the XH-A158 Ultra Clear Bluetooth 5.0 Amplifier Board is a premium, pocket-sized audio solution designed for high-fidelity wireless sound. At Electrapac, we recommend this board for hobbyists who want "ultra-clear" audio performance without the background noise often found in cheaper Bluetooth modules.

Product Overview

The XH-A158 is a dual-channel (stereo) digital amplifier that utilizes the latest Bluetooth 5.0 technology. It is specifically engineered to provide a 5W + 5W output with an emphasis on signal purity. Its compact, "button-style" layout makes it one of the easiest boards to integrate into small DIY projects, handheld speakers, or wearable audio gear.

Key Features for Electrapac Customers

• Ultra-Clear Audio Chip: Designed with an optimized circuit layout that significantly reduces electromagnetic interference (EMI), resulting in a "silent" noise floor when no music is playing.

• Bluetooth 5.0 Stability: Offers double the data transfer speed and four times the range of Bluetooth 4.2. This ensures your music stays connected even if you walk across the room with your phone.

• Dual Power Input Options: Can be powered via the standard 5V solder pads or by connecting a 3.7V - 5V battery source, making it highly versatile for both stationary and portable builds.

• Plug-and-Play Speaker Terminals: Features easy-to-use JST-style connectors or solder pads for the Left and Right channels, allowing for a quick setup.

• Energy Efficient: As a Class D digital amplifier, it runs incredibly cool and maximizes battery life, making it perfect for long-lasting portable speakers.

Wiring & Setup Guide

For the best audio experience from www.electrapac.com, follow these integration steps:

1. Speaker Connection: Connect two 4-ohm 5W speakers to the L and R output terminals.

2. Powering the Board: Connect a stable 5V DC power source. For portable use, a single 3.7V Lithium-ion battery works perfectly, as the board is designed to operate within the 3.7V–5V range.

3. Antenna Placement: Ensure the onboard PCB antenna is not blocked by metal plates or thick wiring to maintain the best Bluetooth range.

4. Pairing: Turn on your device, search for "Bluetooth" or "XH-A158", and pair. No password is required for most modern smartphones.

Ideal Applications

• Custom Desktop Speakers: Perfect for building small, high-quality speakers for your laptop or workspace.

• Portable Bluetooth Boomboxes: Lightweight enough for 3D-printed portable sound systems.

• Helmet/Wearable Audio: Its small size allows it to be tucked into helmets or jackets for personal audio projects.

• Smart Home Notifications: Connect it to an ESP32 or Raspberry Pi to act as a wireless announcement speaker.

Why Shop at Electrapac?

We curate the XH-A158 specifically for its "Ultra Clear" designation, ensuring our customers get the highest signal-to-noise ratio in this power class. Visit www.electrapac.com to find this module, 5W full-range speakers, and high-quality 18650 batteries.