1pc DC1224V Universal BT Digital Amplifier Board TPA3110D2 Audio Amplifier Dual Channel 30W+30W XHA238 (Upgraded Version) Key benefits Easy way to add reliable Bluetooth audio and powerful amplification to DIY projects, vehicles, or small stereo systems. Wide input voltage range (DC 12–24V) supports common power sources including car batteries, 12 V adapters, and many small power supplies. Delivers two channels of clean, efficient amplification (30W + 30W) for compact speakers without bulky heat sinks. Upgraded XHA238 design with the proven TPA3110D2 digital amplifier chip for better efficiency and stable performance. What this board does and why you need it Provides wireless Bluetooth input and onboard digital amplification so you can drive a pair of passive speakers without a separate amp. Solves the need for compact, efficient power amplification when building or upgrading Bluetooth speakers, desktop audio, or vehicle audio systems. The universal design makes it suitable for hobbyists, installers, and anyone who needs a simple, powerful amplifier module. Main features and specifications Model: XHA238 (Upgraded Version) Amplifier IC: TPA3110D2 digital ClassD amplifier Power supply: DC 12–24V Output power: Dual channel 30W + 30W (per channel rating as specified) Connectivity: Bluetooth (wireless audio input) Form factor: PCB amplifier board designed for integration into custom enclosures and projects Included: 1pc amplifier board (as listed) Compatibility and installation notes Compatible with standard passive loudspeakers; choose speaker impedance and power handling that match the board's output rating. Requires an external DC power source in the 12–24V range and proper speaker wiring. Ensure correct polarity when connecting power and speakers. Designed for system integrators and DIY builders; mounting and enclosure design should account for ventilation and secure connections. Performance and reliability Uses the TPA3110D2 digital amplifier chip for efficiency and reduced heat compared with traditional analog amps. Upgraded XHA238 version focuses on stable Bluetooth connectivity and dependable stereo amplification for everyday use. Typical use cases DIY Bluetooth speaker projects: Add wireless audio and a efficiency amplifier to custom enclosures for home or portable speakers. Vehicle or boat audio upgrades: Use the 12Vcompatible board to add a compact stereo amplifier to cars, trucks, or marine systems that accept a 12–24V supply. Desktop or multimedia systems: Integrate into compact desktop speaker setups or media centers to power passive speakers from Bluetooth sources. What to prepare before installation A DC 12–24V power supply with sufficient current capacity for expected output levels. Two passive speakers rated to handle the amplifier output. Basic wiring tools and secure connections for speaker output and power input. A suitable enclosure or mounting area that allows airflow around the board. This XHA238 upgraded TPA3110D2 amplifier board offers a straightforward, efficient way to add Bluetooth audio and 30Wperchannel amplification to a wide range of projects and installations.