ขาย [READY STOCK] 20 w 5v 2 . 1 channel แผ่นบอร์ดโมดูลขยายเสียงสเตอริโอดิจิตอล ราคาที่ดีที่สุด

#Stereo AMP #Stereo Amplifier #Digital Amplifier Board #Stereo Amplifier Board #Bluetooth Stereo Amplifier Board Features: 1. This power amplifier board is powered by Bluetooth 5.0 5V 3A. After secondary development by peripheral hardware, the maximum power can be configured to reach 20W: Bass 10W + sub-box 10W (5W * 2). 2. Therefore, this power amplifier board has strict requirements on the power supply and the speaker, especially the woofer. 3. (Satellite) left and right channel sub-box speaker: select 4 Ω / 5W full-range speaker. (Please use 4 Ω and 3W for USB power supply) 4. Woofer: Choose 3 - 4 Ω 10W-15W Woofer. Never use 6 Ω or 8 Ω woofer. (Please select 4 Ω 5W for USB power supply) 5. Audio source: optional MP3, MP4, computer, PC, mobile phone, etc. Specification: Bluetooth: 5.0 Power supply: DC voltage 5V (4.8-5V), current should be 2.5A-3A or more Maximum power: 20W Package weight: approx. 29g Package list: 1 * Module 3 * Connection Cable