
SMSL A1 Pro Class D 2.0 Integrated Amplifier
Key Features
- Working method: Class D
- Output power: 160W × 2 @ 4 Ohms
- Total Harmonic Distortion: 0.003%
- Dynamic Range :> 109dB
- Frequency response: 20Hz-20KHz
- Input: RCA / XLR (Mono)
Cash / Online Payment · EMI Available
Specification
Amplifier
Amplifier Class
Class D
Power Chip/IC
GaN FET
Output Impedance
4-8 Ohms
Input Voltage
230V AC
Colour
Black
Description
SMSL A1 Pro Class D 2.0 Integrated Amplifier Price in Bangladesh
SMSL SMSL A1 Pro Class D 2.0 Integrated Amplifier is a premium high-performance amplifier designed for audiophiles who demand exceptional sound quality, modern amplifier technology, and powerful performance in a compact form factor. At Audio Phonic, we provide original SMSL amplifiers in Bangladesh for music enthusiasts, home audio users, and professional listeners who want a refined and immersive listening experience.
The SMSL A1 Pro uses Infineon’s latest GaN FET amplifier technology with an ultra-high switching frequency of up to 1MHz. This advanced design helps deliver cleaner, more detailed, and highly accurate sound reproduction across the entire frequency range.
With powerful 160W × 2 output, premium audio-grade components, XLR mono support, and ultra-low distortion performance, the SMSL A1 Pro is an ideal solution for modern HiFi audio systems and demanding speaker setups.
Advanced GaN FET Amplifier Technology
One of the biggest highlights of the SMSL A1 Pro is the use of Infineon’s latest GaN FET technology.
GaN, or Gallium Nitride, is an advanced semiconductor technology that offers significant advantages over traditional amplifier designs. The amplifier operates with an extremely high switching frequency of up to 1MHz, resulting in cleaner signal processing and improved audio detail.
Benefits of GaN FET Technology
More Delicate Full-Band Sound
The advanced switching design allows the amplifier to reproduce music with greater precision and smoother tonal balance.
Higher Efficiency
GaN technology improves energy efficiency while reducing heat generation.
Faster Signal Response
The amplifier reacts more quickly to audio signals, improving dynamics and transient response.
Improved Sound Transparency
Listeners can enjoy better instrument separation and clearer vocals.
This modern amplifier architecture helps the SMSL A1 Pro achieve audiophile-grade sound performance in a compact Class D amplifier design.
Exceptional Audio Quality with Ultra-Low Distortion
The SMSL A1 Pro is engineered to deliver highly accurate audio reproduction with minimal distortion.
THD+N Performance
The amplifier features an extremely low THD+N rating of only 0.003%, ensuring cleaner and more natural sound quality.
Low distortion is essential for preserving audio detail and maintaining accurate sound reproduction across different listening volumes.
High Signal-to-Noise Ratio
With a signal-to-noise ratio of 109dB, the A1 Pro offers excellent audio clarity with reduced background noise and interference.
This results in a quieter audio background, allowing users to hear more subtle details in music recordings.
Advanced TI PGA2311 Volume Control Chip
The SMSL A1 Pro uses Texas Instruments’ premium PGA2311 volume control chip.
This advanced electronic volume control system provides:
More Precise Volume Adjustment
Users can adjust the volume smoothly with higher control accuracy.
Better Channel Balance
The amplifier maintains excellent left and right channel consistency at all volume levels.
Ultra-Low Distortion
The PGA2311 chip minimizes signal degradation during volume adjustment.
Improved Listening Experience
The advanced volume architecture helps deliver a more refined and natural sound signature.
This premium-grade component is widely respected in the audiophile community for its outstanding audio performance.
Stereo Pure Amplifier Pass-Through Mode
The SMSL A1 Pro supports stereo pure amplifier pass-through mode, allowing integration with devices like the SMSL D1 Pro DAC and preamplifier.
This setup creates a more direct signal path, reducing unnecessary processing and preserving audio purity.
Benefits of Pure Amplifier Mode
Cleaner Audio Signal
The direct signal path minimizes interference and coloration.
Better Transparency
Music sounds more open and natural.
Improved HiFi Performance
Perfect for audiophiles building advanced high-resolution audio systems.
This feature makes the A1 Pro highly flexible for premium audio setups.
XLR Mono Mode for High-Power Speaker Systems
The SMSL A1 Pro includes XLR input mono mode support for users who require even greater power output.
In mono mode, two A1 Pro units can be combined to form a stereo system with significantly increased power capability.
Advantages of XLR Mono Mode
Increased Power Output
Using two amplifiers together increases overall power performance dramatically.
Easy Speaker Driving Capability
Perfect for large and demanding high-power speakers.
Balanced Audio Connection
XLR connections help reduce noise and improve signal quality.
Professional Audio Flexibility
Suitable for advanced HiFi systems and professional audio applications.
This feature gives users upgrade flexibility for future high-end audio systems.
Premium Audio-Grade Components
SMSL designed the A1 Pro using a large number of high-quality audio-grade components.
These components help improve:
Sound Accuracy
More detailed and realistic audio reproduction.
Dynamic Range
Improved musical energy and expression.
Long-Term Reliability
Stable operation and extended product lifespan.
Listening Comfort
Cleaner and smoother sound during long listening sessions.
The careful component selection contributes significantly to the amplifier’s overall premium sound character.
High-Quality Gold-Plated Input and Output Sockets
The SMSL A1 Pro uses premium gold-plated connectors for both input and output terminals.
