know that audio replay is not a single system, and it must be optimized as a whole and from the beginning to achieve the best effect of sound restoration. Soundaware's ARM+FPGA has carried out in-depth optimization of ARM since 2013. It was not until 2017 that the pure linear version of the fourth generation CPU and the power level ultranapacitive power supply were launched that the D300Ref reference level product was produced. Over time, the demand for all-in-one, all-in-one high-definition PCM&DSD audio or audio-visual combination reference-level playback has increased, and there is no perfect solution on the market. The company was originally engaged in Android development before 2015, hoping that Android could support the audio fully native driver channel in the future, but after several years of waiting finally disappointed, after applying to become an official partner of Intel motherboard in 2018, we entered the real X86 HiFi +Windows motherboard research and development.

Intel related images

AMC is a complete solution from motherboard hardware, BIOS, power supply to operating system, from real HIFI motherboard development, power supply system, BIOS audio and video optimization, to operating system optimization, it has a full range of all-around native HI-END high-definition PCM&DSD music playback capabilities. It implements true hi-fi music playback, simplifies the complexity, solves not only the sound problem, but also the music and experience problem. One machine solves all pain points, has no barriers of using experience, and it is the only scalable native genuine high-fidelity platform system.

Optimization Starts with the Motherboard

Only the motherboard of the processor X86 can support the windows operating system,and for good sound, USB or network port output must be clean enough, low latency and high stability. In technical terms, it is USB, network interfaces require very low noise levels, as well as very low response latency and response latency stability. Because digital audio replay itself only begins to filter out noise above 20kHz in the audio region, and most filters begin to filter above 30kHz, noise below 20kHz will be transmitted directly to the analog signal through the power supply, other signals, or radiated interference in the machine, thus affecting the distortion and listening sensation.

For consumption motherboards, because of the need to pursue energy efficiency, and high frequency digital circuits of low-frequency noise (100 KHZ and below) are not sensitive,now the consumption level of the mainboard are all made of switch power supply as well as all the voltage regulator chip of switch type, whichever interface, noise in the audio area is very large, especially the noise of the audio area, the motherboard is barely processed. Now on the motherboard even if the use of super current capacitor, the first level of filtering is only about 500uF, for more than 3A electricity demand, it will produce a large number of noise in audio area . Additional with the pursuit of cost, normally the noise is too big that it can only maintain the normal operation of the digital circuit. In order to pursue the function and save the design cost, the hardware function is difficult to give full play , so the delay of the audio related interface becomes uncertain, and the noise directly affects the interface, resulting in very bad sound.

To meet HIFI requirements, the audio area must be noise-reduced from the interface signal and power supply, otherwise the audio area noise will be carried directly into the analog signal and will not be filtered out. At the same time, the high efficiency and stability of the interface request must give full play to the limit performance of the hardware from the motherboard design level. turn off irrelevant peripherals, perform in-depth audio-level optimization from the BIOS and operating system, achieve reference-level performance, professional audio processing,by which to achieve ultra-low response time and response high stability of over time.

From Self-developed Motherboards to Cooperative Motherboards and Power Supply Systems

The problem of self-research motherboard

Long period of three years, high research and development cost

Update of motherboard is too fast

Sales of Hifi are too small which makes it difficult to spread the cost of research and development

Difficulties of Full Customized Motherboard

The quantity of Hifi is too small, far less than the number of customized motherboards requirement

HIFI modification requirement is difficult for the consumer motherboard manufacturers to understand

It is difficult to purchase HIFI materials from motherboard manufacturers

Hope and effort are less than 1%

Nowadays, consumption motherboards are overly pursuing high efficiency and cost-effective power supply, it will not use ultra-low noise linear power for voltage conversion and power supply. All interface output power and signals of the single-power-supply motherboard are from the switching power supply voltage conversion chip, which cannot meet any requirements of HIFI at all. so the native power supply of the ATX interface becomes the only hope. However, as the power consumption of CPU and graphics card is getting higher and higher,, the power consumption of motherboard is also higher and higher. ATX power supply has been unable to meet any mainstream motherboard power supply needs. With the advent of ATX12 standard, almost all power supply needs of the motherboard are now from 12V through the switching power supply voltage conversion chip. The problem is similar to that of single power supply. Basically, more than 99% of the output interface IO power supply and 5V power supply of the motherboard are not directly from the ATX interface, so it is impossible to talk about the linearization of the output interface and the low-noise power supply.

