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Description
Singxer SU-6 XMOS XU208 CPLD Femtosecond Clock USB Digital InterfaceProduct introduction: The SU 6 digital interface is a new generation of high performance USB digital audio interface. It uses XMOS' latest xCORE 200 series and Xilinx's high performance large scale PGA chip. The SU 6 is a digital interface using a thermostat level clock system. Crystek's two CCHD 957 femtosecond crystal oscillators provide a solid foundation for the superior audio signal quality of the SU 6 output. The SU 6 digital interface uses a
Product introduction:The SU-6 digital interface is a new generation of high-performance USB digital audio interface. It uses XMOS' latest xCORE-200 series and Xilinx's high-performance large-scale PGA chip. The SU-6 is a digital interface using a thermostat-level clock system. Crystek's two CCHD-957 femtosecond crystal oscillators provide a solid foundation for the superior audio signal quality of the SU-6 output. The SU-6 digital interface uses a standard USB2.0 input interface, while the SU-6 has a rich output interface, including S/PDI for fiber/coaxial RCA and BNC outputs, AES/EBU for XLR balanced output, RJ45 and HDMI interfaces. Output I2S (including DSD ON signal), clock output supports MCLK main clock and WCLK word clock. The power system design was optimized and the audio section was powered by a 7.5F (7.5 million uf) supercapacitor.
SU-6 is newly developed USB interface, which is positioned at the high-end interface. Compared with previous products, we mainly use the following four new self-developed technologies:
1, built-in CPLD pre-shaping technology, FPGA-based source synchronization technology re-shaping the isolated I2S signal, thus eliminating the additive jitter caused by the isolation chip.
2, the newly designed FPGA algorithm, built-in FIFO buffers the data and then outputs, SPDIF output is re-encoded by FPGA, so that the coaxial output can support PCM 384K and DSD DOP128 at the highest.
3, using CRYSTEK's CCHD-957 high-performance femtosecond crystal oscillator, with the self-developed constant temperature system and ultra-low noise super capacitor power supply system, further improve the short-stability performance of the clock.
4. Original single clock system, all circuits of the whole machine adopt synchronous clock design, in which USB clock is synthesized by PLL derived from femtosecond clock.
Technical indicators:
Sample rate supported by each output interface:
PCM: 44.1KHz, 48KHz, 88.2KHz, 96KHz,176.4KHz, 192KHz, 352.8KHz, 384KHz
DSD: 2.8 MHz (DSD64) - DoP, native
5.6 MHz (DSD128) - DoP, native
11.2 MHz (DSD256) - DoP, native
22.5 MHz (DSD512) - native
Bit width: up to 32 bit over I2S output
Up to 24 bit over S/PDI, AES/EBU
Electrical standards for each interface:
1, USB input socket is a standard USB-B type female socket, USB power supply range is 4.5V-5.1V;
2, DC POWER input socket uses DC2.1 socket, supports 7.5V-9V DC input (for fast charging of super capacitor, power supply requirement is 3A).
3, BNC interface and RCA interface output standard S / PDI signal, the level is 550mV (connected to standard load), the output impedance is 75 ohms;
4, XLR interface output standard AES / EBU signal, the level is 3.3V (connected to standard load), the output impedance is 110 ohms;
5, the word clock (WCLK) output uses BNC interface, the level is TTL (no load), the output impedance is 75 ohms;
The 6, 2 HDMI-I2S signals are output through the HDMI socket. The output four signals include MCLK, BCLK, LRCLK, and SDATA signals. The standard LVDS differential level is used, and the impedance is controlled at 100 ohms. The PIN13-15 of the HDMI socket is the DSD_ON signal, the high level is the I2S working in the DSD mode, the level is LVTTL; the PIN18 is the 5V weak power output (the output current is less than 20ma), which can be used as the interface plug-in indication; 2 output The I2S line sequence is the same.
7, RJ45-I2S output I2S signal is CMOS (5V) single-ended signal, low-impedance output, the output of four signals including MCLK, BCLK, LRCLK, SDATA signal.
8, the optical fiber port outputs the standard optical signal.
Design details:
1. Implement the design concept of electric power as the mother of sound, pay attention to the design of power circuit, adopt external DC input, built-in super capacitor power supply, with high performance, low noise and fast response LDO. The whole board is powered by up to 6 independent LDOs. The digital audio board is powered by a secondary LDO. The clock part even uses LT's ultra-low noise LDO, which lays a solid foundation for ensuring the ultimate performance of the output.
2, in order to ensure excellent electrical transmission performance, XLR sockets are made of Swiss Neutrik products, USB-B sockets are made of TE, and enthusiast BNC and RCA coaxial sockets are made for Taiwanese manufacturers. Even the fuses are selected from the United States. Litteluse model.
3. The audio board is designed with a 4-layer board to ensure a complete ground plane and power plane. High-speed digital design is used to ensure signal integrity and power integrity of the board. Special processing of the clock signal, using packet design and accurate impedance control, to ensure the signal quality of the clock and improve its anti-interference ability.
