2×100W Class D Stereo Amplifier Module with Bluetooth 5.0 – Serious Power in a Compact Design
Looking for powerful, crystal-clear sound without the bulk of a traditional rack system? This versatile amplifier module lets you stream wirelessly, connect via cable, or play directly from a USB drive. Measuring just 58×53×18mm and weighing only 70g, it is the perfect component for any custom audio project.
Note: Power supply and passive speakers are not included. The module requires a DC power source between 5V and 26V (minimum 3A) and is compatible with 4–8 Ohm, 30–300W passive speakers.
Why choose this amplifier module? (Key Benefits):
- True 2×100W RMS Power — Experience genuine 100W per channel output, delivering distortion-free audio even at high volumes.
- Stable Bluetooth 5.0 — Enjoy a reliable wireless connection with a range of up to 15 metres and minimal latency.
- Complete App Control — Use the free Sinilink app (Android & iOS) to adjust volume, switch sources, and tweak the equaliser from the comfort of your seat.
- 360° Rotary Encoder — A single, intuitive control: rotate for volume, short press to switch sources, and long press for mute.
- Triple Input Versatility — Play audio via Bluetooth, 3.5mm AUX, or FAT32 USB flash drives (up to 32GB) without needing an external player.
- Triple Protection System — Built-in self-recovering protection against polarity reversal, short circuits, and overheating ensures long-term reliability.
- Universal DC 5–26V Power — Easily powered by LiPo batteries, 12V car systems, ATX power supplies, or standard mains adapters.
Performance and Technical Details
The Class D amplification design ensures high energy efficiency, converting more power into sound rather than heat compared to traditional AB amplifiers. The pre-installed aluminium heatsink and thermal silicone paste ensure the module remains cool and stable, even during extended listening sessions at maximum power.
The Bluetooth 5.0 chipset provides a stable connection up to 15 metres in open spaces. The USB flash drive input supports direct playback of MP3 and WAV files, removing the need for a phone or laptop. Additionally, the 3.5mm jack output allows you to route the signal to headphones or a secondary amplifier.
| Parameter | Specification |
|---|---|
| Channels | Stereo 2.0 (Left + Right) |
| Output Power | 2 × 100W RMS |
| Amplifier Class | Class D |
| Supply Voltage | DC 5–26V, min 3A |
| Bluetooth Version | 5.0 |
| Bluetooth Range | Up to 15m (unobstructed) |
| Audio Inputs | Bluetooth, 3.5mm AUX, USB Flash (FAT32, max 32GB) |
| Audio Outputs | Passive speaker terminals + 3.5mm jack |
| Compatible Speaker Impedance | 4–8 Ohms, 30–300W |
| Volume Control | 360° rotary encoder with push function |
| Mobile App | Sinilink (Android & iOS) |
| Cooling System | Aluminium heatsink with thermal paste |
| Integrated Protections | Polarity reversal, short circuit, thermal (self-recovering) |
| USB Audio Formats | MP3, WAV |
| Dimensions (with heatsink) | 58 × 53 × 18 mm |
| Weight | 70 g |
Setup and Usage Instructions
- Power Supply: Connect a 5V–26V DC source (min 3A) to the power terminals, ensuring correct polarity.
- Speaker Connection: Wire your 4–8 Ohm passive speakers to the left and right output terminals.
- Source Selection: Short press the rotary encoder to cycle between Bluetooth, AUX, and USB modes.
- Bluetooth Pairing: The module enters pairing mode automatically upon startup. Select it from your device’s Bluetooth menu.
- Sinilink App: Download the Sinilink app from the Google Play Store or App Store to manage volume, EQ settings, and source selection.
- Volume Control: Rotate the encoder for volume; short press to switch inputs, long press to toggle mute.
- USB Playback: Insert a FAT32-formatted USB stick (max 32GB) to begin automatic playback of supported audio files.
Package Contents
- 1× 2×100W Class D Bluetooth 5.0 Hi-Fi Stereo Amplifier Module
- 1× Aluminium heatsink with pre-applied thermal paste
- 1× 360° Rotary encoder
Frequently Asked Questions
What power supply do I need for the full 2×100W output?
For maximum power, use a 24–26V DC power supply with at least 10A. While performance will scale down when using 12V (e.g., in a car), the module remains stable and provides excellent sound quality.
Is it compatible with my 4 Ohm speakers?
Yes, it supports impedances from 4 to 8 Ohms and power ratings between 30W and 300W. Ensure your speakers are rated to handle the power output of your chosen voltage.
Can I connect this directly to a 12V car battery?
Yes, it is fully compatible with 12V automotive systems. While the output power will be lower than the maximum 2×100W, it is more than sufficient for most car audio installations.
What USB formats are supported and what is the maximum capacity?
The module supports MP3 and WAV files on FAT32-formatted USB drives up to 32GB. Please ensure your drive is formatted correctly before use.
Does it come with a case?
No, this is a bare-board module, making it ideal for custom DIY enclosures. Its compact 58×53×18mm footprint allows for easy integration into any existing audio system or custom build.
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