Fortunately, the company searched the motherboard libraries of several major brands in this field. finally, when we searched the motherboard library of Asrock, we found that there were several motherboards that might be close to our requirements. After site verification, it was found that when the linear IO requirements were fully met, other aspects also exceeded the company's imagination. USB can be independently powered, separated from the 5V (HDMI, etc.) power supply of the motherboard, and it was an ultra-low power TDP 10W CPU motherboard.

Finally, after months of difficult negotiations with Asrock, the company reached an agreement based on the Intel motherboard partner's qualifications, details of Intel CPU design and experience in the design and production of X86 motherboards. The company is responsible for the deep transformation of the secondary HIFI of the motherboard, and Asrock is responsible for the technical support. In addition, BIOS was optimized and designed according to SoundAware requirements.

Motherboard of D1

D1 motherboard is only a consumer level design, achieving full linearization and independent USB power supply are just the basis., there is still a long way to go to fully meet the AMC flagship sound quality requirements, based on the motherboard design and chip manual, we carried out a deep HIFI transformation of Asrock motherboard.

Deep optimization of high-power power supply circuit, replacing high-performance capacitors and increasing large-capacity capacitors, which can greatly reduce the low-frequency noise generated by high-power electric circuit including DDR, CPU, GPU and so on.

Enhance power supply for PLL and low voltage IO, and replace higher performance components.

Cut the unused motherboard accessories power.

The only vertical memory module with large EMI is fully copper shielded, and the motherboard is shielded.

USB Audio performs two times filtering and noise processing to isolate the impact of USB peripherals, and the special shielding 5N single crystal copper causes optimization of noise and improves sound quality.

Heat is introduced into the shell, the CPU is lowered, and the thermal noise is reduced

Such as MR2 motherboard, BIOS deep optimization and customization, disable useless functions, lock CPU frequency and power supply voltage, increase performance, reduce user fluctuations, and improve interrupt priority and response.

Through the above optimization, the noise of USB Audio to the ground is reduced by at least 50% with ATX power supply, especially at higher load, and the noise level is more stable, and the noise in the audio area is also greatly reduced. (Ref the comparison of actual noise measured in the power supply part for details)

TD1 Power System

After the deep transformation of HIFI, the D1 motherboard can fully realize the linear power supply of IO, especially USB independent 5V power supply, so the whole power design is very significant.

After six revisions, all kinds of pressure, performance and abnormal tests, Soundaware ATX fully meets the ATX standard, single output is maximum 15A with adjustment rate of 2% and below, high power ultra-low noise (about 1mV), all kinds of perfect protection (high temperature, short circuit, low voltage, overpressure) and alarm. Rectifier, filter and voltage regulator are designed independently with high power and high current support. As we all know, when it is above 10a, the rectifier generates huge heat, and the ATX motherboard has three channels of super current power supply. If the heat is integrated on the filter board, it will cause the heat of the filter board to rise sharply. Therefore, the rectifier board is integrated on the motherboard separately to use the bottom reflector to dissipate heat, while the high-power voltage regulator power tube collects heat on the radiator end. In this way, the overall temperature of the filter board is extremely low, which is basically significantly lower than 60 degrees. This creates conditions for the filter board to use some reference level audio capacitors, which also leads to the arrival of luxury product.

The whole machine is close to the first and second filter capacitors of 200,000 uf, and the second filter capacitors of 20000uF level of the voltage regulator, which ensures the super-large current and ultra-low noise. The addition of luxury and customized reference capacitors and materials makes the luxury version more standard. The version has more excellent music appeal and resilience, and the standard version also uses all advanced audio materials to meet the high requirements of AMC D1.

