MUSiCiAN Taurus DAC R2R DSD Audio DAC User Manual

: June 16, 2024
: MUSICIAN

Table of Contents

Introduction
Product Information
Panel Information
Drive
LED light indication
Button Description
Taurus I2S pin configuration
Warranty
CUSTOMER SUPPORT
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

MUSiCiAN Taurus DAC R2R DSD Audio DAC

MUSiCiAN Taurus DAC R2R DSD Audio DAC

Introduction

Thank you for choosing MUSICIAN products!

Guangzhou LEZHIJIA Technology Co.,Ltd.(MUSICIAN Audio) was formally established 2020. The R & D team is formed by a group of enthusiasts with more than 20 years of audio research and development experience.
It is committed to the following product: R2R discrete balanced decoders, balanced headphone amplifiers, balanced amplifiers, balanced pre- amplifiers, headphones, passive speakers, and other audio products.

*Tips

Do not cover newspapers, tablecloths, curtains, etc. on the machine, as this may prevent heat dissipation. If the temperature inside the machine is too high, it may cause a fire, damage the machine, or cause personal injury. When using switches, knobs or cables, do not use excessive force.
Only use the voltage specified by this machine. Using a voltage higher than the specified value is dangerous and may cause fire, damage to the unit, or personal injury.
Do not attempt to modify or repair th is unit by yourself. If you need any service, please contact the MUSICIAN afterwar les team through the official website.
If you plan not to use the machine for a long time, disconnect the power cord from the AC wall outlet. To strengthen the protection of this product, unplug the power cord from the wall outlet during lightning, or when no one is managing it, and when not using it for a long time. This will prevent the product from being damaged during lightning and power grid surges.

Product Information

Technical Highlights R2R DAC

Proprietary R2R+DSD architecture, true balanced 24Bit R2R+6Bit DSD (32 step FIR filter).
Adopting AL TERA high efficiency chip. 0.005% precision resistor, low distortion, low noise power supply, FIFO buffer.
Each channel is equipped with an independent high-speed FPGA to control decoding through four sets of 0.005% R- 2R network with low linearity error, high decoding speed and low digital noise.
The self-developed and designed digital filter works in 16 X Over Sampling mode, with 32bit input resolution for each filter stage, which can greatly increase the dynamic contrast, analyzing power, and more natural and delicate tone, and so on.
Dual crystal design, can accurately reproduce audio signals of different sampling rates, jitter is greatly reduced and stability is significantly improved.
The power supply adopts chopper rectification, customized MUSICIAN brand red shell capacitors, equipped with O- type 250W iron core transformer, multiple LT1763, LT3045 for 2 times regulator filtering, can effectively isolate the linear regulator for digital and analog part of the multi-stage power supply, which ensures that the DAC can provide low noise and stable power supply voltage.
DSD1024, PCM 1536KHz supports USB and l.2S inputs (audio source needs to be compatible with t his unit’s interface).
Proprietary USB audio solution based on the STM32 F46 Advanced AMR microcontroller.
Sicyon USB driver licensed for Windows platforms
No drivers required for Mac and Linux

DSD
All inputs are 0S064 DoP, USB and I2S inputs are 0S01024.

PCM
All inputs are 24bits / 44.1 K, 48K, 88.2K, 96K, 176.4K, 192KHz.
USB & I2S inputs are 1536KHz.

Digital Input
Coaxial, Optical, AES, USB, I2S- 1, I2S- 2

Clock Output
45.1584MHz , 49.1 52MHz

Analog Output
XLR balanced, RCA single- ended

Please note that the Taurus RJ45/HDMI ports are not typical network/multimedia RJ45/HDMI ports. They are purpose-bui lt 12S ports. Do not connect them to a typical multimedia HDMI port (i.e. Blu-ray player/TV, etc.)/Ethernet network.
The 12S wiring sequence can be selected and matched using the panel buttons.

Panel Information

Input source selection.
Phase switching
On/Off/Standby
OS/NOS buttons
Mute switching
MODE button
XLR balanced output
RCA output
Clock output
Coaxial input
Optical input
AES input
12S input
USB input
Power connector

Drive

Taurus comes with a proprietary USB audio solution driven by the STM32F446.

