S M S L VMV D2R Stereo Audio DAC User Manual

: July 19, 2024
: S M S L

Table of Contents

Features
Specification
Remote Control
Functions
Bluetooth operating instructionst
About MQA
MQA files playback
Notes on playing MQA-CD
Instructions
Safety notes
Warranty Terms
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

D2R
USER MANUAL
http://www.smsl-audio.com/
Ver 1.0
The contents of this manual may be changed with the edition, and are subject to change without notice.

Features

Use Rohm’s ﬂagship DAC chip BD34301EKV, and fully optimize its performance to make its THD+N as low as-117dB;
USB uses XMOS XU-316, a real 32bit USB solution, PCM supports up to 768kHz, and DSD supports up to DSD512
The all-new CK-03 clock processing circuit achieves ultra-low clock jitter, making the clock jitter of ﬁber coax as excellent as USB;
Customized low noise porcupine linear power supply;
The specially designed discrete component stabilized power supply and multiple low-noise stabilized power supplies provide low-noise power supply for analog circuits;
Qualcomm’s latest Bluetooth chip supports SBC, AAC, aptX, aptX HD, LDAC;
High-quality gold-plated input and output connection terminals;
Newly designed high-quality knobs;
Use tempered glass display panel, higher light transmittance, longer service life;
Equipped with remote control and full function remote control.
Japan Audio Society (JAS) Hi-Res certiﬁed.

Specification

Input…………………………………………………………..USB/Optical/Coaxial/I2S/Bluetooth/AES
Output……………………………………………………………………………………………………….RCA/XLR
Output Level………………………………………………………………………….XLR 4.0Vrms(Vol Fixed)
5.1Vrms(Vol variable) …………………………..RCA 2.0Vrms(Vol Fixed) 2.6Vrms(Vol variable)
THD+N…………………………………………………………………………………………0.00014% (-117dB)
Dynamic range…………………………………………………………………………XLR 129dB RCA 125dB
SNR………………………………………………………………………………………..XLR 129dB RCA 124dB
Output impedence……………………………………………………………………..XLR 200Ω RCA 100Ω
USB transmission…………………………………………………………………………….Asynchronization
USB compatibility …………………………………..Windows 7 / 8 / 8.1 / 10 / 11, Mac OSX, Linux
Bit depth………………………………………..USB 1bit，16~32bit Optical/Coaxial b1it，16~24bit
Sampling rate………………………………………………………………………….USB PCM 44.1~768kHz
DSD 2.8224~22.5792MHz
Optical/Coaxial PCM 44.1~192kHz
Bluetooth speciﬁcation……………………………..5.1(Supports SBC,AAC,aptX,aptX HD,LDAC)
Power consumption………………………………………………………………………………………………5W
Standby power…………………………………………………………………………………………………<0.5W
Size………………………………………………………………………………….280×235.5x43mm(WxHxD)
Weight…………………………………………………………………………………………………3.2kg/7.05Ibs

Specifications are subject to change without notice.

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 use of this remote control could cause the unintentional operation of other devices that can be controlled by infra.

Find the battery component on the back of your Remote.
Turn the battery door counterclockwise until the door opens
Remove the old battery.
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).

Functions

S M S L VMV D2R Stereo Audio DAC - Functions

1. Multi-function knob
2. Remote window
3. Indicator light
4. Display
5. XLR output
6. AES input
7. RCA output| 8. Coaxial input
9. Optical input
10. USB input
11. I2S input
12. Bluetooth antenna
13. AC IN（100V-24V AC）
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Bluetooth operating instructionst

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 D2r”, 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 D2r, for example, going out, and back home, some phones will not re-connect the D2r if the D2r 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 D2r”. In this case, you need to delete the Bluetooth device “VMV D2r” which saved in the phone, and then search and pairing again.

About MQA

MQA (Master Quality Authenticated) is an award-winning British technology that delivers the sound of the original master recording. The master MQA ﬁle is fully authenticated and is small enough to stream or download. Includes MQA technology, which enables you to playback MQA audio ﬁles and streams, delivering the sound of the original master recording.
Visit How it works https://www.mqa.co.uk/how-it-works for more information.

MQA files playback

D2R supports MQA decoding with USB, optical ﬁber and coaxial!
D2R’s MQA playback does not require the use of special playback software, such as foobar2000, Audirvanaplus only needs to support ASIO or WASAPI audio output, and when playing MQA audio, it is best to adjust the volume of the computer to the maximum, so that the audio output of the computer is in the best condition.
When playing an MQA ﬁle, the sampling rate of the original master recording is displayed.
and the Sound Wave Device are registered trade marks of MQA Limited.© 2016

Notes on playing MQA-CD

Please make sure that what is being played is a genuine MQA-CD.
Verify that the optical or coaxial signal output of the CD player is an unprocessed source code.

Instructions

INPUTS

USB
BLUETOOTH
OPTICAL
COAXIAL
AES/EBU
I2S(HDMI)
Note: The I2S interface is not a real HDMI interface. It just uses the HDMI cable to transmit it, so it cannot connect the real HDMI interface.

OUTPUTS

ALL LINE OUT
BALANCED
UNBALANCED

PCM FILTER

SLOW ROLL-OFF
SHARP ROLL-OFF

DSD FILTER

13K CUTOFF
26K CUTOFF
52K CUTOFF

SOUND COLOR

LOW OSR+HPC ON
LOW OSR+HPC OFF
HIGH LOW OSR+HPC ON
HIGH LOW OSR+HPC OFF

PRE MODE
PRE MODE is the volume adjustment function switch for the output interface.

VARIABLE: The output interface volume is controlled.
FIXED: The output interface volume is ﬁxed.

FN KEY FOR

OUTPUTS
BLUETOOTH
PHASE

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)
Note: When using the I2S input to streaming DSD audio, if you ﬁnd that the left and right channels are incorrect, you can use this option to correct it.

I2S MODE

NORMAL(NORMAL, PS AUDIO FORMAT)
REVERSED(INVERTED, DATA AND LRCK INVERTED)

S M S L VMV D2R Stereo Audio DAC - Functions 2

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

AUDIO PHASE

NORMAL (2+,3-)
INVERTED (2-,3+)

DIMMER

5 second ~ 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.)

BRIGHTNESS

LEVEL 1 ~ LEVEL 6

RESET

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

Safety notes

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

| The lightning flash with arrowhead symbol, with in 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 elevation 2000m.

WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.
The contents of this manual are updated without prior notice. If the function of the product you are using is inconsistent with the instructions, the function of the product shall prevail!

Warranty Terms

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.
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.
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.
Sending it back to our company for repairing.
Contact your S.M.S.L Audio reseller for a return or replacement.