D100A Dual TPA3116 Bluetooth 5.0 Class D Stereo Amplifier 2×100W

Product Description

The D100A Dual TPA3116 Bluetooth 5.0 Class D Stereo Amplifier is a compact 2-channel HiFi power amplifier designed for passive speakers, DIY audio systems, desktop setups, and home stereo applications.

Built with two TPA3116 Class D amplifier chips, the D100A delivers powerful stereo output of up to 2×100W at 4Ω or 2×50W at 8Ω when operated at 24V. Its efficient Class D design combines strong output capability with a compact aluminum enclosure.

Enjoy wireless audio through Bluetooth 5.0 or connect a wired audio source through the stereo RCA inputs. The included external Bluetooth antenna helps provide a stable wireless connection with a transmission distance of up to approximately 10 meters under suitable conditions.

Key Features

• Dual TPA3116 amplifier chips
• 2.0-channel stereo Class D amplifier
• Bluetooth 5.0 wireless audio
• Up to 2×100W output at 4Ω
• Up to 2×50W output at 8Ω
• Power ratings measured with a 24V power supply
• Supports 4Ω and 8Ω passive speakers
• Recommended speaker power range: 0–150W
• 20Hz–20kHz frequency response
• Bluetooth transmission distance up to approximately 10 m
• Stereo RCA audio input
• Convenient front volume control
• External Bluetooth antenna
• Compact aluminum enclosure
• Reverse-polarity, short-circuit and self-recovery over-temperature protection

Specifications

Model: D100A
Amplifier Type: Class D
Output Channels: 2.0 Stereo
Amplifier Chips: 2 × TPA3116
Bluetooth Version: Bluetooth 5.0
Frequency Response: 20Hz–20kHz
Input: Bluetooth 5.0 / Stereo RCA
Output Power at 4Ω: Up to 100W × 2
Output Power at 8Ω: Up to 50W × 2
Power Rating Test Voltage: 24V
Recommended Speaker Impedance: 4Ω / 8Ω
Recommended Speaker Power: 0–150W
Power Supply: DC 12V–24V, 6–10A
Recommended Power Supply: DC 24V 6A
DC Connector: 5.5 × 2.5 mm, center positive
Bluetooth Range: Up to approx. 10 m
Dimensions: 90 × 110 × 35 mm
Weight: Approx. 300 g

Audio Input

The D100A supports two convenient audio input methods:

Bluetooth 5.0: When RCA cables are not connected, the amplifier defaults to Bluetooth mode. The Bluetooth device name is BT5.0.

RCA Input: For wired audio, connect both the left and right RCA channels. Both RCA connectors must be inserted to switch the amplifier into RCA input mode.

Speaker Compatibility

This amplifier is designed for passive constant-impedance speakers rated at 4Ω or 8Ω.

Do not use with:

• Active/powered speakers
• 70V/100V constant-voltage speakers
• Constant-voltage PA speaker systems

Protection Features

The amplifier incorporates multiple protection functions, including:

• Reverse-polarity power protection
• Short-circuit protection
• Self-recovery over-temperature protection

Important Power Supply Information

For best performance, a 24V 6A DC power supply is recommended.

Do not exceed 24V DC, as excessive input voltage may damage the amplifier.

The DC power connector is 5.5 × 2.5 mm, center positive.

Important Wiring Note

Do not connect the negative terminals of the left and right speaker outputs together. Doing so may damage the amplifier.

Package Includes

• 1 × D100A Bluetooth Class D Stereo Amplifier
• 1 × Bluetooth Antenna
• 1 × Stereo RCA Audio Cable

Power adapter is not included unless specifically selected or stated in the product option.

Ideal For

• Home stereo systems
• Passive bookshelf speakers
• DIY audio projects
• Desktop audio systems
• Workshop audio systems
• Bluetooth speaker projects
• Compact HiFi setups