Loxjie A40 User manual

使用说明书
A40
本说明书的内容可能会随版本更改, 如有变动, 恕不另行通知, 如需最新说明,
请到http://www.loxjie-audio.com/download.asp下载最新版本的说明书。
Ver 1.1

A40
特点
固件及驱动下载：http://www.loxjie-audio.com/
技术支持
德国英飞凌新款数字大功率放大器芯片，更高质的同时，效率高，能耗低；
使用了日本JRC公司电子音量控制芯片NJW1194，精准的音量控制和超低
的失真度；
支持MQA解码，支持MQA-CD ;
全新第三代XMOS XU-316，PCM支持到32bit/768kHz，DSD支持到DSD256；
最新蓝牙支持LDAC，APTX/HD，SBC，AAC!
铝合金CNC加工面板工艺，采用阳极氧化技术，做工精细，触感一流；
人性化操作系统简单易懂，配备全功能遥控功能；
大量采用发烧级音频元件以提升主观听感；
高品质镀金输入、输出端子；
完善的过热，过流等保护电路；
内置高品质大功率音频专用开关电源。

技术参数
A40
接口：
输入方式 RCA , BT , USB , 光纤 , 同轴 , 唱放 ， HDMI(ARC)
音频特性：
THD+N 0.003%
信噪比 107dB
通道分离度 98dB
输入灵敏度/输入阻抗 280mV/22kΩ
输出功率 立体声 165Wx2(4Ω) / 85Wx2(8Ω)
音频规格：
USB传输方式 异步传输
USB兼容性 Windows 7 / 8 / 8.1 / 10 / 11, Mac OSX, Linux
MQA decoder USB / 光纤 / 同轴
MQA-CD decoder 光纤 / 同轴
位深
USB 1bit，16~32bit
光纤 / 同轴 1bit，16~24bit
采样率
USB PCM 44.1~768kHz
DSD 2.8224~11.2896MHz
光纤 / 同轴 PCM 44.1~192kHz
DSD DSD64(DoP)
其他：
消耗功率 40W(正常音量)
体积 243X42X177mm(WxHxD)
重量 1.62kg / 3.57lbs
规格时有变更，恕不另行通知。

关于遥控器
A40
注意：
如果遥控器距离本机很近时操作仍无效, 请用新电池更换。
如果要长时间不使用遥控器, 请取出遥控器的电池。
按照电池处置的地方性法规处置废旧电池。
遥控器请使用2节7号(AAA)电池。
遥控器使用距离5-8米。
蓝牙使用方法:
1. 连接: 将输入源切换至蓝牙, 打开手机蓝牙功能, 搜索 "LOXJIE A40", 搜索到后点击
连接, 当手机显示"已连接"则已连接成功。
开关机
静音/长按蓝牙重连
音量 +
音量 -
菜单/确认
功能切换
输出切换
输入源切换
熄屏
无功能
EQ切换
向上
向下

部件介绍
A40
67 8
15
913
10 11 12
16 17
5 4 3 2 1
功能旋钮
短按进入菜单；
长按退出菜单；
旋转改变数值或音量。
4.4mm耳机输出
6.35mm耳机输出
红外线窗
显示屏
唱机输入
线路输入
1
2
3
4
10
11
12
5
同轴输入
HDMI(ARC)输入
蓝牙天线
右声道输出
左声道输出
电源输入(100~240V AC)
接地
超低音输出
USB输入
光纤输入
13
6
8
9
14
15
16
17
14
7
*蓝牙配对方式：手机打开蓝牙配对，搜索并选择 “LOXJIE A40”，如果手机显示“已连
接”，则表示配对成功，如果无法配对成功，请操作蓝牙的清除功能，把A40之前连接
的蓝牙清除后，再重试。
**设备喇叭输出：连接喇叭时请注意极性，必须按产品标注的极性，以免影响音质!

