SMSL C-200 DAC Headphone Amp User Manual

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USER MANUAL

The contents of this manual may be changed with the edition, and are subject to change without notice.

Safety Notes

• Install this unit in a well ventilated, cool, dry, clean place-away from direct sunlight, heat sources, vibration, dust, moisture, or cold..
• Use the voltage specified on this unit Only. Using this unit with a higher voltage than specified is dangerous and may cause fire , damage to this unit, or personal injury. Our company will not be held responsible for any damage resulting from the use of this unit with a voltage other than that specified.
• Do not attempt to modify or fix this unit by yourself. Contact alesperson or customer service when any service is needed. The cabinet should never be opened for any reason.
• When not planning to use this unit for long periods of time (i.e. when going on vacation), disconnect the power cable from the AC wall outlet.

Important note:
The product specifications and information mentioned in this manual are for reference only. The content of this manual is subject to change without notice.

Warranty Terms

1. The Term of Service
   Foshan Shuangmusanlin Technology Co., Ltd promises to offer good-quality products. If the product is broken in 7 days after purchasing when you use it normally, you can choose to send it back for return, replacement or repairing (only the product does not affect the second sales can be returned ). Repairing for free in one year if you use it normally.

2. Date of purchase is in accordance with the date on invoice or receipt uesd by seller, and if you buy it on line, you can show the screenshot of trade.

3. If an inappropriate usage causes the unit damaged, the warranty will be void. As below.
   • All damages by inappropriate use, including using it under non-normal working environment or without following the instructions.
   • Dismantling, refitting, repairing by user in private.
   • Causing damage by using some fittings instead of the designative or accredited ones.
   • Cannot provide credible proof of purchase.

4. Sending it back to our company for repairing.

5. Contact your S.M.S.L Audio reseller for a return or replacement.

Features

• Mini size design, very suitable for desktop use;
• CNC integrated milling process, simple and stylish;
• ESS Technology high-end D/A chip ES9038Q2M;
• Qualcomm latest Bluetooth chip supports LDAC 24bit/96kHz, APTX/HD, SBC, AAC;
• 4x high-end dual op amp OPA1612 and a large number of audio grade components;
• The 2nd generation XMOS solution supports DoP64 and native DSD512, and PCM supports up to 32bit/768kHz;
• Audio clock processing circuit, greatly reducing the clock jitter;
• Input ports (except Bluetooth) support DSD transmission, coaxial and optical supports DoP64;
• Built-in specially designed low-noise switching power supply;
• Built-in discrete component linear power supply and multiple low-noise power supplies for analog circuits;
• High-quality gold-plated input and output connection terminals;
• Japan Audio Association (JAS) Hi-Res certification;
• Equipped with full-function remote control.

Specifications

Input| USB / Optical / Coaxial / Bluetooth|
---|---|---
Output| 6.35mm headphone / 4.4mm headphone / TRS / RCA
Output Level| TRS|   4.0Vrms
| RCA|  2.0Vrms
Headphone output power| 16Ω| 2.6Wx2
| 32Ω|  1.3Wx2
Headphone Gain| low gain|  0dB
| high gain| 11dB
THD+N| line out| 0.0001% (-120dB)
| HP out|  0.00013% (-117dB)
Dynamic range| TRS|  126dB
| RCA| 125dB
| HP out| 123dB
SNR| TRS|  126dB
| RCA|  124dB
| HP out|  123dB
Output impedance| Line out| 100Ω
| HP out| Near 0Ω
USB transmission| USB1.1, USB2.0(Asynchronization)|
USB compatibility| Windows 7/8/8.1/10/11(Needs Driver)
| Android
Mac OSX10.6 or Later
Linux(Driverless)|
Bit depth| USB| 1bit
16~32bit
| Optical / Coaxial|  1bit
16~24bit
Sampling rate| USB|
Optical / Coaxial|  PCM|   44.1~768kHz
| DSD|    2.8224~22.5792MHz
|    PCM|   44.1~192kHz
|   DSD|   DSD64(DoP)
Bluetooth specification| 5.0
---|---
LDAC| 24bit/96kHz (990kbps/660kbps/330kbps)
aptX-HD| 24bit/48 kHz_576kbps
aptX| 16bit/44.1 kHz_352kbps
SBC| 16bit/44.1 kHz_328kbps
AAC| 16bit/44.1 kHz_320kbps
Power Consumption| 5W
Standby power| <0.5W
Size| 139x32x147.5mm(WxHxD)
Weight| 510g / 1.12Ibs

Specifications are subject to change without notice.

