S.M.S.L A300 User manual

使用说明书
A300
Ver 1.0
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https://smsl-audio.com/portal/product/support
下载最新版本的说明书。

请将本音响系统安装在通风良好、阴凉、干燥、干净的位置，远离直射阳光热源
、振 动 、灰 尘 、 潮湿或寒冷。
只能使用本机指定的电压。使用高于指定数值的电压很危险，而且可能导致火
灾，损坏本机或造成人身伤害。对于使用高于指定电压造成的任何损害，
我司
将不负任何责任。
不要试图自行改造或修理本机。如果需要任何服务，请与销售或者我司客服人
员联系。不管有任何理由，都没有打开机壳的必要。
如果打算长时间不使用本机（比如度假时），请从墙壁交流电源插座上断开电
源线的连接。
一、服务期限
佛山双木三林科技有限公司承诺产品的良好品质，产品自售出之后7天内
正常使用情况下出现故障，客户可以选择退货或者保修（不影响二次销售
才可退货）。正常使用一年内出现故障可以免费保修。
二、购买日期以销售商开出的购机发票或收据日期为准，网购可以交易截图为准。
三、有以下情况都不能享受“三包”服务
1.一切人为因素损坏，包括非正常工作环境下使用或不按照说明书使用。
2.用户私自拆机、改装、维修。
3.使用非指定或许可的配件造成损坏的。
4.机身的QC或保修贴损毁。
5.不能出示有效购机凭证。
6.不属于本公司产品。
四、保修方式为送修
此条款只适于中国大陆，其它地区请参考当地销售代理商的规定和国家法规。
重要提示：
本说明书所提到的产品规格和资讯仅供参考。如有内容更新，恕不另行通知。
安全注意事项
保修条款
A300

A300
特点
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NJRC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；
可 桥 接（ BTL）成更大功率的单通道功放，来驱动大音箱。
内置SMSL SDB专利音效和高/低音调节功能，轻松匹配各种喇叭和音乐；
内置高通滤波电路，滤除超低音，驱动主音箱，配合超低音组成2.1系统。
具备超低音信号前级输出，方便连接有源低音炮组成2.1系统。
蓝牙5.0接收，更远的传输距离，音质更好!
全铝合金CNC加工工艺，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
A300
SMSL保留在不另行通知的情况下进行可能导致规格或特性更改的改进的权利。
输入接口 ................................................................................. RCA , BT , USB
THD+N ...............................................................................................0.004%
信噪比 ...................................................................................................103dB
通道分离度 ............................................................................................. 85dB
高通模式时，截止频率 .............................................................................50Hz
输入灵敏度/输入阻抗..................................................................280mV/22kΩ
输出功率
立体声........................................................165Wx2(4Ω) / 85Wx2(8Ω)
BTL .............................................................................330Wx1(4~8Ω)
消耗功率 ..................................................................................40W(正常音量)
体积 ...........................................................................210.5X41X198mm(WxHxD)
重量................................................................................................1.3kg / 2.86Lbs

遥控器的使用
注 意
遥控器请使用2节7号(AAA)电池
开关机
关于遥控器
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。
A300
音量加
音量减
进入二级菜单
向上
返回
向下
静音
FN按键
输入选择
进入菜单/确认

部件介绍
A300
菜单按钮 开关机按钮
5 6
模拟输入1 9
7模拟输入2 8
显示屏 红外接收窗 旋钮
输入按钮
12 3
4
BTL时的右声道输出
USB输入
10 蓝牙天线
11 右声道输出 12
左声道输出
13 电源输入 14 超低音输出
15
菜单按钮 开关机按钮
5 6
模拟输入1 9
7模拟输入2 8
显示屏 红外接收窗 旋钮
输入按钮
12 3
4
BTL时的右声道输出
USB输入
10 蓝牙天线
11 右声道输出 12
左声道输出
13
53 4 6
2
1
7 8 9 10 11 12 13 14
电源输入
14
15
超低音输出
15