EQ菜单：
功能及操作说明
A40
输入菜单：
输出菜单：
USB audio (USB输入)
Optical (光纤输入)
Coaxial (同轴输入)
Bluetooth (蓝牙输入)
ARC IN (HDMI(ARC)输入)
AUX IN (线路输入)
PHONO (唱机输入)
Speakers (喇叭输出)
Headphones (耳放输出)
Direct (直通)
Tone (由高低音调节决定)
Double Bass (双倍低音加强音效)
Bass (低音加强音效)
Super bass (低音超强音效)
Rock (摇滚乐音效)
Soft (柔和音效)
Clear (清晰音效)

功能及操作说明
A40
Treble高音调节范围：
8种字体颜色设定分别为：
-9dB~+9dB
Bass低音调节范围：
-9dB~+9dB
White (白色)
Red (红色)
Green (绿色)
Blue (蓝色)
Yellow (黄色)
Cyan (青色)
Orange (橙色)
Purple (紫色)
当EQ处于直通或其他EQ模式时, 调节高音, EQ模式会自动切换到Tone的状态。
当EQ处于直通或其他EQ模式时, 调节低音, EQ模式会自动切换到Tone的状态。
滤波器：
Fast and Low-latency filter (短延时陡降滤波器)
Fast and Phase-compensated filter (陡降相位补偿滤波器)
Slow and Low-latency filter (短延迟缓降滤波器)
Slow and Phase -compensated filter (缓降相位补偿滤波器)
Nonoversampling filter (非过采样滤波器)

蓝牙清除菜单：
Turn to clear (按遥控器上下键或者旋转旋钮以清除当前蓝牙配对设备)
熄屏设置：
Always ON (常亮)
Auto off (在无操作5秒后自动关闭屏幕)
恢复出厂设置:
机器在未通电状态下，按住开机键再通电，直到显示屏显示文字后，松开按键。
A40
功能及操作说明

关于MQA
A40
MQA（Master Quality Authenticated）是一项屡获殊荣的英国技术, 是一种兼有极高
的采样率和足够小的文件体积的高解析音频编码技术。 A40采用MQA技术, 可以接收
并解码MQA音频, 提供母带级别的声音。
有关更多信息, 请访问https://www.mqa.co.uk/how-it-works
如何播放MQA
A40的USB、光纤、同轴支持MQA解码！
A40的MQA播放不要求使用特殊的播放软件, 例如foobar2000，Audirvanaplus
只要 支持ASIO或者WASAPI的音频输出就可以了, 并且在播放MQA音频时, 最
好将电脑的音量调到最大, 以使得电脑的音频输出是最佳状态。
在播放MQA文件时, 显示屏显示的采样率为音频原始采样率。
和声波标志是MQA Limited的注册商标。©2016
播放MQA-CD注意事项
必须确认所播放的是一张真正的MQA-CD ;
确认CD播放器所输出的光纤或者同轴信号是未经处理的源码 。

The contents of this manual may change with the version, if there is any change
without notice, please go to http://www.loxjie-audio.com/download.asp
Download the latest version of the manual. Ver 1.1
Instruction manual
A40

A40
Features
Firmware and driver download: http://www.loxjie-audio.com/
Support
GermanInfineon'snewdigitalhigh-poweramplifierchiphashigher
quality,highefficiency,andlowenergyconsumption;
TheuseofJapan'sJRCelectronicvolumecontrolchipNJW1194,accurate
volumecontrolandultra-lowdistortion;
SupportMQAdecoding,supportMQA-CD;
ThenewthirdgenerationXMOSXU-316,PCMsupportto32bit/768kHz,
DSDsupporttoDSD256;
ThelatestBluetoothsupportsLDAC，APTX/HD,SBC，AAC;
AllaluminumalloyCNCprecisionprocessingshell,anodizingtechnology
andchamferingprocess,exquisiteworkmanshipanddelicatetouch;
Humanizedoperatingsystemissimpletounderstand,equippedwith
full-featuredremotecontrolfunction;
Alargenumberofaudiophileaudiocomponentstoenhancethe
subjectivesenseoflistening;
High-qualitygold-platedinput.Outputterminals;
Perfectoverheating,overcurrentprotectioncircuit;
Builtinhigh-qualityhigh-poweraudiospecialswitchingpowersupply.