License for Windows platforms Thesycon USB Driver
Download and install Thesycon USB Driver for Windows

1. Connect a standard USB cable from the PC USB port to the USB Input.
2. Select the USB Input.
3. Check the PC audio device panel to detect connection to the machine

No driver installation required on Mac and Linux No need to install the driver, just connect it and use it.
After connecting, in the sound settings, detect whether it is connected to the machine or not.

LED light indication

USB/I2S/ AES/OPT /COAX

Changes according to the sound source button
Light off: The sound source is not selected Light on: The sound source is selected
Running light: single cycle light up when mute status

STANDBY

Lamp off: power on status
Lamp on: standby status

| MODE

Lamp off: Clock has no output
Lamp on: Clock has output

PHASE

Light off: in phase
Light on: Reverse phase

| OS/NOS

Light off: OS / Light on: NOS

44.1 K/48K

Varies according to the sampling rate of the input signal

| DSD
Lights off: PCM audio/ lights on: DSD audio
Light off: The input signal is not at the sampling rate
Light on: The input signal is at this sampling rate
1 X/2X/4X/8X

Varies according to the sampling rate n times the frequency of the input signal
Light off: The input signal is not n times the frequency of the sampling rate
Light on: The input signal is n times the frequency of the sampling rate

Button Description

STANDBY| STANDBY light off : In the startup state, press standby
STANDBY light on : In standby mode, press to start
---|---
INPUT-| In homepage mode : press the button to select the audio source to the left
In menu mode : Press the button to enter the clock output function setting
In the clock output function setting : press the button to switch the clock output frequency
In other function settings : no response when pressing the button
INPUT+| In homepage mode: press the button to select the audio source to the right
In menu mode: no response when pressing the button
In the niter function settings: press the button to enter the USB upgrade function settings
In other function settings: no response when pressing the button
PHASE| In homepage mode: Press the button to switch between in phase and out phase
In menu mode: Press the button to enter the I2S pin function settings (you need to select the 12S audio source first)
In the I2S pin function setting: Press the button to switch the 12S pin
In other function settings: no response when pressing the button
OS/NOS| In homepage mode: Press the button to switch between OS and NOS
In menu mode: Press the button to enter the DSD left and right channel function settings
In DSD left and right channel settings: Press the button to switch between L/R and R/L
In other function settings: no response when pressing the button
MUT E| In homepage mode : Press the button to switch between mute and playback/ also to enter menu mode and homepage mode
In menu mode : Press the button to return to homepage mode
In function settings : no response when pressing the button
MO D E| In homepage mode : no response when pressing the button
In menu mode : Press the button to enter the filter function settings
In the filter function settings : press the button to switch between fast and slow roll down
In other function settings : no response when pressing the button

Function Setting Descript ion

| Function settings| Button operation| LED light indication
---|---|---|---
Filter function settings| Press the MUTE button to enter menu mode, then press the MODE button to enter filter f unction settings| MUTE button+ MODE button| BX light on
Press the MODE button in the filter f unction settings to switch between fast and slow roll down
(Note: After 5 seconds, no operation will automatically return to the homepage mode)| Switch with the MODE button| 1 X light off: rapid roll down
1 X light on: slow roll down
USB upgrade function settings| First select the USB audio source, then enter the niter function settings, and then press the lnput+ button to enter the USB upgrade function settings

(Note: Sett i ng the USB upgrade function cannot be exited and can only be turned off or powered off)

| Select USB audio source first>>>
MUTE>»MODE»>INPUT +| BX light on+ DSD light on
Press the Input+ button In the USB upgrade function settings to enter the upgrade status| Input+ button to start upgrading| USB light flashing+
COAX light f lashing: Start upgrading
12S pin function settings| First select any 12S audio source, then press the MUTE button to enter menu mode, and then press the PHASE button to enter 12S pin function settings| MUTE button + PHASE button| The selected 12S light is on+ the DSD light is on
Press the PHASE button in the 12S pin function settings to switch between 12S pins

