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DescriptionThe discount booking is currently open, and it is expected to ship within one month. For reservations, please contact.The domestic unified retail price of the standard version is 6,280 yuan, and the overseas unified retail price is 1,099 USD.The retail price of the high-end version is 8800 yuan, and the overseas price is 1399USD; the high-end version needs to be adjusted manually, so it takes more time to ship. The high-end version adopts a loop-free negative feedback output circuit, and the THD+N index will probably deteriorate by 2-3db; the crystal oscillator of the USB part uses a CCHD-957 femtosecond clock; the analog part uses a Mondolfo film capacitor for tuning. The sound performance will be more relaxed and lively.SDA-6 is a high-performance DAC developed by our Singxer team. It uses XMOS’ latest xCORE-200 series chip XU208 as the USB Audio solution, and uses AKM’s third-generation flagship DAC: AK4499 as the main chip for digital-to-analog conversion, AK4118 As a digital audio input receiving chip, STM32 is used as the control core of the whole machine, and Xilinx's large-scale FPGA is used as the clock system and digital audio stream processing. PCM supports up to 384Khz, DSD adopts native direct solution technology and supports up to DSD512.The DAC chip adopts the latest AK4499 released by AKM in 2019; DSD adopts the native direct solution mode. The DSD digital stream does not pass through the internal digital filter and works in the NOS mode, which is fully in line with the design concept of HQPlayer.It has a wealth of input and output interfaces, including standard USB2.0 input interface, SPDIF and BNC coaxial and AES balanced input, HDMI-I2S input interface, analog output including XLR balanced output and RCA single-ended output; all interfaces support DSD input.SDA-6 supports external clock input, among which USB supports 10M clock input, and other interfaces support WCK input. In USB mode, it also supports adjustable input impedance of 50 and 75 ohms.Main technical features:1. Self-developed adaptive clock system technology, built-in 4 independent ultra-low jitter audio crystal oscillators, equipped with a femtosecond-level local clock system for the USB part, the standard version of the crystal oscillator is AS-318B, and the high version is CCHD- 957.2. High-performance digital-analog hybrid phase-locked loop, excellent clock synchronization recovery technology, can greatly filter the secondary PLL of external digital input jitter;3. It adopts 4 channels of fully balanced and full DC discrete circuit output; among them, the high-end version adopts non-loop negative feedback output;4. Large-scale FPGA for digital audio signal processing, self-developed second-generation algorithm, original multi-input channel isolation technology, to ensure the purity of each input signal.All versions support 115V and 230V AC voltage switching, and there is a switch inside.Technical index:Sampling rate supported by each input interface:PCM: 44.1KHz, 48KHz, 88.2KHz, 96KHz,176.4KHz, 192KHz, 352.8KHz, 384KHz[USB and I2S support all sampling rates, and S/PDIF supports up to 192KHz]DSD: 2.8 MHz (DSD64)-DoP,native5.6 MHz (DSD128)-DoP,native11.2 MHz (DSD256)-DoP,native22.5792 MHz (DSD512)-native[USB and I2S support all DSD formats, S/PDIF and AES/EBU support DSD64 DOP mode]Bit width: up to 32 bit over USB and I2SUp to 24 bit over S/PDIF
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