Improved Signal Transmission
Gold-plated sockets reduce signal loss and improve conductivity.
Better Durability
Gold plating resists corrosion over time.
Stable Audio Performance
Reliable connections ensure consistent sound quality.
This attention to detail reflects SMSL’s commitment to premium HiFi engineering.
Built-In High-Power Audio Grade Power Supply
The amplifier includes a specially designed high-quality switching power supply optimized for audio applications.
Stable Power Delivery
Ensures consistent performance even during demanding playback.
Better Dynamic Response
Supports stronger bass and improved transient performance.
Energy Efficient Operation
Provides high output performance with lower power consumption.
The dedicated audio-grade power supply helps maximize the amplifier’s sonic performance.
Complete Protection Circuit Design
The SMSL A1 Pro includes advanced protection systems for safe and reliable operation.
Overheating Protection
Prevents damage caused by excessive temperature.
Overcurrent Protection
Protects the amplifier from electrical overload.
Stable System Operation
Improves overall reliability during long listening sessions.
These protection systems help extend product lifespan and ensure dependable daily use.
Powerful 160W × 2 Output Performance
The SMSL A1 Pro delivers up to 160W × 2 output power, making it capable of driving a wide range of speakers effectively.
Suitable for Bookshelf Speakers
Provides excellent control and clarity for compact speaker systems.
Great for Floor-Standing Speakers
Enough power to handle larger home audio speakers confidently.
Ideal for HiFi Audio Systems
Excellent performance for serious music listening setups.
The strong output capability makes the amplifier highly versatile for different listening environments.
Compact Yet Premium Design
Despite its powerful performance, the SMSL A1 Pro maintains a compact and elegant form factor.
Dimensions
210 × 47 × 201 mm
Weight
1.56 KG
The compact size allows easy placement on audio desks, shelves, and entertainment systems without occupying excessive space.
Modern CNC Aluminum Alloy Construction
The amplifier features a premium CNC-machined aluminum alloy chassis with anodized finishing.
Elegant Appearance
The modern minimalist design complements professional and home audio environments.
Strong Build Quality
The aluminum body improves durability and heat dissipation.
Premium User Experience
The refined finish and precise machining enhance the overall product feel.
SMSL’s excellent craftsmanship makes the A1 Pro visually impressive as well as technically advanced.
Connectivity Options
The SMSL A1 Pro includes multiple input options for flexible system integration.
RCA Input
Ideal for DACs, CD players, streamers, and traditional analog audio devices.
XLR Mono Input
Supports balanced mono configuration for high-power applications.
These connectivity options allow the amplifier to work seamlessly with a variety of audio equipment.
Technical Specifications of SMSL A1 Pro
Inputs
RCA / XLR (Mono)
THD+N
0.003%
Signal-to-Noise Ratio
109dB
Channel Separation
75dB
Output Power
160W × 2
Input Sensitivity
680mV
Input Impedance
22k Ohms
Dimensions
210 × 47 × 201 mm
Weight
1.56 KG
These specifications demonstrate the amplifier’s excellent balance of power, precision, and efficiency.
Why Buy SMSL A1 Pro from Audio Phonic
Audio Phonic is a trusted source for premium audio equipment in Bangladesh. We offer authentic SMSL amplifiers with competitive pricing and professional customer support.
When purchasing from Audio Phonic, customers receive:
Genuine SMSL Products
Guaranteed original amplifier with official quality.
Competitive Price in Bangladesh
Affordable pricing for premium HiFi equipment.
Reliable Customer Support
Professional assistance for setup and product information.
Trusted Audio Shopping Experience
Audio Phonic is dedicated to providing high-quality audio solutions for music lovers across Bangladesh.
Who Should Buy the SMSL A1 Pro Amplifier
The SMSL A1 Pro is ideal for:
Audiophiles
Excellent sound detail and musical accuracy.
HiFi Enthusiasts
Perfect for advanced home audio systems.
High-Power Speaker Users
Drives demanding speakers with confidence.
Desktop Audio Users
Compact size with premium performance.
Professional Audio Users
Flexible XLR mono configuration for advanced setups.
FAQs About SMSL A1 Pro Class D 2.0 Integrated Amplifier
What is the output power of the SMSL A1 Pro?
The SMSL A1 Pro delivers up to 160W × 2 output power.
What amplifier technology is used in the SMSL A1 Pro?
It uses Infineon’s latest GaN FET Class D amplifier technology.
Does the SMSL A1 Pro support XLR input?
Yes, it supports XLR mono input mode.
Can two SMSL A1 Pro units be combined?
Yes, two units can form a high-power stereo system in mono configuration.
What is the THD+N rating of the SMSL A1 Pro?
The amplifier features ultra-low distortion with a THD+N rating of 0.003%.
What volume control chip is used in the A1 Pro?
The amplifier uses the premium TI PGA2311 volume control chip.
Is the SMSL A1 Pro suitable for large speakers?
Yes, the amplifier can easily drive large and demanding speakers.
Does the SMSL A1 Pro include protection circuits?
Yes, it includes overheating and overcurrent protection systems.
What inputs are available on the SMSL A1 Pro?
The amplifier supports RCA and XLR mono inputs.
Where can I buy the SMSL A1 Pro in Bangladesh?
You can purchase the original SMSL A1 Pro Class D 2.0 Integrated Amplifier from Audio Phonic in Bangladesh.



