Remote control

• Install 2 x AAA batteries as instructions.
• When using the remote control, point it toward the remote con-trol signal receiver on the main unit from a distance of 5 m (16 ft) or less. Do not place obstructions between the main unit and the remote control.
• The remote control might not work if the remote control signal receiver on the unit is exposed to direct sunlight or bright light. If this occurs, try moving the unit. Beware that use of this remote control could cause the unin-tentional operation of other devices that can be controlled by infra.

Operating the remote control

Note
This remote controller use 2 x R03/AAA batteries.

Display Interface and Instructions

1. Display screen
2. Remote window
3. Function Knob
4. 4.4mm balanced headphone jack
5. 6.35mm headphone jack
6. AC power input(AC100-240V)
7. Bluetooth Input
8. USB Input
9. Optical input
10. Coaxial input
11. RCA output
12. TRS balanced output

Package list

1x S.M.S.L C200
1x Remote control
1x Bluetooth antenna
1x USB cable
1x AC power cable
1x User manual
1x Warranty card

Instructions

Knob Instructions:
Short press the knob (0.5-1 second) to enter the menu, short press the knob again to enter the next level menu, enter the menu to be adjusted, rotate left and right to select, when the selection is complete, press and hold for 2 seconds to exit to the main interface.

• Example: Select switching input: short press the knob to see the current input, then rotate left and right to select the desired input.

Function introduction

INPUT

• USB (USB input)
• BT (Bluetooth input)
• OPT (Optical input)
• COA (Coaxial input)

OUTPUT

• L o (Line output)
• H o (Headphone output)

GAIN

• G H (Gain high)
• G L (Gain low)

Function introduction

PCM FILTER

• FL1 (Fixed minimum phase fast roll-off)
• FL2 (Linear slow roll-off)
• FL3 (Apodizing Apodization Filter)
• FL4 (Minimum phase fast roll-off)
• FL5 (Minimum phase slow roll-off)
• FL6 (Linear fast roll-off)
• FL7 (Brickwall Mixing Filter)

DPLL

• DPLL 1~9, the lower the value, the smaller the clock jitter.
  This DPLL setting is a unique function of ESS series products. It can adjust the bandwidth of the DPLL digital phase-locked loop circuit inside the chip, so that the chip can achieve a balance between anti-clock jitter and input tolerance.
  Effect:

• When the clock stability of the input signal is good, this value can be reduced, so that the clock performance of the system is better;

• When the clock stability of the input signal is not good, the sound may be interrupted. Increasing this value can avoid the occurrence of audio interruption! Especially when using TV as the signal source.

USB MODE (USB Input)

• U1.0 MODE, U1.1 MODE
  1. All USB devices can be connected without driver.
  2. It can support the connection of various game consoles, such as XBOX, PS4, PS5 and so on.
  3. USB1.1 only supports up to 24bit/96kHz.

• U2.0
  (USB2.0 needs to install the driver when connecting to the WIN system, and supports high-standard sampling rate)

BRIGHTNESS (DISPLAY BRIGHTNESS SETTING)

• bL1-8 (Brightness Level 1~8, ‘The Smaller The Value, The Lower The Brightness.)

SMSL C200 Daily Use Questions

1. How to use C200?
   (1) C200 digital input has USB/optical/coaxial/Bluetooth, as well as 4.4mm/ 6.35mm headphone output and RCA/TRS audio output. Before playing audio, please confirm that the correct input and output modes have been set for C200.
   (2) The USB input of C200 has two modes. If you use the USB digital input of C200 to connect other devices, please confirm whether the C200 is in the correct USB mode.
   U1.1 mode, U1.1 mode:
   1.You can connect all USB devices without driver.
   2.It can support the connection of various game consoles, such as XBox, PS4, PS5 and so on.
   3. Note that USB1.1 only supports a maximum of 24bit/96kHz.
   U2.0 mode:
   Users who need to connect to a Windows computer need to install the driver on the computer. The C200 supports high-standard sampling rates.

