S M S L A300 BTL Power Amplifier User Manual
- July 21, 2024
- S M S L
Table of Contents
S M S L A300 BTL Power Amplifier
Specifications
- Power Output: 165Wx2(4Ω) / 85Wx2(8Ω) BTL / 330Wx1(4~8Ω)
- THD: 0.008%
- Signal-to-Noise Ratio: 89dB
- Dimensions: 210.5 x 41 x 198mm (WxHxD)
- Weight: 1.3kg / 2.86lbs
Product Usage Instructions
Safety Notes:
- Install the unit in a well-ventilated, cool, dry, clean place away from direct sunlight, heat sources, vibration, dust, moisture, or cold.
- Use only the specified voltage for the unit to avoid potential dangers.
- Do not attempt to modify or fix the unit by yourself; contact customer service for any service needs.
- Disconnect the power cable from the AC wall outlet if not planning to use the unit for a long period.
Warranty Terms:
-
If the product is broken within 7 days of purchase under normal
use, it can be returned, replaced, or repaired. -
Free repairing within one year of normal use.
-
Warranty will be void if inappropriate usage causes damage.
-
Provide proof of purchase for warranty claims.
FAQ
Q: Where can I download the latest version of the manual?
A: You can download the latest version of the manual at https://smsl- audio.com/portal/product/support
Q: What should I do if the unit is damaged?
A: If the product is broken within 7 days of purchase under normal use, you can choose to send it back for return, replacement, or repair.
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.
Safety Notes
- 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.
Warranty Terms
-
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. -
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.
-
If an inappropriate usage causes the unit damaged, the warranty will be void. As below.
- 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.
-
Sending it back to our company for repairing.
-
Contact your S.M.S.L Audio reseller for a return or replacement.
Features
- 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
- 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
SMSL reserves the right to make improvements which may result in specification or feature changes without notice.
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.
Operating the remote control
Display Interface and Instructions
- Display
- Remote window
- Knob
- Input button
- Menu button
- Power ON/OFF
- Analog input 2
- Analog input 1
- Right channel output at BTL
- USB input
- Bluetooth antenna
- Right channel output
- Left channel output
- Power input
- SW output
Operating Instructions
Menu introduction
- When turned on, it will display meaning A300.
- When switching the input it will display
- 3 EQ menus
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)
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.
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