For luxury and customized versions, for only about 30W motherboard and peripherals, the rated margin of the whole machine is more than 10 times, and the instantaneous margin is more than 100 times. This is also the luxury design of real flagship products.

Amazing Test Results

Based on the combination of luxury power supply and hifi motherboard, the USB output power noise of AMC D1 customized version (only system disk is installed) is 8 times higher than that of AMC D1, especially in the case of high pressure, the difference is more obvious, even up to 15 times at one time. The noise of AMC D1 USB power supply is even lower than that of a computer host USB when it is turned off, only less than 1mV RMS higher than that of the environment when the power cable is removed.

Powerful Playback Capability

Hi -End Design and Flagship Sound Quality

“The most universal aesthetic in the world is symmetry. We use metal as the main material to form various functional areas through diamond-cut cut surfaces, and organic connections between the cut surfaces are formed. The geometry is rigorous and full of optical refraction aesthetics. "

While pursuing Hi-END and artistic beauty, how to make a product really enter more hifi enthusiasts' families, in addition to the ability of all-round music playback, deeply optimized motherboard and power supply, we also need to look at every detail that can be improved.

Independent ground system design

For the traditional host, shell and USB are connected with the earth, if the DAC is connected, it will lead to the earth loop. The independent ground system contacts with the external earth through the super current switch, and supports the external ground wire or hifi ground box, which greatly improves the sound quality.

The internal wire of D1 adopts imported 6N certification high-purity oxygen-free copper customized gold-plated high-grade pin, shielding + shock absorber connection method, ATX and SATA power cord is also customized 6N wire.

The Hi-END reference level filter is a high-power, high-performance ultra-low internal resistance filter specially designed for the next-generation reference level by soundaware. It is wound with high-grade transformer core and high-purity varnished wire, and its rated current is up to 15A.

The customized and enjoy sound reference fuses are 3A high-performance fuses with exactly the same material and sense of hearing, which have a high degree of reduction and excellent musical appeal.

Based on Windows Enterprise Streamlined Enterprise Edition, it has been streamlined and optimized again, professional audio-visual customization, has no irrelevant built-in applications, almost no updates, safe, refreshing, and smooth.

Because of the ultra-low temperature design of the filter board,luxury and customized version can use common 85-degree audio capacitors. Therefore, in order to truly give full play to the best effect of AMC D1, we imported a batch of limited-level reference materials for tuning. On the basis of the standard version, the sound is more transparent, especially the music is more appealing.

There are also accessories carefully selected by the professional D1, which match them with higher quality

Strong Scalability

Interface Introduction

The power of the music output interface is powered by a high-performance linear power supply, except for the above-mentioned back interface + windows, which has almost unlimited universal expansion capabilities, such as USB to 1000M network card, USB HD Bluetooth module, CD-one (hard disk, Blu- ray drive, 4K UHD drive) access, and so on. The customized version provides three sata3.0 secondary pure linear luxury CD-one power supply storage interfaces. Under the limit of 20tb single hard disk, it can support up to 80Tb mechanical storage. With the sharp decline of SSD price, A more affordable 4*5TB=20TB is also coming soon. Quiet, pure, fast, good sound quality will no longer be a dream.

Excellent High Fidelity Video Playback Ability

Support hard solution 4k@60hz resolution UHD, 10bit HDMI 2.0 output capability, pure linear hi-end ATX direct power supply, HDMI and IIS PLL power optimization, deep enhancement of GPU (integrated graphics card) power supply system, with luxury gift of high purity 6N Hdmi2.0 wire, the image quality is not inferior to the effect of high-end 4K special machine, supports HDR -- > SDR conversion playback, plus windows customized audio-visual system rich software, both online and offline video can have excellent display effect. HDMI automatic audio-visual synchronization, while supporting audio-visual separation, through USB Audio ASIO or on-board 192Khz 7.1 channel optical fiber ASIO output.

Convenient to Use

AMC is based on a streamlined enterprise genuine windows authorization, customized for audio and video, and it is simple to use. It can be used as an offline pure audio, or it can be completely controlled by the network. It can be controlled by a mobile phone or a pad when connected to a USB/network DAC. Even for music videos, enterprise versions of windows, Microsoft's remote desktop, the function allows you to be displayed around you all the time, just like the operation of this machine. More powerful audio and video functions, just connect a monitor, you can operate and experience seamlessly like an audio and video box.

