วิธีต่อแอมป์จิ๋วZK-HT21 3G แนวทางทำลำโพงบลูทูธพร้อมวงจร

#MiniAmp #MiniAmpReview #HT21 #Wuzhi #DIYBluetoothSpeaker Review of the 540W 2.1CH Wuzhi Audio ZK-HT21 3G Mini Amp with TWS Support Location of the Authentic ZK-HT21 3G Board https://s.lazada.co.th/s.mI1IG?cc Location of the Authentic ZK-HT21 3G Board on Shopee https://shope.ee/4prwA8zT51 Location of the PLATINUM-X Subwoofer Speaker, Model SW6.1225RX https://s.lazada.co.th/s.QDZ3s?cc ................................................................................................................................................................ ZK-HT21 3G Board Specifications & Details New ZK-HT21 Mini Amp with Factory-Added Functions (No Case) Clear Mid-Highs Increased sound weight Upgraded circuit from ZK-HT21 model 2G 2.1CH amp Total power output: 540W (R 300W + L 300W + SUB 220) Uses two TDA7498E ICs Four HG5532 Opamps 3-pin input/output ports for connecting a separate mic preamp, pre-tone, or Bluetooth Sub-out port for connecting a separate subwoofer amplifier Supports TWS Supports three input ports: Bluetooth 5.0 / AUX & 3-pin / USB (Lossless) DC power supply: 15-36V