100W Bluetooth HiFi Amplifier Audio Board Power Amplifier - Flexible

Our review of the 100W Bluetooth HiFi Amplifier Audio Board finds it best suited for hobbyists and small-system owners who want a compact, flexible amplifier with multiple input options. The bottom line: this board delivers clear, adjustable sound and convenient media playback from TF cards and U disks while supporting Bluetooth and FM, making it a practical choice for DIY speaker projects, small rooms, or karaoke setups where dual microphone inputs and reverb are useful.

Key Features

• Versatile media playback: Supports MP3 playback from TF cards and U disks and plays both MP3 and WAV files so you can use portable storage without extra devices.
• Customizable sound: Independent treble, bass, and master volume controls let listeners tailor the tonal balance to room acoustics and personal preference.
• Flexible connectivity: AUX input supports PCs, phones, and CD players for wired sources in addition to Bluetooth streaming and built-in FM radio.
• Professional microphone setup: Dual microphone inputs with adjustable reverb make this board suitable for karaoke, presentations, and voice-forward use cases.
• Broad speaker and power compatibility: Works with 4-8 ohm speakers, rated up to 200W, and accepts AC 110V/220V or DC 12V/24V supplies for varied installations.

Who It's For

This amplifier board is ideal for DIY audio builders, small-venue users, and homeowners who need a compact HiFi amp that accepts many sources and microphones. Its adjustable treble and bass controls plus reverb for mics mean it works well for karaoke, small public-address situations, and custom speaker cabinets.

It is less suited for large venues or audiophiles seeking high-end reference amplification; while capable, it is a practical, all-in-one board rather than a dedicated studio amp and lacks features like balanced inputs and extensive signal processing.

Pros & Cons

Pros

• Multiple playback options including TF card and U disk give standalone music playback without a separate player.
• Independent treble, bass, and master controls make quick tone shaping easy.
• Dual microphone inputs with reverb add functionality for karaoke and voice use.
• Wide power compatibility (AC 110V/220V and DC 12V/24V) and support for 4-8 ohm speakers simplify installation.

Cons

• Not aimed at high-end audiophiles; the board is a practical solution rather than a boutique hi-fi component.
• Detailed specs such as signal-to-noise ratio and THD are not provided in the product copy.

Specifications

Output power	100W
Speaker impedance	4-8 ohm
Supported formats	MP3, WAV
Media inputs	TF card, U disk
Connectivity	Bluetooth, FM radio, AUX
Microphone	Dual inputs with reverb
Power options	AC 110V/220V and DC 12V/24V

Our Verdict

The 100W Bluetooth HiFi Amplifier Audio Board is a solid value for DIYers and small-system owners who want flexible source options, mic inputs with reverb, and straightforward tone controls. It is not a high-end reference amp, but for the price and feature set it provides practical, versatile performance for home audio, karaoke, and compact installations.

Frequently Asked Questions

Can it play music from a USB flash drive?
Yes, the board supports U disk playback for MP3 and WAV files so you can play music directly from a USB flash drive.

What speakers and power supplies are compatible?
It supports 4-8 ohm speakers and can be powered by AC 110V/220V or DC 12V/24V, offering flexible installation options.

Does it have microphone effects?
Yes, there are dual microphone inputs with adjustable reverb for karaoke or vocal use.