Why we are so proud of the SU-1:

SU-1 is the first equipment we developed with high C/P ratio, positioned to confront with the $1000 or above high-end interface on the shelf. The design take advantages of the following:

1. Full isolation technology (ground isolation),
2. Source synchronous shaping technology by CPLD - to eliminate jitter as much as possible;
3. The utilization of the High-performance CRYSTEK CCHD-957 oscillator for the system clock is the result of pursuing the lowest phase noise and lowest jitter.

The XCORE-200 technology:

SU-1 is the first using the XMOS latest xCORE-200 series of high-end USB digital interface products. With many years of experience in the field of digital work, as well as getting full support from the XMOS FAE support team, the SU-1 conducted a number of technical improvements and optimization algorithms over the original XMOS firmware, differentiate us from the rest of the products using XMOS technology.

Focus on the very detail:

High Quality Power Supply design

• High-performance, low noise LDO as the main power source.

• Independent LDO power supply through the whole design ensuring ultimate stable performence.

Optimized Circuit

4 -layer circuit board design, ensure that you have isolated power and ground plane layer

Specifications:

Each output interface supports sample rates:

PCM: 44.1KHz,48KHz,88.2KHz,96KHz,

176.4kHz, 192KHz, 352.8KHz, 384kHz

[ Wherein I2S out support full sample rate , S / PDIF supports up to 192KHz]

DSD: 2.8 MHz (DSD64)   –  DoP,native

5.6 MHz (DSD128)  –  DoP,native

11.2 MHz (DSD256) –  DoP,native

*Newest Firmware 220/222 Support DSD512

[ Wherein I2S out support all DSD format , S / PDIF and AES / EBU support DSD64 DOP mode ]

32 bit over I2S output

24 bit over S/PDIF

Each interface electrical standards:

1 , the USB input socket is a standard USB-B type female, the USB power supply range 4.5V-5.1V ;

2 , the RCA connector outputs standard S / PDIF signal level is 550mV ( access standard load ), the output impedance of 75 ohms;

3, the power input is 110/220V AC, internal use RS importing adapter for power.

System Compatibility:

1, Windows XP, Windows 7, Windows 8; 32/64 bit, you need to install special drivers

2, Native MacOS 10.6 and later, using the system comes with drivers

3, Native Linux with UAC2 compliant kernel, using the system comes with drivers

4, Android OS 4.2 and above, the need to support OTG function.

I2S interface with HDMI output socket:

1. The level of 3.3V for the LVDS differential signals;

2. The output signal is muted, DSD ON signal, 5V power supply (low current);

3. The output signal mute, DSD ON signal can be modified according to customer needs, internal CPLD can define different output pins; the two signals can be output to any socket PIN13,14,15,16 pins.