Fosi Audio DAC-Q4 Manual de usuario

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Fosi Audio DAC-Q4 User Manual

Product Specifications

The Q4 is a compact mini digital/analogue audio converter

adapter with USB, optical and coaxial digital inputs, a classic

3.5mm headphone jack and RCA outputs, suitable for most

home audio systems. With bass and treble controls, it can be

used as a preamplifier or volume control for PC/MAC/Computer.

Fosi Audio Q4 ensures exquisite musicality, accurate and

realistic phasing, and reproduction of the original sound!

Output Type: 3.5mm Headphone, RCA

Chipset: SA9023+CS8412+

97220+NE5532

Optical/Coaxial

Sampling Rate:

24Bit/192kHz

Input Type: USB, Optical, Coaxial

USB Sampling Rate: 24Bit/96kHz

Headphone Impedance: 16-200Ω

RCA Output Level: 2.3V

Power Supply: 5V

THD: ≤0.01%

SNR: ≥105dB

Size (L*W*H): 73.5*98*33MM

Net Weight: 0.4kg

Product Overview & Control

Functions

3.5mm

Headphone

Output

Bass Control

Treble Control

Multi-function knob

1.Power Switch

2.Volume Switch

USB/Optical/

Coaxial Input Select

Power Indicator

Light

DC 5V Power

Input PC-USB Input

Optical

Input

Coaxial

Input

Audio Out

Package Contents

Fosi Audio DAC-Q4 ×1

5V USB Power Supply Cable ×1

PC-USB Cable ×1

Optical Cable ×1

User’s Manual ×1

Quick Setup

PC-Windows for example

Prepare: Q4, PC, AC adapter, PC-USB cable, Micro-USB cable,

Headphones.

Step 1: Connect the Micro-USB cable to the AC adapter, then

connect the Micro-USB cable to the Q4;

Step 2: Connect the Q4 to the PC via the PC-USB cable;

Step 3: Turn down the volume control to lowest level(turn off the

power switch)and connect the headphones to the 3.5mm

headphone jack;

Step 4: Adjust input mode selection key to select USB input mode;

Step 5: Turn on the power switch (turn up the volume);

(Note: The power switch is also the volume control knob.

Turn on: Turn the volume knob clockwise to the right;

Turn off: Turn the volume knob counterclockwise to the left

and adjust the volume to minimum.)

Step 6: Left click on the computer desktop sound icon and select

Device: “Fosi Audio Q4”(Digital HiFi Audio);

Step 7: Open the audio application, play and enjoy!

(Note: Before connecting the power supply, please turn down the

volume control to the lowest level, to avoid your hearing

from damage.)

Package Contents

Fosi Audio DAC-Q4 ×1

5V USB Power Supply Cable ×1

PC-USB Cable ×1

Optical Cable ×1

User’s Manual ×1

Quick Setup

PC-Windows for example

Prepare: Q4, PC, AC adapter, PC-USB cable, Micro-USB cable,

Headphones.

Step 1: Connect the Micro-USB cable to the AC adapter, then

connect the Micro-USB cable to the Q4;

Step 2: Connect the Q4 to the PC via the PC-USB cable;

Step 3: Turn down the volume control to lowest level(turn off the

power switch)and connect the headphones to the 3.5mm

headphone jack;

Step 4: Adjust input mode selection key to select USB input mode;

Step 5: Turn on the power switch (turn up the volume);

(Note: The power switch is also the volume control knob.

Turn on: Turn the volume knob clockwise to the right;

Turn off: Turn the volume knob counterclockwise to the left

and adjust the volume to minimum.)

Step 6: Left click on the computer desktop sound icon and select

Device: “Fosi Audio Q4”(Digital HiFi Audio);

Step 7: Open the audio application, play and enjoy!

(Note: Before connecting the power supply, please turn down the

volume control to the lowest level, to avoid your hearing

from damage.)

Optical for example

Prepare: Q4, AC adapter, Micro-USB cable, optical device (TV for

example), optical cable.

Step 1: Connect the Micro-USB cable to the AC adapter, then

connect the Micro-USB cable to the Q4;

Step 2: Connect the TV to Q4's optical interface via the optical

cable;

Step 3: Adjust the input selection button to select optical mode;

Step 4: Set the TV's optical output sound to RAW/PCM;

(NOTE: Due to different TV types, some TVs default Dolby

or DTS sound output, Q4 DOES NOT Support Dolby and

DTS sound, please select RAW/PCM Sound, otherwise you

will hear a lot of noise or no sound output.)

Step 5: Open the audio application, play and enjoy!

PC-Windows for example

Step 2Step 1 Step 3

Step 7 Step 4

Micro-USB

cable

AC adapte

Enjoy it!

Turn down

Step 5

Turn on

Turn up

Step 6

USB

“Fosi Audio Q4”

Optical for example

Prepare: Q4, AC adapter, Micro-USB cable, optical device (TV for

example), optical cable.

Step 1: Connect the Micro-USB cable to the AC adapter, then

connect the Micro-USB cable to the Q4;

Step 2: Connect the TV to Q4's optical interface via the optical

cable;

Step 3: Adjust the input selection button to select optical mode;

Step 4: Set the TV's optical output sound to RAW/PCM;

(NOTE: Due to different TV types, some TVs default Dolby

or DTS sound output, Q4 DOES NOT Support Dolby and

DTS sound, please select RAW/PCM Sound, otherwise you

will hear a lot of noise or no sound output.)

