Fosi Audio BT20A Pro Class D 2.0 Bluetooth Integrated Amplifier

Fosi Audio BT20A Pro Class D 2.0 Bluetooth Integrated Amplifier

The Fosi Audio BT20A Pro Class D 2.0 Bluetooth Integrated Amplifier is a compact yet high-performance stereo amplifier designed for users who want powerful Hi-Fi sound, modern wireless connectivity, and simple plug-and-play operation. Built around the advanced Texas Instruments TPA3255 amplifier chip, this unit delivers exceptional audio clarity, low distortion, and strong output power suitable for home audio systems, desktop setups, and bookshelf speakers.

With Bluetooth 5.0 support, RCA input, and professional-grade audio performance, the BT20A Pro is a perfect combination of convenience and audiophile-level sound quality.

Advanced TPA3255 Amplifier Technology

At the core of the Fosi Audio BT20A Pro is the highly efficient TPA3255 Class D amplifier chip, known for delivering high power output with extremely low distortion.

Key Technology Features

• PurePath Ultra-HD architecture

• High-efficiency Class D operation

• Advanced feedback correction system

• Low distortion audio processing

• High-speed switching design

Audio Benefits

• Clean and accurate sound reproduction

• Powerful and dynamic output

• Reduced audio noise and distortion

• Stable performance at high volume levels

• High-resolution sound clarity

This ensures professional-level Hi-Fi performance in a compact amplifier.

Powerful 300W × 2 Output Performance

The BT20A Pro delivers strong and stable output power capable of driving a wide range of passive speakers.

Output Specifications

• 300W × 2 at 4Ω

• Compatible impedance: 2–8Ω

Benefits

• Powerful stereo sound output

• Deep bass response

• Suitable for large bookshelf speakers

• Stable high-volume performance

• Clear audio across all frequencies

This makes it ideal for home audio and entertainment systems.

Bluetooth 5.0 Wireless Connectivity

The amplifier features Bluetooth wireless connectivity with extended range and stable performance.

Bluetooth Features

• Wireless range up to 50 feet

• Stable connection with low latency

• Fast device pairing

Benefits

• Wireless music streaming from smartphones

• Reduced cable clutter

• Convenient playback control

• Compatible with modern devices

This enhances flexibility in everyday use.

Dual Input System for Maximum Compatibility

The BT20A Pro supports both wired and wireless input options.

Input Options

• Bluetooth wireless input

• RCA analog input

Benefits

• Flexible connection options

• Easy switching between devices

• Supports TV, PC, CD players, and mobile devices

• Simple plug-and-play setup

This ensures compatibility with almost any audio source.

High-Fidelity Sound Performance

The amplifier is designed to deliver clean, detailed, and accurate sound reproduction.

Audio Specifications

• THD: ≤0.005%

• SNR: ≥108dB

• Frequency Response: 20Hz – 20kHz (±1.2dB)

Benefits

• Crystal-clear audio output

• Minimal distortion at all volume levels

• Balanced frequency response

• Professional Hi-Fi sound quality

This ensures an immersive listening experience.

Bass and Treble Control System

The BT20A Pro includes tone control features for personalized audio tuning.

Control Features

• Bass adjustment knob

• Treble adjustment knob

• Midpoint positioning for neutral sound

Benefits

• Personalized sound experience

• Balanced audio tuning

• Enhanced music enjoyment

• Easy sound customization

This allows users to adjust sound according to preference.

Clean Signal Output with Pre-Out Support

The amplifier includes a pre-out interface for extended system configuration.

Output Options

• Left and Right speaker output (banana jack)

• Pre-out connection support

Benefits

• Easy integration with subwoofers or external amps

• Flexible system expansion

• High-quality signal transfer

• Stable audio output

This makes it suitable for advanced audio setups.

Wide Speaker Compatibility

The BT20A Pro supports a wide range of speaker impedance levels.

Compatibility Range

• 2Ω to 8Ω speakers

Benefits

• Works with most passive speakers

• Suitable for bookshelf and floor-standing speakers

• Flexible system matching

• Stable performance across loads

This ensures universal usability.

Compact and Durable Design

The amplifier features a compact yet solid build quality suitable for desktop and home setups.

Physical Specifications

• Size: 278mm × 222mm × 182mm

• Gross Weight: 1KG

Design Benefits

• Space-saving design

• Easy installation anywhere

• Lightweight portability

• Durable construction

This makes it convenient for everyday use.

Efficient Cooling and Stable Performance

The BT20A Pro is designed for long-term operation with stable thermal performance.

Cooling Features

• Class D high efficiency design

• Low heat generation

• Stable internal temperature

Benefits

• Reliable long-term usage

• Reduced overheating risk

• Energy-efficient operation

• Consistent sound performance

This ensures durability and stability.

Ideal Applications of Fosi Audio BT20A Pro

The amplifier is suitable for multiple audio environments and use cases.

Home Audio Systems

Perfect for daily music listening.

Desktop Hi-Fi Setup

Ideal for PC and workstation audio.

TV Sound Upgrade

Improves television audio quality significantly.

Bookshelf Speaker Systems

Drives passive speakers efficiently.

Why Choose Fosi Audio BT20A Pro

The BT20A Pro stands out due to its combination of power, clarity, and wireless convenience.

Key Features Summary

• TPA3255 high-performance amplifier chip

• 300W × 2 powerful output

• Bluetooth 5.0 wireless connectivity

• RCA analog input support

• Low distortion Hi-Fi sound

• Bass and treble control system

• Wide speaker compatibility (2–8Ω)

• Pre-out output support

• Compact and durable design

• Energy-efficient Class D operation

This makes it a complete modern stereo amplifier solution.

Audio Phonic Quality Assurance

Audio Phonic ensures all audio products meet high standards of performance, reliability, and sound quality. The Fosi Audio BT20A Pro reflects this commitment by delivering powerful Hi-Fi sound in a compact and user-friendly design.

Technical Specifications of Fosi Audio BT20A Pro

General Information

• Brand: Fosi Audio (Audio Phonic distribution context)

• Product Name: Fosi Audio BT20A Pro Class D 2.0 Bluetooth Integrated Amplifier

• Category: Integrated Stereo Amplifier

• Channel: 2.0 Stereo System

Power Output

• 300W × 2 at 4Ω

• Impedance Range: 2–8Ω

Audio Performance

• THD: ≤0.005%

• SNR: ≥108dB

• Frequency Response: 20Hz – 20kHz (±1.2dB)

Connectivity

• Bluetooth 5.0 (50ft range)

• RCA input

• Pre-out output

• Banana jack speaker terminals

Physical Specifications

• Size: 278mm × 222mm × 182mm

• Weight: 1KG

Power Supply

• DC 32V / 5A

Frequently Asked Questions (FAQs)

What is Fosi Audio BT20A Pro used for?

It is used for powering passive speakers in home audio, desktop setups, and entertainment systems.

Does it support Bluetooth?

Yes, it supports Bluetooth 5.0 with up to 50 feet range.

How powerful is the BT20A Pro?

It delivers 300W × 2 output power at 4Ω.

Can it connect to TV or PC?

Yes, it supports RCA input for TVs, PCs, and other audio devices.

Does it support subwoofer connection?

Yes, it supports pre-out for system expansion.

What is the sound quality like?

It provides low distortion Hi-Fi sound with high clarity and balance.

Is it suitable for large speakers?

Yes, it can drive bookshelf and medium-sized passive speakers easily.

Does it include tone control?

Yes, it has bass and treble adjustment with midpoint positioning