Note:
We are prioritising products that customers need most. Delivery times for some items may be longer than normal.
Introduction
SIMPLE BUT NOT SIMPLE
For SGD1, its ID designer through delicate gimmick expression contracted charm, concise but not simple, especially the front panel runway design has a unique artistic charm.
RICH DIGITAL AND
ANAL OGUE INTERF ACES
SGD1 integrates 6 kinds of digital inputs and standard voltage full balanced (XLR)and single(RCA) analogue outputs. At the same time,two different international voltages can be switched according to the user&x27;s local voltage and that&x27;s convenient for audio fanatics all over the world to enjoy its sound.
EXCELLENT COOLING SYSTEM DESIGN
SGD1 has a special and beautiful design of heat dissipation which ensure SGD1 can work stably for a long time in the optimal performance state.
HIGH END POWER SYSTEM DESIGN
SGD1 integrated two groups of linear transformers to realize the digital and analogue circuits separate power supply, and carefully selected a large number of ultra low noise LDOs and audio capacitors, they jointly achieve SGD1 excellent ultra low floor noise High end power supply system.
INTEGRATED OTA
SGD1 can be connected to the server for software upgrading, which makes it very easy for users to upgrade software. OTA features give SGD1 the attributes of internet and make it more alive.
APT-X HD BL UETOOTH 5.0
SGD1 integrated CSR8675 Bluetooth module which support multiple audio en-coding formats such as LDAC,ACC,SBC,apt-X LL/HD. In LDAC encoding mode, SGD1 can achieve 24-bits 96kHz data transmission and get an ex- tremely quality wireless audio experience.
HIGH PERFORMANCE DIGITAL AND ANALOGUE CHIPS
SGD1 integrated AKM4118A as a digital audio transceiver that supporting 192kHz,24 bits and multicore USB2.0 interface XMOS XU208 which supporting PCM 768kHz,32 bits and DSD512(Native).
Not only that, SGD1 also use two ES9038 DAC to decode the left and right channels separately , meanwhile, two opa1612A and two RT6863S to implement the I/V and LPF circuits.
CONVENIENT INTERACTION AND OPERATION
Multi function knob button integrated all the functions and operations of SGD1. Such as Mute ,volume up and down , digital input switch , filter mode switch , OTA mode setting and on.
Of course, these functions can also be achieved through the IR remote control. The warm white LEDs and led strip will clearly indicate SGD1&x27;s current status.
OVERVIEW
Rear panel
1. XLR analogue output(Left and Right): 4.0Vrms @ 0dBFS XLR
2 . RCA analogue output(Left and Right): 2.0Vrms @ 0dBFS RCA
3. AES input: 24 bit/192kHz DSD64 AES
4. Coaxial input: 24 bit/192kHz DSD64
5. USB C input: 32 bit/768kHz PCM/up to DSD512(Native) USB Type C
6 . USB B input: 32 bit/768kHz PCM/up to DSD512(Native ) USB Type B
?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 output: 24 bit/192kHz DSD64
9. Voltage selector switch: Please check the correct voltage before using SGD1 and the wrong voltage will damage
?110V for AC 100~120V @ 50/60Hz 110V
?220V for AC 220~240V @ 50/60Hz 220V
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
Front panel
1. USB B input indicator USB B
2. USB C input indicator USB C
3. Bluetooth ( aptX HD 5.0 ) input indicator
4. AES input indicator AES
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 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
15. WiFi/Bluetooth antenna for system OTA
?Configure the network for SGD1
?Software upgrade over the air
?Control SGD1 by APP
16. IR receiving window for IR remote control
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
Update THD+N Ratio Sweep
SGD1 FAQs:
Q1: What other functions does SGD1 WiFi have besides upgradeing the system firmware?
A1: The WiFi function of SGD1 is only used to upgrade the system software, without any other functions, and there is no data collection behavior.
Q2: Are the XLR and RCA output at the same time?
A2: XLR and RCA are output at the same time, and the two interfaces can be connected to the power amplifier equipment (headphone amplifier/power amplifier) of the corresponding interface at the same time.
Q3: Can SGD1 be used as a pre-amp?
A3: The SGD1 is a high-performance DAC that can also meet the requirements of pre-amp applications.
Q4: Can I bypass the volume control directly?
A4: DAC internal modulators, filters, and volume controls cannot be bypassed,which is determined by the DAC chip.
Q5: Can SGD1 be used as a pure decoder?
A5: SGD1 can be used as a pure decoding device, adjusting the volume to the maximum.
Q6: Is the volume adjustment and mute function valid for all outputs?
A6: Volume adjustment and mute functions are only valid for analog output and not for digital output.
Q7: How does SGD1 handle DSD, direct output or PCM conversion?