Step 5: Open the audio application, play and enjoy!

Coaxial for example

Prepare: Q4, AC adapter, Micro-USB cable, Coaxial device (TV for

example), Coaxial cable (no include).

Step 1: Connect the Micro-USB cable to the AC adapter, then

connect the Micro-USB cable to the Q4;

Step 2: Connect the TV to Q4's coaxial interface via the coaxial

cable;

Step 3: Adjust the input selection button to select coaxial mode;

Step 4: Set the TV's coaxial output sound to RAW/PCM;

(NOTE: Due to different TV types, some TVs default Dolby

or DTS sound output, Q4 DOES NOT support Dolby and

DTS sound, please select RAW/PCM sound, otherwise you

will hear a lot of noise or no sound output.)

Step 5: Open the audio application, play and enjoy!

Optical for example

Step 2Step 1

Step 3 Step 4

Micro-USB

cable

AC adapte

RAW/PCM

OPT

Coaxial for example

Step 2Step 1

Step 3 Step 4

Micro-USB

cable

AC adapte

Enjoy it!

RAW/PCM

COA

Troubleshooting/QA

1: How do I power the DAC-Q4?

• You will need to use the supplied Micro-USB cable to power it, we

recommend using the PC-USB port/5V power adapter to power it.

Note:The Micro-USB cable cannot be fully inserted into the

device power port, please do not force it. Subsequent

revisions have been made.

2: Why is it that all my wires are plugged in, but the Q4

RCA analog output is silent?

• At this point, you should check to see if the headphone output is

plugged into the headphone. If so, you should unplug the headset

to simulate RCA output.

3: Why do I get endless white noise?

• Please check that your input device is using Dolby/DTS audio,

please switch off Dolby/DTS audio and try again.

4: No Dolby/DTS audio and I still get noise through the

USB input?

• Please switch the USB port to USB 3.0 or back USB port and try

again, as some USB ports have unstable data transmission;

• Please try again with another computer;

• Please replace the PC-USB cable and retest, contact us for

compensation if the original cable is faulty;

• Please change the power supply adaptation and retest, why?

Because of the ageing of the power supply there may be an

abnormal power supply resulting in white noise. We recommend

using the PC-USB port/5V power adapter to power it.

Coaxial for example

Prepare: Q4, AC adapter, Micro-USB cable, Coaxial device (TV for

example), Coaxial cable (no include).

Step 1: Connect the Micro-USB cable to the AC adapter, then

connect the Micro-USB cable to the Q4;

Step 2: Connect the TV to Q4's coaxial interface via the coaxial

cable;

Step 3: Adjust the input selection button to select coaxial mode;

Step 4: Set the TV's coaxial output sound to RAW/PCM;

(NOTE: Due to different TV types, some TVs default Dolby

or DTS sound output, Q4 DOES NOT support Dolby and

DTS sound, please select RAW/PCM sound, otherwise you

will hear a lot of noise or no sound output.)

Step 5: Open the audio application, play and enjoy!

5: USB Device not recognized on Windows?

• Select Start, then type device manager in the Search box, and

then select Device Manager;

• Expand Universal Serial Bus controllers. Press and hold (or

right-click) a device and select Uninstall. Repeat for each device;

• Once complete, restart your computer. Your USB controllers will

automatically install.

If Windows update causes the device to be unrecognized, please

update all windows components and reboot, retest. Please

contact me for a solution.

6: How to do plug and play on Windows?

• Just click the sound icon in your notification area;

• Click the “Select playback device” option;

• Select the playback device “Fosi Audio Q4”(Digital HiFi Audio).

7: I can't play Spotify music in Plug and Play mode?

• Please exit the Spotify app and switch the playback device to the

computer's own sound card device, open Spotify and play,

confirm that it works and then switch the playback device to

DAC-Q4 "Digital HiFi Audio".

8: How do I get the highest 24Bit/96kHz resolution on my

PC?

• Right-click the PC sound icon in the lower right corner, open

Volume Mixer, click on the icon of the device/SPDIF: “Digital HiFi

Audio” to open the Properties, click the Advanced, select 24Bit,

96000Hz for maximum sound quality output.

9: Why do I get an intermittent sound?

• Please switch the USB port to USB 3.0 or back USB port and try

again, as some USB ports have unstable data transmission;

• Please replace the PC-USB cable and retest, contact me for

compensation if the original cable is faulty.

10: Why there is no sound when PC-USB connects to PC?

• First press the PC-USB operation to confirm whether the digital

playback output has been selected. If still no sound, you can

restart the computer and repeat the operation again, also please

make sure you had select correct device name on your PC sound

setting.

• Some computers' USB port are low quality on the front panel,

please change USB port to have a try, it's better use the USB port

on the back panel of the computer.

11: Why my device stopping working after short time use?

• Make sure your audio source and the headphones, amplifier or

powered speakers you connected are works well. And please

check all the connection of the input and output cables, please

change the audio source, output devices, cables to try again. Also

please check the power supply works or not.

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