Convenient Connection

AMC D1 provides a pure, ultra-low noise USB professional audio output interface with fully linearized power supply. At the same time, the USB interface has ultra low delay and strong stability. If combined with professional USB ASIO driver, AMC D1 will be the best choice to play the best sound quality of USB DAC.

1000Mbps linear, ultra low noise network interface, with more pure network signal output, faster network response optimization, extremely stable network delay, it is the best choice for network DAC.

Difference Between two Versions

This table only lists the differences. Ref. Introduction for the same section

	Deluxe version	Customized version	note
System hard disk	512G SSD	Storage capacity can be customized	Longevity SSD with cache
Blu-ray disc	√	Customizable storage and additional purchase of a CD-One as a Blu-ray drive.	Can play CD/DVD/ Blu-ray, etc
The hard disk configuration	2TB SSD/12t mechanical hard disk	Storage capacity can be customized	Longevity SSD with cache
Hi-END filter	√	√
5V power supply	15A+3=18A(MAX)	15A+3=18A(MAX)	Rated limit power supply current
Material of power board	Reference grade audio material with imported reference grade capacitors	Reference grade audio material with imported reference grade capacitors
Operation system	SoundAware customized legitimate enterprise WIN system, with its own activation code.	SoundAware customized legitimate enterprise WIN system, Need to purchase additional activation code	need to be activated autonomously.
Memory card	16GB	16GB	The 16GB of RAM allows for full system memorization and full music playback through memory. The sound quality is better
Transformer capacity	230W+40W	230W+40W	Hi-end potting shielding transformers with transformer adjustment rate of less than 5%
The sound quality	The restoration is very good and the sound is very infectious	With just one SSD, the sound is better than the Deluxe version.

Specifications

Power consumption (maximum) : 300W

Wireless Network: AC WIFI

Cable network: 1000Mbps

Plug linear storage: support 3.5 "/2.5" SATA hard disk

HDMI: HDMI 2.0, 4k@60Hz resolution, automatic sound and picture synchronization

Q&A

In order to realize AMC's all-round playback, how do the Soundaware Linux products in production connect to the AMC platform and how is the sound?

All the current Soundaware products have USB input function, just connect the USB sound card to AMC , and install professional ultra-low delay driver of AMC for Soundaware current products, which can achieve the best sound of Linux products.In terms of sound, it can achieve even better than the new version of CD-ONE and it has powerful player ability of AMC audio too.

Do I need to buy a high performance interface to match with AMC D1?

Generally speaking, the USB interface of high-end DACs released in the last two or three years is generally good, and you don't need to buy it in principle. If it is an early USB high-end DAC or a high-end DAC without USB function, it is recommended to buy D300Ref or a top grade interface to improve the sound quality of the DAC. AMC is mainly to give full play to the best performance of USB, so it is unrecommended to buy an interface first. Connect the existing device first to listen whether the sound is satisfied, if the sound is dynamic, analysis and sound field are normal, then you can purchase.

What details should be paid attention to in order to get good sound quality in D1?

If the DAC has USB and wired network interface,give priority to USB + fever HIFI-level USB2.0 cable, because when the delay is lower and the efficiency is higher, the DAC plays better. If it is a network interface, it is unrecommended to string into a general consumer level router or switch. Direct connection is recommended. If you must connect to a switch, it is recommended to use a HiFi level switch. If you need D1 to be stored via USB extension or external optical drive, it is strongly recommended to use CD-One and other HIFI modified power supply and peripherals, which will not cause pressure and influence on the existing power supply. If you need access to the keyboard and mouse,you can use the Bluetooth keyboard and mouse function of this machine, and wireless access is the best.

I currently have a HIFI webcast turntable and DAC solution, as well as a rooncore host, nas, HIFI switch, and a fever grade network cable. I always feel that the system is complicated. How can I optimize it with AMC?