A40
Specication
Interface：
Inputs RCA / BT / USB / Optical / Coaxial / Phono / I2S
Audio feature:
THD+N 0.003%
SNR 107dB
Channel separation 98dB
Input Sensitivity / Input Impedance 280mV/22kΩ
Output Power stereo 165Wx2(4Ω) / 85Wx2(8Ω)
Audio specications:
USB transmission Asynchronization
USB compatibility Windows 7 / 8 / 8.1 / 10 / 11, Mac OSX, Linux
MQA decoder USB / Optical/ Coaxial
MQA-CD decoder Optical/ Coaxial
Windows 7 / 8 / 8.1 / 10 / 11, Mac OSX, Linux
Bit depth
USB 1bit，16~32bit
Optical / Coaxial 1bit，16~24bit
Sampling rate
USB PCM 44.1~768kHz
DSD 2.8224~11.2896MHz
Optical / Coaxial PCM 44.1~192kHz
DSD DSD64(DoP)
Others：
Power Consumption 40W(normal volume)
Size 243X42X177mm(WxHxD)
Weight 1.62kg / 3.57lbs
Specications are subject to change without notice.

Remote control
A40
Note:
If the operation does not work even when the remote control is very close to the unit, please
replace it with a new battery.
If you do not want to use the remote control for a long time, please remove the batteries of
the remote control.
Dispose of used batteries in accordance with local regulations for battery disposal.
Please use 2 AAA batteries for the remote control.
Remote control operating distance: 5-8 meters.
How to use Bluetooth:
1. Connection: switch the input source to Bluetooth, turn on the Bluetooth function
of the mobile phone, search "LOXJIE A40", and click Connect after searching. When
the mobile phone displays "connected", the connection is successful.
Power ON/OFF
Mute/Long press to BT reconnect
Volume +
Volume -
Menu/OK
Function switch
Output switch
Input switch
Display dimmer
No function
Up/down select
EQ switch

Function knob
PRESS to enter the menu;
HOLD to exit the menu;
ROTATE to change the value or volume.
4.4mm headphone jack
6.35mm headphone jack
Remote window
Display screen
PHONO input
LINE input
Parts
A40
67 8
15
913
10 11 12
16 17
5 4 3 2 1
14
Coaxial input
HDMI(ARC) input
Bluetooth antenna
Right channel output
Left channel output
AC Power Input (100~240v AC)
Grounding
SW out
USB input
Optical input
1
2
3
4
10
11
12
5
13
6
8
9
14
15
16
177
*Bluetooth pairing: Open Bluetooth pairing on your cell phone, search and select "LOXJIE
A40", if the cell phone displays "Connected", it means the pairing is successful.If the
pairing is not successful, please operate the Bluetooth clear function to clear the
Bluetooth that A40 was connected to before, and then retry.
**Equipment speaker output: Please pay attention to the polarity when connecting the
speaker, it must be in accordance with the polarity labeled by the product, so as not to
aect the sound quality!

Function and operation instructions
A40
EQ：
INPUT SETTING
OUTPUT SETTING
USB audio
Optical
Coaxial
Bluetooth
ARC IN
AUX IN
PHONO
Speakers
Headphones
Direct
Tone
Double Bass
Bass
Super bass
Rock
Soft
Clear

Function and operation instructions
A40
Bass adjustment range:
-9dB ~ +9dB
When the EQ mode is Direct or other EQ mode, changing the Treble will change the EQ to
Tone mode.
When the EQ mode is Direct or other EQ mode, changing the Bass will change the EQ to
Tone mode.
Treble adjustment range:
-9dB ~ +9dB
FILTER:
Fast and Low-latency lter
Fast and Phase-compensated lter
Slow and Low-latency lter
Slow and Phase -compensated lter
Nonoversampling lter
COLOR:
White
Red
Green
Blue
Yellow
Cyan
Orange
Purple

Function and operation instructions
A40
BT clear:
Turn to clear
(Press the remote control up and down buttons or turn the knob to clear the
current Bluetooth paired device)
DIMMER:
Always on(Always on)
Auto o(automatically turns o the screen after 5 seconds of inactivity)
Restore Factory Settings：
Connect the power cord when pressing the power button, until the screen shows
the logo. Then stop pressing and restart the unit .

About MQA
A40
MQA (Master Quality Authenticated) is an award-winning British technology that delivers
the sound of the original master recording. The master MQA le is fully authenticated and
is small enough to stream or download. The A40 includes MQA technology, which
enables you to playback MQA audio les 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.
How to play MQA
A40 supports MQA decoding with USB, optical ber and coaxial!
A40'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 le, 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.