TPA3116 ZK-502H HIFI Class 2.0 Stereo Bluetooth Digital Amplifier Board

Upgrade your audio setup with the TPA3116 ZK-502H 50W×2 HIFI Class 2.0 Stereo Bluetooth Digital Amplifier Board Module. Built around the powerful TPA3116 chip, this compact amplifier module delivers crisp, high-fidelity stereo sound at up to 50 watts per channel — perfect for DIY audio projects, home hi-fi systems, and custom speaker builds.

Key Features

50W × 2 Output Power — Dual-channel Class D amplifier delivers clean, powerful stereo audio for bookshelf or floor-standing speakers.
Bluetooth Connectivity — Wirelessly stream music from smartphones, tablets, or laptops with easy, reliable Bluetooth pairing.
HIFI Class 2.0 Audio — High-fidelity signal processing ensures low distortion, wide frequency response, and excellent dynamic range.
TPA3116 Chip — Industry-trusted amplifier IC known for its efficiency, thermal performance, and audio clarity.
Compact Module Design — Slim PCB board form factor integrates seamlessly into custom enclosures, DIY speaker cabinets, or audio projects.
Wide Compatibility — Supports standard audio inputs alongside Bluetooth for versatile source connectivity.
Efficient & Cool Running — Class D technology minimizes heat generation while maximizing power efficiency.

Specifications

Model: ZK-502H
Chip: TPA3116
Output Power: 50W × 2 (Stereo)
Class: Class D (2.0 Stereo)
Connectivity: Bluetooth + Auxiliary Input
Form Factor: PCB Module / Board

Who Is This For?

The ZK-502H amplifier board is ideal for audio enthusiasts, electronics hobbyists, and DIY makers who want to build or upgrade a high-quality stereo sound system. Whether you're restoring vintage speakers, building a custom hi-fi amplifier, or adding Bluetooth audio to an existing setup, this module is a versatile, cost-effective solution.

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Frequently Asked Questions

Q: What is the TPA3116 ZK-502H Bluetooth Digital Amplifier Board used for?

A: The TPA3116 ZK-502H is a Class 2.0 stereo digital amplifier module designed for DIY audio projects, home hi-fi builds, and custom speaker systems. It delivers 50W per channel of clean, high-fidelity audio and supports both Bluetooth wireless streaming and wired auxiliary input.

Q: How do I connect the ZK-502H amplifier board to my speakers?

A: The ZK-502H PCB module features standard speaker output terminals. Simply connect your passive speakers to the output terminals, provide the recommended DC power supply, and pair your device via Bluetooth or connect via the aux input to start playing audio immediately.

Q: What power supply does the TPA3116 ZK-502H amplifier require?

A: The TPA3116-based ZK-502H amplifier board is designed to operate with a DC power supply within its rated voltage range. For best performance and maximum output power, it is recommended to use a stable, adequately rated DC adapter — please refer to the module's technical datasheet for exact voltage and current requirements.

Q: Is the TPA3116 ZK-502H suitable for beginners in audio DIY?

A: Yes! The ZK-502H is a user-friendly amplifier board that is well-documented and widely used in the DIY audio community. With basic electronics knowledge and the right power supply and speakers, you can have a working hi-fi stereo system up and running in a short time.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.