4, input and output signals are in accordance with the standard design, especially the USB high-speed signal uses 90 ohm impedance control, also built-in anti-static TVS protection circuit; I2S signal uses LVDS differential level standard, impedance control is 100 ohms, 4 outputs are used A separate LVDS driver.
System compatibility:
1, Windows 7, Windows 8, Windows 10; 32/64 bit, need to install a dedicated driver
2, Native MacOS 10.6 and later, using the system comes with a driver
3, Native Linux with UAC2 compliant kernel, using the system's own driver, (tested on Ubuntu and Daphile systems, based on INTEL X86 platform)
4, Android OS 4.2 and above, the device needs to support OTG function, in general, the Android 5.0 system is supported by default, and the following 5.0 recommendations are used with a dedicated player.
HDMI -I2S interface output:
1. LVDS differential signal with a level of 3.3V;
2.DSD ON signal, 5V power supply (small current), the internal PGA of the MUTE signal has been processed, and the MUTE signal will not need to be output;
3. The DSD ON signal can be defined by itself. The DSD ON signal can be arbitrarily output to the PIN13, 14, 15, and 16 pins of the socket.
4. The phase of PIN1-3 and PIN7-9 is adjustable, and the user can configure the phase of the two pairs of outputs through one switch.
Flexible I2S and clock configuration:
1. Switch 1-4 corresponds to the PIN13-16 pin of the HDMI socket. When it is pulled to the ON position, it means that the PIN pin has the output function of the DSD_ON signal;
2. Switches 5 and 6 are modes for configuring the clock output:
When the switch 5 is at O, the clock outputs MCLK, and when it is ON, the clock outputs WCK;
Switch 6 configures the frequency of MCLK, which is 22.5792M/24.576M for O and 45.1584M/49.152M for ON.
The configuration of switch 6 is valid for CLK OUT, RJ45-I2S, and HDMI-I2S.
3. The switch 7 can separately set the left and right channels in the DSD mode of the I2S signal.
4. Switch 8 can set the line sequence of BCLK in I2S signal; when O, PIN4 is BCLK+, PIN6 is BCLK-;
5. Switch 9 can set the line sequence of LRCLK in I2S signal; when O, PIN7 is LRCLK+, PIN9 is LRCLK-;
6. Switch 10 can set the line sequence of DATA in I2S signal; when O, PIN1 is DATA+, PIN3 is DATA-;
Note: Coaxial, optical fiber, AES/EBU output is not affected by the above code switch; RJ45-I2S wire sequence is fixed, need to adapt to different interfaces, you need to customize the network cable.
Chassis size and packaging:
The length and width of the chassis: 238MM*170MM*46MM, excluding the height of the feet and the protruding part of the connector behind the chassis.
The weight of a single machine is about 1.6KG.
The length and width of the carton packaging: 350MM*230MM*110MM.
Package weight: about 2.0KG
Accessories:
USB cable*1, power adapter (commonly used, AC100V-240V)*1, power cord*1
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4.8 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 3
instructive but limited
The testimonies of creative people that give this book its flesh and blood provide fascinating examples of creative people at work. That said, if a journalist had written the book, it would be more readable, and I don't think any less of an intellectual contribution. Moreover, the definition of creativity is elitist and stunts the topic (as observed by other reviewers): "Creativity is any act, idea, or product that changes an existing domain, or that transforms an existing domain into a new one. And the definition of a creative person is: someone whose thoughts or actions change a domain, or establish a new domain. It is important to remember, however, that a domain cannot be changed without the explicit or implicit consent of a field responsible for it." Given the people interviewed, much more needs to be said about the function of social institutions in promoting creativity. Many of the accomplishments lauded in this book would never have happened without grant-making agencies (e.g., NSF, NIH, HHMI) or non-profit employers like research universities and hospitals. To offer just one obvious example of the difference made by one's institutional context, the author had advanced students to help him do his research for this book. The elitism of the definition is even clearer in the role that marketplace plays as a judge of creativity. None of us buys books from amazon.com because some official group validated amazon.com as a good idea. We didn't wait for computer programers to affirm and certify it. Amazon.com is not deemed successful because it impressed its peers. It is successful because millions of us purchase goods through it. Similarly, auto-executives did not make the minivan a successful idea, millions of shoppers did. (Obviously I don't think the marketplace fits into the author's definition of creativity. If 300 million American consumers comprise a domain with 300 million judges, then the word no longer has any useful meaning.) The definition also precludes that countless ephemeral acts of creativity that take place daily. I think instantly of two women I have worked with who were great at holidays. Their clever costumes or decorations brightened my day, adding a little element of surprise and delight. Their acts of creativity don't meet the definitions of this book. The way that creativity is defined in this book is simply a filtering mechanism by which the author selected the people he would interview. It is not a definition of creativity. It is only a description of a subsection of creativity, the kind where institutions provide paychecks to highly practiced individuals to work hard at what they love. I also found little new to take away and apply to my own social existence inside the organization where I work. Perhaps I can summarize my dissatisfaction by observing that the subtitle sets out an agenda for the psychology of creativity, but the definitional filter is intrinsically social. This disconnection sets the book up to fail. So, count this as a negative review, yes, but I did enjoy reading the testimonies of the people interviewed, and the author adds some value in the generalizations he draws. Still, much, much more could have been said.