( Note : After 5 seconds, no operation will automatically return to the homepage mode)

| PHASE button for switching| 1X(DATA), 2X(BCK). 4X(LRCK)
Lights off as positive
1X(DATA), 2X(BCK), 4X(LRCK) Light on as negative
DSD left and right channel function settings| Press the MUTE button to enter menu mode, then press the NOS button to enter DSD left and right channel function settings| MUTE button + NOS button| OPT light on + DSD light on
Press the NOS button in the DSD left and right channel function settings to switch between L/R and R/L| NOS button for switching| 44. 1 K light on: L/R
48K light on: R/L
Clock output

function settings

| Press the MUTE button to enter menu mode, then press the Input button to enter clock output function settings| MUTE button + Input button| DSD light on
Press the Input button in the clock output function setting to switch the clock output frequency

( Note : After’ 5 seconds, no operation will automa ti cally return. t o the homepage mode)

| Input- button for switching| 44.1 K light on
44.1 K light on
1X light on
2X light on
4X light on
Special functions| Button operation| LED light indication
---|---|---
AGING MODE| After turning on, the USB power supply mode is normally open (Note: Normal USB power, supply can be restored by shutting down powering off the power )| Simultaneously press and hold INPUT+, INPUT- , MODE|
View version number| Simply enter the USB upgrade function settings to view the current program version number
{Note: Setting the USB upgrade function cannot be exited and ** can only __**be turned off 0r powered off)| Select USB audio source first »>
MUTE» >MODE»>INPUT +| 44 .1K, 48K

(when the 44.1 li ght Is off. i t Indicates that the version **number has flashed out , and ‘when the 48K light is off, It I ndica tes that the revision ****number has flashed out.)-**

1X, 2X

( The number of flashes of l X light indicates the current version number and the number of 2x light indicates the current revision number)

12S Pin (Each I2S audio source corresponds to each 12S pin)

12S P i n ▶	1X (DATA)	2X(BCK)	4X(LRCK)

Taurus I2S pin configuration

Please note that there are no industry standards for I2S connections.
Different brands/products have different I2S line sequences.

If you use a standard HDMI cable, you can make it compatible with most devices through the following mode setting methods:

Select the audio source input to I2S-1 or I2S-2;
Press the PHASE button in the I2S pin function settings to switch the I2S pin.
Stop the operation after selecting a satisfactory sound, and the machine will automatically exit the mode setting function after 5 seconds.

Through the above I2S settings, MUSICIAN products can basically meet the needs of most brands on the market.

If the above settings prevent normal playback (such as hissing). This should not be considered a defective product, but rather a matching failure. The recommended solution is to use a customized HDMI cable (pin diagram on the right).
Taurus I2S pin configuration

Basic Parameters

Function buttons INPUT-、INPUT+、PHASE、STANDBY、OS/NOS、MUTE、MODE
Input method: Coaxial, Optical、AES、USB、I2S-1、I2S-2
Output method: XLR, RCA, external clock (45.1584MHz/49.152MHz)
Power input: 115V/60Hz ~ 230V/50Hz
Ba r e metal size: 420mm 380mm 95mm (W D H) (height includes base)

List of Packaging Items

Taurus *1	User manual * 1	Warranty Card * 1

Warranty

We take pride in the quality of our products with strict quality control checks.
To give you more confidence, all of our products are provided with a three- years warranty. Within the first 30 days from the date of purchase, most items can be returned for refund or exchange if meet the following conditions.
Wish you enjoy a wonderful shopping experience!

RETURNABLE ITEMS

Items that can be returned/ refunded or exchanged with in 30 days of receipt must comply with the following standards

Any returned items must be accompanied by all accessories, hardware, manuals or instructions, and in the same “new” state as when shipped to you.
Any returned items will be evaluated after receipt.
Of course, we will not refund any defective products caused by improper handling, improper use, tampering or improper use.
If there is no complete original packaging (original packing box, foam filing, etc.) at the time of return, 25%6 replenishment fee will be charged.
Tips: The items should be transported back safely.
Before we received, You will take full responsibility. If you choose to replace, we will ship your replacement items free of charge.

RETURN FEE AND ADDRESS

We aim to provide services that benefit all our loyal customers.
Global customers can return products to our Chinese warehouse.
Please always contact us before returning items to relevant addresses.

All transportation costs are borne by the customer.
This includes shipping costs for returns or exchanges.
Shipping costs are non- refundable.
Please contact your local post off ice to confirm the actual return shipping fee before shipping back. We recommend that you use the cheapest post al service if available.