2 x 100W Bluetooth 5.1 + DSP Audio Amplifier Board - Compact Power

Our review of the 2 x 100W Bluetooth 5.1 + DSP Audio Amplifier Board evaluates who will get the most value from this TinySine design and why it stands out. In short, this board is for hobbyists and small-scale installers who want a compact, high-power stereo amplifier with modern wireless codecs and on-board DSP. The biggest reason to buy is the combination of a true class-D amp delivering two simultaneous 100W channels and an ADAU1701 DSP for room tuning and crossover control, all with Bluetooth 5.1 convenience.

Key Features

• Bluetooth 5.1 with aptX: Supports aptX and aptX Low Latency for higher-quality wireless audio and reduced lip-sync delay with compatible devices.
• Dual 100W outputs: Two channels each able to deliver 100W nominal power so both channels can drive speakers continuously at full rated power.
• Integrated DSP: ADAU1701 DSP allows EQ, crossover and signal processing adjustments for tuning systems to the room or speaker set.
• Wide input voltage: Works from DC12V to 30V so it can be used with common desktop or automotive power setups without special supplies.
• I2S 48kHz sampling: I2S audio interface at 48kHz provides a simple high-quality digital input path for compatible modules.
• TWS support: True wireless stereo pairing lets the module be used in multi-unit wireless setups when supported.

Who It's For

This board is aimed at DIY audio builders, makers and small installers who need a compact, high-power amplifier with flexible DSP and modern Bluetooth codecs. It is especially useful in projects where space is limited but full stereo power and tuning capability are required.

Those who should look elsewhere include users who want a finished consumer amplifier with enclosure, display and remote control, or buyers who require Bluetooth codec handling beyond aptX, SBC and AAC or advanced streaming platform integration out of the box.

Pros & Cons

Pros

• High continuous power: two channels rated at 100W each deliver robust output for bookshelf or small floorstanding speakers.
• Modern Bluetooth: Bluetooth 5.1 with aptX and aptX Low Latency provides higher fidelity and lower latency than basic SBC streams.
• Flexible DSP: ADAU1701 on board gives useful tuning and crossover options for system optimization.
• Wide supply range: DC12V-30V support makes powering the board straightforward in many setups.

Cons

• Not a finished product: it is a board-level solution requiring user-supplied enclosure, power supply and wiring.
• No detailed user interface: adjustments require familiarity with DSP tools and external controls rather than simple onboard knobs.

Specifications

Our Verdict

The TinySine 2 x 100W Bluetooth 5.1 + DSP board is a strong value for DIYers and installers who want real stereo power plus on-board DSP and modern Bluetooth codecs. It delivers capable class-D amplification and flexible tuning, but buyers should be comfortable providing a power supply, enclosure and basic DSP setup to get the best results.

Frequently Asked Questions

Can this board drive two passive speakers directly?
Yes, the board provides two channels rated at 100W each and can drive 2 to 8 passive speakers depending on wiring and impedance.

What power supply does it need?
Use a DC supply between 12V and 30V; choose a supply with sufficient current capacity for your speaker load and listening level.

How do you connect Bluetooth?
The module appears as TSA8802B during pairing and requires no PIN; it supports aptX, aptX Low Latency, SBC and AAC for connected devices.