A7: When the DSD source is playing, the DSD audio stream directly into the DAC chip with no transcoding in the middle.
Q8: What is the use of installing Thesycon custom driver?
A8: The customized USB driver supports PCM768KHz/DSD512 (Native). If you use the built-in driver of the system, there may be problems with high-spec audio sources that cannot be played.
Q9: How can I see the format of the audio source being played?
A9: Information about the currently playing audio source is displayed on the custom-driven control panel installed on the PC side.
Q10: Does SGD1 have a memory function?
A10: The volume and filter mode of each input source of SGD1 can store memories separately and the next power-on returns to the last setting.
Q11: How to reset the system?
A11: Press and hold the button for more than 6 seconds, all indicators are on and reset to the default power-on state.
Q12: The default volume for SGD1 and the adjustment of the stride.
A12: The default volume is -64dB, the encoder adjusts the volume stride is 0.5dB/Step, the maximum volume is 0dB. The volume of SGD1 can be realized by turning the knob quickly or long pressing remote control +/-.
Q13: How can I upgrade my SGD1 DAC?
A13: There are two ways to upgrade: mobile phone hotspot and mobile phone APP (Esptouch). Please refer to the SGD1 Upgrade Guide for details.
Q14: What is the power consumption of the whole machine?
A14: <8W.
Q15: When does WiFi turn on and off?
A15: SGD1 will configure the WiFi network before connecting each time it powered on. If the network exists, it automatically detects if there is new software and update, and then turn off the WiFi function, if the network does not exist, the WiFi will be turned off one minute after powering on.
Q16: When does SGD1 Bluetooth turn on?
A16: Bluetooth for SGD1 periodically scans the connected devices to ensure that they are automatically connected.
Q17: What formats of decoding does SGD1 Bluetooth support?
A17: Support APTX / APTX LL / SBC / AAC and other format.
Q18: What decoder chip does SGD1 use, and how many pieces are used?
A18: Each SGD1 uses 2 ES9038Q2M as audio decoding chips.
Q19: What operating systems does SGD1 support?
A19: Compatible with multiple operating systems Windows/iOS/Android/Linux/Volumio.
Q20: Has IMD Hump been resolved?
A20: Yes, all our products are hump-free.
Q21: Which drivers to use? XMOS or Thesycon?
A21: XMOS has removed and no useless.Thesycon support DSD512 and PCM768KHz.
Q22: How do I confirm what firmware I am running, or if the OTA upgrade succeeded?
A22: The user cannot see the version of the software. Under normal upgrade operation, if no new upgrade occurs, and judge as the latest version of the software.
Q23: Where can I install the latest drivers?
A23: Please download. http://www.soncoz.com/download.html/
Q24: What is the impedance of the XLR/RCA output?
A24: XLR output 200 Ω and RCA output 100 Ω.
Q25: How many output voltages for maximum volume?
A25: XLR 4.0Vrms and RCA 2.0Vrms.
Technical Support:
Expert support: support@smartfire.cn Skype: smartfire_cn
Product customization: support @ smartfire.cn
Forum:https://www.audiosciencereview.com/forum/index.php
Payment
1. If the payment is not available, your order will be closed automatically.
2. Seller are responsible for any insurance , problems and damage which caused by shipping service such accidents, delays or other issues.Besides the buyer should to be responsible for any tax and/or dutycharged by their country.
Shipping Choice
Self-Help Shipping Guide
Shipment
1. All item will be shipped within 48 hours on receipt of cleared payment.(The earlier you pay, the earlier we ship your order.)
2. If you need faster shipment, please choose DHL or EMS or FedEx IP(Shipping fare paid by yourself). Or we will deliver via the default method.
3. Please make sure that your shipping address is 100% correct
4. We ship items to worldwide with delivery time guarantee
Contact us
1.If you have any request please don&x27;t hesitate to contact us at first time we will help you and solve your issue within 24 hours.
2. All emails will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your email and we will reply you as soonas possible.
3. Warranty services are for replacements only, any problem please kindly email us frist, we will accept your advise & request.
Return&Refund
1.Refund or resend new for any orders due to the product quality problem.
2.We accept any unused item in its original package as return within 7 days of delivery. Buyers must provide the tracking number, specific reason forthe return.
3. if it&x27;s buyer&x27; s reason lead to the return package, buyers need to pay for round shipping fare.
4. We will refund to buyer after we receive the returns in its original condition package. Or buyers could choose to have a replacement.
FeedBack
1.As your feedback is really important to us, please take a few minute to leave the positive feedback if you are satisfied with our products and service .Also we will do the same for you ASAP. Thanks
2. Please don&x27;t hesitate to contact us before you leaving negative or neutralfeedback. We will try our best to resolve your problem and meet your need.