S M S L ASO Pro Stereo Power Amplifier User Manual

S M S L ASO Pro Stereo Power Amplifier

Specifications

• Model: A5OPRO
• Website : https://smsl-audio.com/
• Version: Ver 1.0
• Power Output: 70Wx2(4Ω), 100W(8Ω)
• Frequency Response: 20Hz-20kHz
• THD: 0.013%
• SNR : -94dB (1kHz)
• Input Sensitivity: -10dB
• Dynamic Range: 102dB
• Power Consumption: 36W

Product Usage Instructions

Connections
Connect your audio source to the A5OPRO using one of the following inputs: BT, USB, HDMI(ARC), or LINE IN.

Power On/Off:
To power on the A5OPRO, press the power button. To power off, press and hold the power button until the device shuts down.

Volume Adjustment:
Use the volume control knob to adjust the volume level. The range is from -5dB to +5 dB.

Audio Playback:
Play audio files with a sampling rate of up to 24bit/192kHz for high- quality sound output.

Additional Features
The A5OPRO supports features like HDMI(ARC) for audio return channel functionality and pop protection for audio clarity.

The contents of this manual may be changed with the edition, and are subject to change without notice!

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 a salesperson 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 (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

Warranty Terms

1. The term of service Foshan Shuangmusanlin Technology Co., Ltd. promises good quality products. If the product is defective by normal use within 7 days after purchase, the customer can choose to send it back for return or repair (only the product does not affect the secondary sales can be returned ). Faulty for free within one-year warranty normal use.
2. The date of purchase is under the date on the invoice or receipt uesd by the seller, online shopping can show the screenshot of the trade.
3. The following situation can not enjoy the “Three Guarantees service”
   • a. All damages by human factors, including use it under non-normal working environments and not follow manual instructions.
   • b. User privately disassembles, modification, and maintenance.
   • c. Use non-designated or approved accessories to cause damage.
   • d. QC or warranty stickers damage on a cabinet.
   • e. Can not provide valid purchasing proof.
   • f. Not belong to SMSL product.
4. How to guarantee These terms are only suitable for China mainland, another region please refer to the policy of the local sales agents and nations.

Features

• Using 2 pieces of German Infineon new silicon carbide digital power amplifier chip, higher quality at the same time, efficiency up to 92%, further reducing energy consumption;
• High-pass, low-pass each 10 crossover points adjustable, subwoofer output volume adjusted independently, perfectly adapted to different passive main channel speakers and passive subwoofer speakers, composed of 2.1 speaker system.
• Supports Bluetooth, optical, HDMI audio, USB, line-in;
• The new Bluetooth 5.0 technology combines low power consumption and high sound quality.
• Supports HDMI (ARC) audio return function for connecting to the HDMI port of the TV to realize the output of audio to the TV.
• Electronic volume control eliminates the murmur when the potentiometer is adjusting the volume.
• Optical support up to 24bit/192kHz signal inputs,
• With sound effect adjustment, high and low sounds are individually adjustable.
• With a pop sound control circuit, no pop sound when switching on and off.
• High-power power adapter, adapted to the dynamic response of the audio.
• Extremely small size, more flexible placement.

Specification

• Inputs…………………………………………………………..BT/USB/HDMI(ARC)/OPTICAL/LINE IN

• Output power …………………………………….main channel 70W x 2 (4Ω,2ch driven)
  ………………………………………………………………….subwoofer 100W(2Ω,1ch driven)

• Frequency response …………………………………………………………………………….20Hz-20kHz

• BASS or TREBLE GAIN …………………………………………………………………………-5dB ~ +5dB

• THD+N ………………………………………………………………………………………………………..0.013%

• Channel separation ………………………………………………………………………………-94dB(1KHz)

• Input sensitivity ………………………………………………………………………………………………..-10dB

• SNR ………………………………………………………………………………………………………………….102dB

• Power consumption…………………………………………………………………………………………..36W

• Standby power………………………………………………………………………………………………..<0.5W

• Dimensions ……………………………………………………………………….134x33x103mm (WxHxD)

• Weight …………………………………………………………………………………………………………..0.30kg

Specifications are subject to change without notice.

Notes on the use of Bluetooth

• There are other WiFi 2.4G and Bluetooth devices in the use environment, which is prone to interference, which may lead to unsuccessful connection, or sound freeze, or even interruption of playback.
• Bluetooth also affects effective transmission due to too long a distance or being blocked by a block (such as a wall). It is recommended that the straight-line distance for obstacles is generally about 8-10 meters.
• For some Android mobile devices, Bluetooth may not be fully compatible, which may result in abnormal playback. Please confirm that there is no compatibility issue with the mobile phone before use.

Remote control

• Install 2 x AAA batteries as instructions.
• When using the remote control, point it toward the remote control 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 unintentional operation of other devices that can be controlled by infra.

Operating the remote control

Note: This remote controller use 2 x R03/AAA batteries.

Display Interface and Instructions

• Knob
• Display
• Bluetooth antenna
• USB Input
• HDMI Input
• Optical Input
• Line in
• Subwoofer speaker out
• Right speaker output
• Left speaker output
• Power input

Instructions for use

• Long press the knob to turn on the power, and short press to turn on the power.
• Under the power-on conditions, press the knob shortly each time to enter “Input Mode, EQ Adjustment, Bass Adjustment, Treble Adjustment, Low Pass Adjustment, High Pass Adjustment, Subwoofer Adjustment, Volume Adjustment” in turn.
• Short press the knob to enter the input source, rotate the knob to switch between “Bluetooth, USB, HDMI audio, optical fiber, line in”.

EQ adjustment：

1. Direct
2. Tabebuia
3. Bass
4. Super Bass
5. Rock
6. Soft
7. Display in bass adjustment
8. Display in treble adjustment
9. Display in low-pass adjustment
10. Display in high pass adjustment
11. Display in subwoofer adjustment,
12. Volume display

https://smsl-audio.com/

FAQ

Frequently Asked Questions

• Q: What is the maximum power output of the A5OPRO?
  • A: The A5OPRO has a power output of 70W per channel at 4Ω and 100W at 8Ω.
• Q: What is the frequency response range of the A5OPRO?
  • A: The frequency response range of the A5OPRO is from 20Hz to 20kHz.
• Q: How do I switch between different input sources on the A5OPRO?
  • A: Use the input selection button on the device to switch between BT, USB, HDMI(ARC), and LINE IN inputs.

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