S M S L VMV D2 High-Res Audio DAC Instructions

D2 High-Res Audio
DAC Instructions

The contents of this manual may be changed with the edition, and are subject to change without notice.
http://www.smsl-audio.com/

Safety notes

CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE THE COVER(OR BACK).

| The lightning flash with the arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
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****| The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
| Safe use only under the elevation of 2000m.

WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

Features

• Support MQA decoding.

• Flagship DAC chip AK4499, the audio industry’s highest performance.

• The THD+N is as low as 0.000068% (-123dB)!
  When using an A-weighted measurement, it is as low as 0.000058% (-124dB)！

• Dynamic range up to 131dB!

• USB uses the second XMOS XU216, which support native DSD, and 32bit 768kHz!

• The clock system uses 2 ACCUSILICON ultra-low phase noise crystal oscillators.

• Using ALTERA’s high-speed CPLD to process the clock and reduce the JITTER.

• A specially designed and enhanced power supply system provides ultra-low noise power supply with output noise as low as 1.8uVrms!

• The latest Bluetooth supports LDAC, APTX / HD, SBC, AAC, and the industry’s highest specification 24bit / 192kHz UAT format!

• Support LVDS level differential I2S reception (using HDMI interface), it can accept the lowest jitter digital audio!

• Users can update the system and USB firmware through the USB interface.

• Using color LCD screen and newly developed user interface, full-function remote control.

• Use USA ti’s opa1611, opa1612 top-level op-amp.

• Using lots of audiophile-grade components, high precision, low-temperature drift, and resistors and capacitors!

Specification

Input ……………………………………………………. USB / Optical / Coaxial / I2S / Bluetooth / AES/EBU
Output …………………………………………………………………….. RCA /XLR
Clock …………………………………………………………….BNC(50 Ohms)
Clock frequency………………………………………..10MHz / 11.2896MHz / 12.288MHz / 16.9344MHz …………………………25MHz / 27MHz / 33.8688MHz
THD+N ………………………………………………………0.000068%(-123dB)
…………………………………………………………………… 0.000058%(-124dB) (A-WTD)
Dynamic range ………………………………………….XLR 131dB RCA 125dB
SNR ……………………………………………………………………. 131dB
USB transmission …………………………………………..A synchronization
USB compatibility ………………………………………………..Windows 7 / 8 / 8.1 / 10, Mac OSX、Linux
Bit depth …………………………………USB / I2S 1bit， 16 ~ 32bit Optical / Coaxial / AES(EBU) 1bit， 16 ~ 24bit
Sampling rate ………………………USB / I2S PCM 44.1 ~ 768kHz DSD 2.8224 ~ 22.5792MHz Optical / Coaxial / AES(EBU) PCM 44.1 ~ 192kHz

Bluetooth specification：

UAT ………………………………………24bit/192kHz (1200kbps/900kbps/600kbps)
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 …………………………………………………<10W
Standby power …………………………………………………………………… <0.5W
Size ……………………………………………280X39X240mm (WxHxD)
Weight ……………………………………………………………3kg

Remote Control

Install CR2032 or BR2032 lithium 3V coin battery as instructions
When using the remote control, point it toward the remote control 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 the use of this remote control could cause the unintentional operation of other devices that can be controlled by infra.

1. Find the battery component on the back of your Remote.
2. Turn the battery door counterclockwise until the door opens
3. Remove the old battery.
4. With the positive side facing up toward you, put in the newCR2032 or BR2032 lithium 3V coin battery (available at most electronic and drug stores).

About MQA

SMSL VMV D2 includes MQA technology, which enables you to play back MQA audio files and streams, delivering the sound of the original master recording.
The LED glows green or blue to indicate that the unit is decoding and playing an MQA stream or file, and denotes provenance to ensure that the sound is identical to that of the source material. It glows blue to indicate it is playing an MQA Studio file, which has either been approved in the studio by the artist/producer or has been verified by the copyright owner.

MQA files playback

• The D1se supports MQA decoding on the USB interface.

• D1se’s MQA playback does not require additional software. You can use foobar2000 or Audirvana for MQA playback as it supports ASIO or WASAPI audio output. When
  playing MQA audio, it is suggested to adjust the volume of the computer to the maximum for the best audio output.

• The D1se LED next to the MQA logo glows green or blue to indicate that the unit is decoding and playing an MQA stream or file, and denotes provenance to ensure that
  the sound is identical to that of the source material. It glows blue to indicate it is playing an MQA Studio file, which has either been approved in the studio by the artist/producer or has been verified by the copyright owner.

