XH-A902 NE5532 Op-Amp Module: 5x Wide Voltage Preamplifier & Tone Board

2604 AD827 Updated Stereo Preamp Tone Board Amplifier Volume Bass Treble Control Board

TA7318P HiFi VU Level Meter Driver Board DC 12V VU Meter Stereo Amplifier Board for Audio Preamp Amplifier

Tone Board A3 Class A HiFi Preamp 4 Knobs Digital Sound Remover Module Control Components

Amplifier Tone Board Preamplifier Volume Control Board Power Amplifier Module for Home Theater

Double Dual Power Amplifier Rectifier Filter Board Flat Bridge Unregulated Power Supply Board Module

TPA3116 Digital Power Amplifier Module Independent 6 Channel 5.1 Power Amplifier Module for DIY

Bluetooth Digital Power Amplifier Module 50W 50W 100W 2.1 Channel Subwoofer Sound Power Amplifier

High Power Amplifier Board Mono Channel D Type Professional PCB HIFI Power Amp Board 500W

Rectifier Filter Board Amplifier Power Supply Module Kit DIY Electronic Component

4 Ohms 3W Mono Bluetooth Power Amplifier 3.7V Lithium Battery Bluetooth Module Diy Wireless Speaker Bt Amplifier Board

HIFI OPAMP Amplifier NE5532 Preamplifier Volume Tone Control Assembled Board

Bluetooth Power Amplifier Board 2 Channel Audio Wireless Speaker Amplifier Board DC12?24V

12-35 Audio Preamplifier Board Stereo 553Panel Pre-amp

ISD1820 Recording Module Voice Module the Voice Board Telediphone Module Board with Microphones

500W Subwoofer High Power Audio Board Stereo Modules

A105 TDA7498 100Wx2 Digital Bluetooth Adjustable Volume O Power Amplifier Board

Filter Board Negative Positive Rectifier Op Amp Dual Power Voltage Regulator 12V 470uF

LM317 LM337 Voltage Regulator Module Adjustable Stabilized Board Power Supply AC10?24V Input

Audio Amplifier Board Module 600W High Power 2.0 Channel with 3.5mm Stereo Input Interface

Digital Power Amplifier Board Module PCB High Power TPA3251D2 Class D DC24?36V 350W