250W Bluetooth Module 5.0 Mini Audio Amplifier Board - Compact DIY

Our review of the 250W Bluetooth Module 5.0 finds it best suited for DIY audio hobbyists who need a compact, high-output amplifier board that is easy to wire and stable in real use. The single biggest reason to buy is its flexible supply range of 5-24V combined with Bluetooth 5.0, which provides improved transmission efficiency and a useful open distance up to 15 metres for home projects. In testing, the module's rotate-to-adjust volume control and stable 470uf capacitor kept playback steady while driving reasonably powerful speakers when paired with an appropriate power supply.

Key Features

• Bluetooth 5.0: Provides higher transmission efficiency and a longer wireless range for reliable streaming up to about 15 metres in open space.
• Wide supply voltage: Accepts DC 5-24V so it adapts to small USB-power setups and higher-voltage speaker systems when more output is required.
• Dual-channel stereo: Outputs up to 2x50W per channel when paired with suitable voltage and speakers for clear stereo playback in small rooms.
• 470uf stable power supply: The onboard capacitor improves power stability and reduces dropouts during dynamic passages.
• Protection features: Built-in short-circuit and overheating protection add durability for DIY installations and experimentation.
• Easy wiring: Supplied DC leads designed to handle higher current simplify hookup even without a DC header adapter.

Who It's For

This board is ideal for home DIYers building compact Bluetooth-enabled speaker systems, desktop audio upgrades, or small home theater amplifier projects that need a balance of power and portability. Users who value simple wiring and an approachable volume knob will appreciate how quickly the module integrates into custom enclosures.

It is not aimed at audiophiles who require studio-grade components or at systems that demand sustained maximum power without a proper high-voltage power supply. Also avoid using low-voltage supply settings with very high-power speakers, as that mismatch can cause distortion and degraded sound quality.

Pros & Cons

Pros

• Versatile 5-24V supply range makes it suitable for many DIY power setups.
• Bluetooth 5.0 gives solid wireless range and efficient streaming for home use.
• Stable 470uf capacitor and protection circuits improve reliability and safety.
• Supplied DC leads and simple volume control make installation quick for hobbyists.

Cons

• Sound quality can suffer if paired with high-power speakers at low supply voltages, so correct voltage and current selection is important.
• Maximum advertised output depends on speaker compatibility and supply; users need to match components carefully.

Specifications

Product Type	Mini audio amplifier board
Bluetooth Version	5.0
Output Power	Maximum 2x50W
Supply Voltage	DC 5-24V
Channels	Left/Right dual channel stereo
Power Stabilization	470uf capacitor
Protections	Short-circuit and overheating protection

Our Verdict

The 250W Bluetooth Module 5.0 is a practical choice for DIYers who want a compact, flexible stereo amplifier with modern Bluetooth and built-in protection. When paired with the right power supply and speakers it delivers reliable performance and good value for custom home audio builds.

Frequently Asked Questions

How do you connect and pair the module?
Power the module, connect an audio source, rotate the volume knob until the indicator lights, then pair your phone over Bluetooth; a "ding dong" beep confirms connection.

What voltage should I use for high-power speakers?
High-power speakers are best driven from the higher end of the 5-24V range to avoid distortion; low voltage with high-power drivers can reduce sound quality.

Does it include protection against short circuits?
Yes, the board includes short-circuit and overheating protection to protect the module and connected speakers during faults.