• When playing an MQA file, the sampling rate of the original master recording is displayed.
  and the Sound Wave Device have registered trademarks of MQA Limited.© 2016

Functions

Main unit front

1. Multi-function knob
2. LED
3. Display
4. Input source select
5. Remote window
6. FN key

* Note: Knob

1. Kona: Volume/Menu up or down
2. Button: Press to Menu/Enter
   Hold to Return or Power ON/OFF

Main unit back

7. Optical input
8. Remote window
9. Balanced output
10. RCA output
11. AES/EBU input| 12. Coaxial input
13. I2S input
14. USB input
15. Clock input
16. Power input
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Operation Instructions

Main Display

1. Input selection
2. Audio output phase
3. Volume
4. Audio format / Sampling rate

1. INPUT

• USB AUDIO
• OPTICAL
• COAXIAL
• ABE/EBU
• I2S(HDMI)
• BLUETOOTH

2. OUTPUTS

• ALL Normal
• XLR Normal
• RCA Normal
• ALL Inverted
• XLR Inverted
• RCA Inverted

3. CLOCK MODE

• NORMAL

• EXTERNAL (USB)
  (This setting requires an external input clock signal, which only works for the USB input. The internal clock is used for other inputs. )

• EXTERNAL (ALL)
  (This setting requires an external input of a clock signal, which works on all inputs. When using, the signal source and D2 must use the same clock source at the same time to work synchronously, otherwise, it will cause noise!)

4. CLOCK FREQUENCY

• 10.0000MHz
• 11.2896MHz
• 12.2880MHz
• 16.9344MHz
• 25.0000MHz
• 27.0000MHz
• 33.8688MHz
• 256fs AUTO

5. SPDIF MODE
This setting is only valid for optical/coaxial interfaces which use SPDIF protocol；

• NORMAL
  NORMAL mode, only uses the digital receiver chip (DIR) to process the SPDIF signal, used in most occasions

• PROCESSOR
  PROCESSOR mode, in this mode D2, will use the XMOS processor to process the optical/coaxial signal so that it can have more powerful computing power and can handle various complex tasks including MQA, and DoP, in this mode, Play DoP audio, the DSD icon will be displayed correctly on the display.
  Note: do not switch this mode frequently, try to restart the machine after switching this mode, otherwise it may cause output noise.

6. PCM FILTER

• SHARP
• SLOW
• SHORT SHARP
• SHORT SLOW
• SUPER SLOW
• LOW DISPERSION SHORT

7. DSD FILTER

• NARROW （DSD64/37kHz, DSD128/74kHz）
• WIDE （ DSD64/65kHz , DSD128/131kHz）

Note: The frequency response of DSD256 is 238kHz, and DSD512 is 476kHz.
8. PRE MODE

• VOLUME VARIABLE
• VOLUME FIXED

9. I2S MODE

• NORMAL
• INVERTED

Note: This option is used to match different I2S interface standards, please check the interface definition of the signal source before use

10. I2S DSD CHANNEL

• DSDL=PCM DATA (The DSD left channel using the PCM DATA pin)
• DSDL=PCM LRCK (The DSD left channel using the PCM LRCK pin)

11. I2S DSD FLAG

• DSD FLAG=PIN15
• DSD FLAG=PIN14

12. FN KEY FOR

• Switch XLR/RCA
• ALL Outputs
• Bluetooth

13. DIMMER

• 5second ~ 60 second
  (The range is 5 seconds-60 seconds. After setting, the screen will automatically go off within this time, and the screen will re-light up if you operate the remote control or the knob at any time.)

14. BRIGHTNESS

• LEVEL1-6

15. RESET

• During Bluetooth input, long press the middle button of the knob, and the system will only reset the Bluetooth pairing status;
• During other input, long pressing the middle button of the knob, the system will clear all settings, including Bluetooth.

Bluetooth operating instructions

This product is equipped with a Bluetooth button, which is the FN button on the remote control, The functions of this button include:

• Short press: Switch directly to Bluetooth input, if Bluetooth loses connection, it is a reconnect;
• Long press: Disconnect the current device and allow pairing with other devices.

Connection:

• Step 1: Switch the input source in the SETTING MENU or press the Bluetooth button of the remote;
• Step 2: Turn on the Bluetooth function of the mobile phone, search for “VMV D2″, and tap to pairing. When the mobile phone displays “connected”, it has been successfully connected.

Re-connection:
When you had lost the connection with the D2, for example, going out, and back home, some phones will not re-connect the D2 if the D2 has not been re-boot, so you can press the Bluetooth button (FN) on the remote to Re-connect.

Clear pairing : Long press the“Bluetooth” button(FN) on the remote control. After clearing the pairing, some phones may no longer be able to search for “VMV D2″. In this case, you need to delete the Bluetooth device “VMV D2″ which is saved in the phone, and then search and pair again.

Factory Reset
Connect the power cord when pressing the power button, until the screen shows logo.

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 repair (only the product does not affect the second sales can be returned ). Repairing for free in one year if you use it normally.

2. The date of purchase is in accordance with the date on the invoice or receipt used by the seller, and if you buy it online, you can show a screenshot of the trade.

3. If inappropriate usage causes the unit damaged, the warranty will be void. As below.
   • All damages by inappropriate use, including using it in a non-normal working environment or without following the instructions.
   •  Dismantling, refitting, and repairing by the 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.

References

• SMSL Audio Official -Professional audio product manufacturer

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