Soncoz QXD1 User manual

User Manual V2.0
May. 2022
®
The Power of Original Sound
QXD1
ENTRY-LEVEL FULLY-BALANCED DAC

Welcome to QXD1, a high-performance DAC developed and manufactured by
SONCOZ technology in Shenzhen, PRC.
Please take a few moments to familiarize yourself with its operation.
Front Panel
01
01 OVERVIEW
Rear Panel
1 XLR output: 4.0Vrms @0dBFS
2 RCA output: 2.0Vrms @0dBFS
3 Coaxial input: 24-bit/192kHz
4 Coaxial output: 24-bit/192kHz
5 USB-B input: 32-bit/768kHz PCM/DSD512(Native)
6 Toslink input: 24-bit/192kHz
7 Power in: USB-C
1 Toslink input indicator(TOS)
3 USB-B input indicator
5 Audio inputs switching button
7 Volume up button
2 Coaxial input indicator(COAX)
4 Power/Mute(Flash) indicator
6 Volume down button
8 Mute button

02
2 Volume down and up (the default volume is -60dB)
Short press the “-” or “+” button can adjust volume
Long press the “-” or “+” button can adjust volume quickly
When adjusting the volume, the corresponding input channel indicator will
blink until the volume is adjusted to the maximum or minimum
1 Audio inputs switching
Three audio inputs switching by press the setting button and the
corresponding indicator LED will be turned on
3 Mute analogue output XLR/RCA
Short press the “Mute” button QXD1 will mute output and press again
will quit mute
Mute only works for analogue output and the power indicator flashes in
mute mode
4 Filter modes switching
7 kinds of filter modes, press the “Mute” button for 2 seconds to switch
one of them
From beginning to end: APOD/BRIC/FAM/FAL/HYER/SLM/SLL
02 OPERATIONS
03 SPECIFICATIONS
1 Dimensions: 149.3mm(W) x 87mm(D) x 37mm(H)
2 Weight: 475g
3 Power input: DC 5V 1A
4 Power consumption: <4W
5 Signal input: USB-B/Toslink/Coaxial
6 Digital output: Coaxial

03
7 Line out: XLR/RCA
8 RCA: Coaxial input
9 Frequency response: 20Hz~20KHz(±0.15dB) XLR/RCA
10 Dynamic range: >124dB A-Weighted
11 Output voltage: 4.0Vrms XLR/2.0Vrms RCA
12 THD+N: <0.00015% @1kHz XLR/RCA
13 Crosstalk: >141dB @1kHz XLR/RCA
14 Output impedance: 200Ω XLR/100Ω RCA
15 Noise floor modulation: <4.3 μVrms
04 TYPICAL APPLICATIONS
1 DAC application

04
1 QXD1 X 1 2 USB-B Cable X 1 3 USB-C Cable X 1
4 User’s Manual X 1
Note: You can download drivers on SONCOZ website: www.soncoz.com
05 CONTENTS LIST
06 FAQS
2 Digital interface application
Q1: Can I use the computer USB port to power QXD1?
A1: No. The PC's own USB port for power supply is not enough to support the
normal operation of QXD1 (DC:5V@1A).
Q2: Can it remember the volume and different filter choices for each input?
A2: No. It will return to the default state after powering on/off.

05
Q3: How can I switch between the different filter modes of the QXD1 DAC?
A3: Long press the Mute button for 2 seconds to adjust the filtering mode.
Q4: How can I know which filter was selected?
A4: The three LED indicators of TOS/COAX/USB will be displayed in combination.
Refer to the QXD1 DAC filter mode truth table.
Q5: How do I determine if the volume is turned up to the maximum?
A5: Press the "+" button to increase volume, while the corresponding LED
flashes until it reaches the maximum to stop flashing.
Q6: Can I connect my headphones directly to QXD1?
A6: It is not recommended to use as a headphone amplifier.
Q7: What are the default volume and adjustment step of QXD1?
A7: The default volume is -60dB, the maximum volume is 0dB and the
adjustment step is 2dB/Step.
Q8: Can I set the volume to the default maximum?
A8: Yes. Please refer to the QXD1 Upgrade Guide for details.