开机时会显示 意思为A300。
在切换输入会显示
3种EQ菜单
在高音调节会显示 ← →
在低音调节会显示 ← →
3种亮度调节 ， ，
立体声模式 ，桥接(BTL)模式
全频模式 ， 高通模式
音量显示 ， ...
*静音时音量为闪烁状态
操作说明
A300
菜单介绍
线路输入1 线路输入2 蓝牙输入 电脑输入
Direct（直通） Tone（自定义）
SDB（SMSL专利音效） 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）

进入菜单方法
操作说明
A300
短按MENU键进入不同的选项，旋转旋钮进行选择，选择之后长按MENU退出；
使用遥控器进入菜单，进行选择。
IN1和IN2使用说明
模拟信号RCA输入到IN1或者2, A300选择对应的输入，播放音乐。
USB使用说明
使用配套的USB线连接电脑，A300选择USB模式，电脑的声音选项将USB AUDIO
选择为输出，建议将电脑音量最大。
BT使用方法
切换到bt，手机打开蓝牙，搜索名称SMSL BT5.0C，点击连接，手机播放音乐，
建议将手机音量调到最大使用。
桥接模式使用说明
断电状态下请先将喇叭线和IN1/2的L通道连接好，通电选择br1，此时根据
输入信号切换到IN1/2，播放音乐。
（桥接模式下 ，只有IN1/2的L通道输入信号）

BTL-R说明
操作说明
A300
桥接模式下，IN1/2的声道接了信号，BTL-R就会输出IN1/2的右声道信号。
SW说明
输出重低音信号，需要连接有源低音炮。
高通模式HF1说明
立体声模式下，选择高通模式，那么立体声就删除了重低音部分，SW接上
有源低音炮，组成2.1音箱。

USER MANUAL
A300
Ver 1.0
The contents of this manual may change with the version,
if there is any change without notice,
please go to https://www.smsl-audio.com/portal/product/support
Download the latest version of the manual.

Install this unit in a well ventilated, cool, dry, clean place-away from direct sunlight, heat
sources, vibration, dust, moisture, or cold..
Use the voltage specified on this unit Only. Using this unit with a higher voltage than
specified is dangerous and may cause fire , damage to this unit, or personal injury. Our
company will not be held responsible for any damage resulting from the use of this unit
with a voltage other than that specified.
Do not attempt to modify or fix this unit by yourself. Contact alesperson or customer
service when any service is needed. The cabinet should never be opened for any reason.
When not planning to use this unit for long periods of time (i.e. when going on vacation),
disconnect the power cable from the AC wall outlet.
Important note:
The product specifications and information mentioned in this manual are for reference
only. The content of this manual is subject to change without notice.
1.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.
2.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.
3.If an inappropriate usage causes the unit damaged, the warranty will be void. As below.
4.Sending it back to our company for repairing.
5.Contact your S.M.S.L Audio reseller for a return or replacement.
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.
Safety Notes
Warranty Terms
A300

Features
A300
German Infineon's new digital high-power amplifier chip has higher quality,
high efficiency, and low energy consumption;
Using Japanese NJRC company electronic volume control chip NJW1194,
precise volume control, and ultra-low distortion;
It can be bridged (BTL) into a single-channel amplifier with a higher power to
drive large speakers;
Built-in SMSL SDB patented sound and treble/bass adjustment for easy
matching of a variety of speakers and music;
The built-in high-pass filter circuit can filter out the subwoofer, drive the main
speaker, and cooperate with the subwoofer to form a 2.1 system.
With subwoofer signal pre-output, it is convenient to connect the active
subwoofer to form 2.1 system;
New Bluetooth 5.0 reception, better sound quality, longer transmission
distance!
All aluminum alloy CNC precision processing shell, anodizing technology
and chamfering process, exquisite workmanship and delicate touch;
The user-friendly operating system is easy to understand, equipped with
full-featured remote control function;
A large number of audiophile-grade audio components are used to enhance
the subjective sense of hearing;
High quality gold-plated input and output terminals;
Perfect protection circuit for overheating, overcurrent, etc.
Built-in high quality power supply, specially designed for audio!