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Reviewed in the United States on April 30, 2012
★★★★★ 5
Wise and Complete
Format: Paperback
I've read a lot of books, too many, on creativity, and this is by far the best, the most complete, the most interesting. The idea that creativity comes out of immersion in a domain or field seems absolutely right and the idea missed by so many other writers. I'm a writer and a painter and I've learned that I'm not going to be any better than the work I've come to know and love, that I have to live in that work. If you want to be a better string player, play with a better ensemble. In many ways a creative person is someone who is in a conversation with what has come before, with work that excites her, teaches her, challenges her. This book makes that plain. But he has other insights as well, especially about the creative personality, the interesting dichotomies. Just read the book.
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Reviewed in the United States on February 22, 2015
★★★★★ 4
Creativity which has the power to change the world
A few caveats to those who are generally interested in creativity studies: Csikszentmihalyi's analysis and discussion of creativity does not directly relate to those who are personally creative. People who enjoy engaging in creative activities are not demoted, in his terms, but are simply not a part of the study. It is unfortunate that his language makes it seem this way; he distinguishes between the two by saying that Creativity has the power to shape a domain or the world, while creativity applies to those who enjoy coming up with new recipes, who are engaged in research that may not change a domain, but may "tweak" it, etc.
What he is trying to discover are the underlying principles and traits of creativity in those whose work has made a significant change. Think Albert Einstein, Eleanor Roosevelt, Mark Strand: people who are either widely known for their influence, or who have been influential within their area or domain.
This book provides an interesting view into the minds and work habits of Creative individuals, and concludes by offering general advice to those who wish to make their own lives and work more creative. It is a useful book, but one which requires a great deal of supplemental reading, in order to truly engage in creativity studies.
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Reviewed in the United States on January 29, 2003
★★★★★ 5
Fun easy to read way to see how the wealthy stay wealthy
Format: Paperback
Mark Quann’s Be Smart Pay Zero Taxes is an eye-opening, engaging, and highly informative guide that challenges everything most of us think we know about taxes, wealth, and the financial system. With his "Buy, Borrow, Die" strategy, Quann presents a bold new way to build and preserve wealth—legally and ethically—while minimizing tax liability.
One of the things that really stands out about this book is how approachable and enjoyable it is to read. Quann has a knack for breaking down complex financial concepts into bite-sized, digestible pieces. Whether you're a finance newbie or have been managing your own portfolio for years, you'll find the material easy to grasp and even fun to read. The tone is conversational, and the author's humor and wit shine through, making the book a far cry from the dry, overly technical finance books out there.
What I loved most was how Quann exposes the ways in which the banking industry and the government have duped ordinary people into believing we have no choice but to pay exorbitant taxes. He takes a deep dive into the financial system and reveals how the wealthiest individuals have been using clever strategies for years to legally avoid paying significant taxes. The “Buy, Borrow, Die” method isn’t just some gimmick; it’s a smart and effective way to sidestep the tax traps most of us fall into.
Quann’s perspective will make you question everything from your investment strategies to the way you think about saving and building wealth. This book empowers you with a strategy that not only helps you protect your wealth but also ensures that you're making the most of what you've worked so hard for. By the end, you’ll realize that we’ve been sold a false narrative about taxes and money, and there’s a much smarter way to approach wealth-building.
Overall, Be Smart Pay Zero Taxes is a must-read for anyone who wants to get ahead financially. It’s a wake-up call wrapped in a fun and easy-to-read package. If you're ready to take control of your financial future and start building wealth like the ultra-wealthy, this book is the perfect place to start. Highly recommended!
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Reviewed in the United States on March 28, 2025
★★★★★ 5
Not Just a Tax Book — A Wealth Blueprint
Format: Paperback
I picked up Be Smart Pay Zero Taxes because I wanted to learn how to be more strategic about building and protecting my money. This book completely changed how I think about wealth.
The “Buy, Borrow, Die” strategy finally made sense to me. Instead of just earning more (and paying more taxes), it explains how owning appreciating assets and borrowing strategically can legally reduce your tax burden over time.
What I loved most is that it didn’t feel overly technical or intimidating. The author explains things clearly in a way that made me stop and rethink my own financial plan. I found myself highlighting pages and re-reading sections because it challenged how I’ve always approached money.
If you feel like the tax system is confusing or unfair, this book brings clarity. It’s not about avoiding taxes illegally — it’s about understanding the system and making smarter decisions within it.
For me, this wasn’t just a finance book. It truly felt like a mindset shift.
Highly recommend if you're serious about building long-term wealth.
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Reviewed in the United States on February 13, 2026