There are two options:

If you have a Roon Life Membership account, you can continue to use Roon, if your decoding is a relatively new decoding and your USB design is good, you can connect the USB DAC to AMC D1 via a HiFi-grade USB cable and install RoonCore on the D1, which can eliminate the transporter and the RoonCore host. At the same time, your music can also be stored completely by AMC instead of on NAS, so the sound will be better. Try to use enterprise-grade hard drives when buying hard drives.

If you only use roon temporarily, it is not recommended to use Roon's decoding scheme directly. It is better to put your music directly on the AMC. At the same time, software such as jriver or hqplayer can manage music and set it to self-start, mobile phone Install the client to control and play. If your DAC has USB input, you can use a HiFi-rated USB cable to connect to the USB DAC, or use an AES/IIS via the transporter to connect the DAC. In this way, no need music NAS, Rooncore host, HIFI switch, fever network cable and so on.

I just plan to use D1 to listen to offline and online app music. Although the windows system is very powerful and it has been mentioned in the introduction, I still insist on how to operate when there is no screen. Can you tell me something about it?

If you use D1 for offline music playing and management, it is recommended to download windows software with remote control such as jriver/hq/roon, and use the software on windows. As the music server, so that it can be started by the mobile phone client after setting the auto-start End-to-end control and playback are very convenient.. If you want to play online music, such as Tidal, Quboz, etc., it is recommended to use remote desktop control. If it is a niche music platform without Windows software, it is recommended to stream to HQPlayer, Jriver, Foobar and other software through DLNA function, which is also native playback.

Many HiFi hosts currently use X86 motherboards + linear power + Windows, although I can see that SoundAware has done a lot of work in this regard, can you summarize the differences?

In general, we should look at it from three aspects:

System genuine optimization.

Mainboard linearization, mainboard secondary HIFI transformation,and the BIOS optimization with the motherboard. Is ATX supplied by pure linear power or single power line.

The most important thing for the optimization of the system is genuine and simplified configuration,, because the more streamlined, the lower the hardware consumption. But it must be genuine to meet the needs of application operation, stability and security. Very few ATX motherboards are linearized, which is estimated to be about 0.1%. The linearized motherboards are the signals of I0 interfaces such as music USB and the output power supply is completely linear and direct. This choice is very difficult, and most motherboards do not support it. At this point, non-ATX power supply and most of the motherboard power supply that cannot be linearized with line electricity because the low noise of line electricity can not be used, the motherboard is full of switching power supply DC-DC voltage regulator, audio area noise is very harmful to audio.

Second step, even if it can realize ATX linearization of the motherboard (such as the original mainboard D1), the line to the electricity still can not meet the real HIFI demand, because the actual test under the noise is still high, and the consumer motherboard design is not consider the noise in the audio area. These noises are caused by the CPU, GPU, and memory power-consuming devices on the motherboard PCB. It's like you have a private line in your house, but if you put the refrigerator and the TV on the same line, it will still seriously affect your private line. so you need a second deep HIFI transformation of the motherboard, isolation, nearby power to reduce the impact, increase the margin, reduce EMI radiation, and optimize the BIOS. The list must be carried out with the motherboard chip design data and instruments.

Finally, let’s talk about the power supply, single power supply has no significance to discuss, because the motherboard certainly cannot achieve linearization, both 5V and 3.3V are through the switching power supply DC-DC voltage regulation, noise is very large. Even linearization of low noise can not be done, optimization is out of the question. It is not easy to make ATX power supply well. Soundaware made seven adjustments and spent more than a year to optimize it. In addition to excellent noise control levels, precision, large current, tuning, good materials, and more importantly, safety. The safety mentioned here is not only the safety of the power supply (no sudden crash and occasional failure to start up, stable work under high load, various protection), but also how to make the capacitor cooler.. This invisible safety issue has a significant impact on the life, resulting in significant installation costs for SoundAware's ATX. Therefore, whether a solution has solved the problem from the source is not simply to look at the surface but a real understanding of what problems have been solved. There are more detailed instructions and test results in the product introduction.

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