SGD1, High Fidelity Fully Balanced DAC
2. SABRE32 Reference DAC
3. Multi-core RISC Architecture XMOS
4. Custom Thesycon Driver
5. Supports Bluetooth 5.0
6. Multi-function Knob and Remote Control
7. 7 Filter Modes Switching
1. USB-B input indicator | 2. USB-C input indicator |
3. Bluetooth (aptX HD 5.0) input indicator | 4. AES input indicator |
5. Optical input indicator | 6. Coaxial input indicator |
7. Coaxial output indicator: Coaxial output always be enabled, All 6 kinds of digital inputs can be converted into coaxial output | |
8. Apodizing fast roll-off filter (APOD) mode indicator (Default) | 9. Brick wall filter (BRIC) mode indicator |
10. Minimum phase fast roll-off filter (FAM) mode indicator | 11. Linear phase fast roll-off filter (FAL) mode indicator |
12. Hybrid fast roll-off filter (HYER) mode indicator | 13. Minimum phase slow roll-off filter (SLM) mode indicator |
14. Linear phase slow roll-off filter (SLL) mode indicator | 16. IR receiving window for IR remote control |
15. WiFi/Bluetooth antenna for system OTA: Configure the network for SGD1, Software upgrade over the air, Control SGD1 by APP | |
17. Bluetooth (aptX HD 5.0) special antenna for HD music | 18. LED lamp band for volume indicator |
19. Multi-function knob button integrates all the functions and operations of SGD1: Volume up and down control, Mute analogue output XLR/RCA, Digital input switching, Filter mode switching, OTA mode setting | |
1. XLR analogue output(Left and Right): 4.0Vrms @0dBFS | 2. RCA analogue output(Left and Right): 2.0Vrms @0dBFS |
3. AES input: 24-bit / 192kHz DSD64 | 4. Coaxial output: 24-bit / 192kHz DSD64 |
5. USB-C input: 32-bit / 768kHz PCM / up to DSD512 (Native) | |
6. USB-B input: 32-bit / 768kHz PCM/up to DSD512(Native): When both USB-C and USB-B are plugged in, USB-B is default, User can switch between USB-B and USB-C freely with the knob or the remote control | |
7. Optical input: 24-bit / 192kHz DSD64 | 8. Coaxial input: 24-bit / 192kHz DSD64 |
9. Voltage selector switch: Please check the correct voltage before using SGD1 and the wrong voltage will damage SGD1 | |
10. AC power input connector: Please use our customized three-phase power cable to get the best playback quality | |
11. Fuse: Include backup fuse | 12. Power switch: Please check the local voltage level again |
SGD1-01 Balanced THD+N.JPG
SGD1-JITTER.png
SGD1-IMD Sweep.jpg
SGD1-03 Unbalanced THD+N.JPG
SGD1-04 Unbalanced THD+N.JPG
SGD1-05 Dynamic Range.png
SGD1-06 Signal Noise Ratio(SNR).JPG
SGD1-07 XLR Crosstalk.JPG
SGD1-08 RCA Crosstalk.JPG
SGD1-09 Frequency Response.png
Dimensions | 250mm(W) * 225mm(D) * 55mm(H) | |
Net Weight | 2 Kg | |
Power Input | AC110V / AC220V | |
Power Consumption | < 9W | |
Signal Input | USB-B / USB-C / Bluetooth / Toslink / Coaxial / AES | |
Digital Output | Coaxial | |
Line Out | XLR / RCA | |
RCA | Coaxial input | |
Analog Output | XLR | RCA |
THD+N @1kHz | < -120dB | < -120dB |
Frequency Response@20Hz ~ 20kHz | ± 0.15dB | ± 0.15dB |
Dynamic Range@1kHz A-wt | < -126dB | < -124dB |
SNR@1kHz A-wt | < -126dB | < -124dB |
Crosstalk @10kHz | < -143dB | < -140dB |
Output Voltage | 4.0Vrms | 2.0Vrms |
Output Impedance | 200Ω | 100Ω |
Noise Floor Modulation | 4.3μVrms | 5.0μVrms |
Q1: Can the USB-C port be used for both power and input signal simultaneously?
A1: No, it cannot charge. It can only be used for signal input.
Q2: Does the volume level change when switching inputs?
A2: The volume has memory function. Each input can have its own corresponding volume level.
Q3: Can the default input be set to Optical?
A3: Yes. Simply switch the input to Optical. Based on the SGD1's memory function, it will start up with Optical input next time.
Q4: How to put the SGD1 into standby/sleep mode? What is the power consumption?
A4: Press the mute button. After a period of inactivity, the front panel will turn off, entering standby mode. Power consumption is less than 8W.
Q5: How to switch filter modes?
A5: Long press the knob until the filter mode indicator lights up, then rotate the knob to switch between filter modes.
Q6: Can I connect headphones directly to the SGD1?
A6: There is no headphone jack. You can use a dual RCA to 3.5mm adapter cable to connect some low-impedance headphones. For HiFi headphones, it is recommended to use a headphone amplifier.
Q7: Can it connect to speakers?
A7: It can connect to active speakers. Passive speakers require an external power amplifier.
Q8: What are the op-amp models?
A8: I/V Circuit: OPA1612 * 2; LPF Circuit: RT6863 * 2.
Q9: What crystal oscillator frequencies are used?
A9: 24 MHz; 45.1584 MHz; 49.152 MHz; 100 MHz.
Q10: Does it support DoP (DSD over PCM)?
A10: No. When playing DSD audio sources, the DSD stream goes directly into the DAC chip without transcoding.
Q11: The SGD1 is connected and the input is set, but there's no sound. Why?
A11: The initial boot volume is set to minimum. You need to increase the volume. Long press the volume '+' button to increase volume quickly.
Q12: When connected via USB to a computer using Foobar2000 to play a DSD file, and coaxial output to another DAC, why is there no sound?
A12: The DSD to coaxial SPDIF conversion function is not enabled.
Q13: Can software be used to control the SGD1's audio?
A13: Yes, it supports the generic USB Audio protocol.
Q14: Can the SGD1's Bluetooth be turned off? Why can't I connect to the SGD1's Bluetooth?
A14: Yes. Turn off the Bluetooth on the host device or the SGD1, then try connecting again.