2. How to solve the screen flickering problem?
   (1) Check the power socket and replace other power sockets;
   (2) Check whether the power connection is loose;
   (3) Please use the original power cord;
   (4) Reset the machine to restore factory settings.

3. How to solve intermittent audio interruption?
   (1) Reinstall the driver: When this problem occurs when the USB input of C200 is connected to a Windows computer, please uninstall the original driver and reinstall the DAC driver of C200 on the Windows computer to see if the problem can be solved.
   (2) DPLL setting: If you encounter this problem when using the optical/ coaxial input of C200, please adjust the DPLL value of the machine first to see if it can solve the problem.
   (3) Check connections: Make sure all connections are tight.
   (4) Check the power supply: Make sure the amplifier is getting enough power. Try plugging it into a different outlet or using a different power cord to rule out any issues with the power supply.
   (5) Check the audio source: try to play audio from other devices to see if there is a problem with the audio source. Also, check the audio settings on the source device to make sure it outputs the correct format and bit depth for the C200.
   (6) Check headphones/speakers: Try using different headphones or speakers to see if there is a problem with the C200 or the output device.
   (7) Reset the C200: Try resetting the C200 to factory settings to see if that fixes the problem.
   (8) Contact Customer Support: If none of the above steps work, you need to contact the seller for further assistance.

4. How to solve the problem that the C200 produces noise/stops playing audio?
   (1) Reinstall the driver: When this problem occurs when the USB input of C200 is connected to a Windows computer, please uninstall the original driver and reinstall the DAC driver of C200 to see if it can solve the problem.
   (2) DPLL setting: If you encounter this problem when using the optical/coaxial input of C200, please adjust the DPLL value of the machine first to see if it can solve the problem.
   (3) Check the audio source: Make sure the audio source you are using is not the source of the problem. Please try playing audio from another device to see if the issue persists.
   (4) Check the audio cable: A damaged or low-quality audio cable may interrupt the audio signal. Please try a different audio cable, or replace the current cable with a higher quality cable.
   (5) Check the volume level: If the volume level is too high, it may cause the C200 to shut down. Try lowering the volume on the C200 and the audio source to see if that fixes the problem.
   (6) Check the power supply: Make sure the C200 has enough power. Try plugging it into a different outlet or using a different power cord to rule out any issues with the power supply.
   (7) Check the earphones/speakers: The problem may be caused by faulty or damaged earphones/speakers. Please try a different headset or speakers to see if the problem persists.
   (8) Try resetting the C200: Resetting the C200 to factory settings may help resolve this issue.
   (9) Check the firmware: Make sure the C200 is running the latest firm are version.
   If not, update the firmware to see if that fixes the problem.
   (10) Contact Customer Support: If none of the above steps work, you Need to contact the seller for further assistance.

5. How to solve the problem of no sound from the headphone output?
   (1) Check the headphone connection: Make sure the headphone is properly connected to the 4.4mm or 6.35mm headphone output jack on the C200.
   If the connection is loose, it may ca use the sound to be interrupted.
   (2) Check the volume level: Make sure the volume level on the C200 is tumed up to an appropriate level. Sometimes the volume may be accidentally tumed all the way down, resulting in no sound being heard.
   (3) Check the source device: Make sure the source device (such as your computer or mobile phone) is set to output audio to the C200. You may need to adjust a setting on your source device to ensure it’s sending audio to the correct output.
   (4) Try a different headset: If the problem persists, try connecting a different headset to the C200 to see if the problem is with the headset itself.
   (5) Contact Customer Support: If none of the above steps work, you need to contact the seller for further assistance.

6. How to solve the problem that the remote control no longer works?
   1. Replace other batteries;
   2. Replace new batteries;
   3. Contact the seller to resend a new remote control;
   7. How to solve the problem that the USB cable/power cable does not work anymore?
   1. Replace other cables;
   2. Replace new cables;
   3. Contact the seller to resend a new USB cable/power cable;

7. How to restore the product to factory settings?
   When the power is not on, press and hold the volume knob, then use the power cord to supply power to the C200, and then release the knob until the screen lights up.

Ver 1.1

Documents / Resources

| SMSL C-200 DAC Headphone Amp [pdf] User Manual
C-200 DAC Headphone Amp, C-200, DAC Headphone Amp, Headphone Amp, Amp
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