Specifications
A300
SMSL reserves the right to make improvements which may result in
specification or feature changes without notice.
Input ......................................................................................... RCA , BT , USB
THD+N ................................................................................................0.004%
SNR .........................................................................................................103dB
Channel separation ................................................................................... 85dB
Cutoff frequency (in high pass mode) ........................................................50Hz
Input Sensitivity / Input Impedance................................................280mV/22kΩ
Output Power
stereo...........................................................165Wx2(4Ω) / 85Wx2(8Ω)
BTL ..............................................................................330Wx1(4~8Ω)
Power consumption...........................................................40W(normal volume)
Size ..............................................................................210.5X41X198mm(WxHxD)
Weight.............................................................................................1.3kg / 2.86Lbs

Operating the remote control
Note
This remote controller use 2 x R03/AAA batteries.
Remote control
Install 2 x AAA batteries as instructions.
When using the remote control, point it toward the remote con-trol 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 unin-tentional operation of
other devices that can be controlled by infra.
Power ON/OFF
Input select
MENU/OK
Next level menu
Return
Mute(Define in the menu)
Volume +
D
own
A300
Up
FN
Volume -

Display Interface and Instructions
A300
53 4 6
2
1
7 8 9 10 11 12 13 14
15
Menu button Power ON/OFF
5 6
Analog input 1 9
7Analog input 2 8
Display Remote window Knob
Input button
12 3
4
Right channel output at BTL
USB input
10 Bluetooth antenna
11 Right channel output 12
Left channel output
13 Power input 14 SW output
15

When turned on, it will display meaning A300.
When switching the input it will display
3 EQ menus
In the treble adjustment will be displayed ←→
In the Bass adjustment will be displayed ←→
3 brightness adjustment , ,
Stereo mode ,BTL mode
Full frequency mode , high pass mode
Volume display , ...
*Volume blinks when mute
Menu introduction
Line in 1 Line in 2 Bluetooth Input Computer Input
Direct Tone
SDB Bass
Super Bass Rock
Soft Clear
Operating Instructions
A300

Operating Instructions
A300
Enter the menu method
Short press the MENU button to enter different options, rotate the knob to
select, and then long-press MENU to exit;
Use the remote control to enter the menu and make a selection.
IN1 and IN2 Instructions for Use
The analog signal RCA input is selected to IN1 or 2, the A300 selects the
corresponding input to play music.
USB Instructions for Use
Use the matching USB cable to connect to the computer, select the USB
mode for A300, and select USB AUDIO as the output in the sound option
of the computer. It is recommended to set the computer volume to the
maximum.
BT Instructions for Use
Enter the selection to bt, turn on the Bluetooth of the mobile phone,
search for the name SMSL BT5.0C, click connect, the mobile phone
plays music, it is recommended to adjust the volume of the mobile
phone to the maximum.
BTL Instructions for Use
In the power-off state, please connect the speaker cable to the L channel
of IN1/2 first, select br1 when the power is turned on, then switch to IN1/2
according to the input signal, and play music.
(In bridge mode, only the L channel input signal of IN1/2)

Operating Instructions
A300
Description of BTL-R
In bridge mode, the channel of IN1/2 is connected to the signal, and the
BTL-R will output the signal of the right channel of IN1/2.
Description of SW
To output a subwoofer signal, an active subwoofer needs to be connected.
Description of High-pass mode HF1
In the stereo mode, select the high-pass mode, then the subwoofer part is
deleted from the stereo, and the SW is connected to the active subwoofer
to form a 2.1 speaker.