用户手册 V2.0
2022年5月
®
The Power of Original Sound
QXD1
入门级全平衡解码器

QXD1是一款由松果音视(深圳)科技有限公司(SONCOZ)开发设计与制造的
高性能解码器。我们花几分钟时间来熟悉它的操作。
前面板
06
01 概述
后面板
1 光纤输入指示灯(TOS)
3 USB-B 输入指示灯
5 音源输入切换按键
7 音量增加按键
2 同轴输入指示灯(COAX)
4 电源/静音(闪烁)指示灯
6 音量减小按键
8 静音按键
1 XLR 平衡输出:4.0Vrms @0dBFS
2 RCA 单端输出:2.0Vrms @0dBFS
3 同轴输入:24位/192kHz
4 同轴输出:24位/192kHz
5 USB-B 输入:32位/768kHz PCM/DSD512(Native)
6 光纤输入:24位/192kHz
7 电源输入:USB-C

3 模拟输出静音
短按“静音”按键QXD1模拟输出将静音,再一次短按退出静音
静音只对模拟输出有效,静音时电源指示灯会闪烁
2 音量减小与增加(默认音量为-60分贝)
短按“-”或者“+”按键可以调整音量
长按“-”或者“+”按键可以快速调整音量
调整音量的时候相应指示灯会闪烁直到音量调整到最大或者最小
1 音源输入切换
3种输入音源通过设置按键进行切换,同时相应的输入通道指示灯会亮起
07
4 滤波模式切换
7种滤波模式,每长按“静音”按键2秒切换一种
从开始到结束分别是:APOD(默认)/BRIC/FAM/FAL/HYER/SLM/SLL
1 尺寸:149.3mm(宽) x 87mm(深) x 37mm(高)
2 重量:475g
3 电源输入:直流 5V 1A
4 功率消耗:小于4W
5 信号输入:USB-B/光纤/同轴
6 数字输出:同轴
7 线路输出:平衡XLR/单端RCA
03 规格参数
02 操作和设置

04 典型应用
08
8 RCA接口:同轴输入
9 频率响应:20Hz~20KHz(±0.15dB) XLR/RCA
10 动态范围:A计权平衡XLR/单端RCA输出大于124dB
11 输出电压幅值:平衡XLR输出4.0V/单端RCA输出2.0V
12 失真加噪声:1kHz平衡XLR/单端RCA输出小于0.00015%
13 通道串扰:1kHz 平衡XLR/单端RCA输出大于141dB
14 输出阻抗:平衡XLR输出200Ω/单端RCA输出100Ω
15 底噪:小于4.3 微伏
1 纯解码及前级应用

2 数字接口/数字转盘
1 QXD1主机一台 2 USB-B数据线一条 3 USB-C数据线一条
4 用户使用手册
注意:驱动可以在官网www.soncoz.cn下载
05 包装内容
06 常见问答
问1:可以用电脑自带的USB口给QXD1供电吗?
答1:不建议使用PC电脑自带的USB口进行供电,PC自带的USB电流一般是
500mA,不足以支撑QXD1的正常工作(DC:5V@1A)。
09

10
问2:QXD1能记忆音量以及滤波模式吗?
答2:QXD1不具备记忆功能,断电开机回到默认状态(USB口输入、默认滤波
模式APOD、USB转数字同轴有效、音量-60dB)。
问3:如何切换滤波模式?
答3:每长按静音按键两秒切换一种滤波模式。
问4:如何确认当前选择的滤波模式是哪一种?
答4:TOS/COAX/USB三个LED指示灯将组合显示,参考QXD1 DAC滤波模式
设置真值表。
问5:如何确定音量调到最大值?
答5:长按音量“+”/“-”可以快速地调整音量大小,调整音量时相应的通道指示灯
会闪烁,直到音量到最大或者最小时停止闪烁。
问6:可以将耳机直接连接到 QXD1吗?
答6:不建议用作耳机放大器。
问7:QXD1的默认音量以及调整步幅?
答7:默认音量是-60dB,最大音量0dB,调整音量步幅是2dB/Step。
问8:QXD1可以设置默认最大音量吗?
答8:可以刷新音量最大固件,操作细节请参考QXD1升级说明。
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