A4 – All-in-One In-Wall Stereo Amplifier with Touch Screen Control

The A4 is a compact in-wall amplifier with integrated Bluetooth, FM radio, USB/SD music player, and four-channel stereo output. Designed for home and commercial audio zones, it delivers 4 x 25W power and supports up to 8 speakers. With a 3.5” capacitive touch screen and remote control, the A4 is your complete solution for small room sound systems.

• Wireless Audio: Built-in Bluetooth allows streaming from smartphones, tablets, or computers with modifiable pairing name and password.
• Touch Screen Display: 3.5” capacitive touch panel for simple navigation, music selection, and volume control.
• Multi-Source Audio: Supports USB, TF card (up to 32GB), FM radio (87–108MHz), and rear panel audio input/output.
• Scheduling & Clock: Built-in timer function for scheduled playback and 12/24-hour time display.
• Audio Output: 4 x 25W stereo output for 4–8Ω speakers; recommended setup includes 4 ceiling speakers for best performance.
• Versatile Application: Ideal for use in homes, apartments, offices, villas, hotels, shops, and restaurants.

Technical Specifications:

• Output Power: 4 x 25W (Max)
• Screen: 3.5” Capacitive Touch Display
• Audio Inputs: Bluetooth, USB, TF Card, Rear Wired Input
• Audio Outputs: Rear Wired Output
• Frequency Response: 20Hz–20kHz
• Input Impedance: 10kΩ | Output Impedance: 4–8Ω
• Bluetooth Range: ≤ 10m | Power Supply: AC 100–240V
• Dimensions: 86 x 86 x 48 mm | Weight: 0.45 kg

Package Includes: Amplifier, Wall Bracket, Back Box, Remote Control, Mounting Screws, USB Connector