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AK-170 HiFi Audio Power Amplifier 2x200W Dual Channel Stereo Digital Power Amplifier DC 12V Bass Treble Power Amp with RCA Input

TPA3116 Subwoofer Amplifier Board TPA3116D2 Audio Amp Home Theater Mini Amp 100W Bass DC12-24V

PAM8403 DIY Wireless Speaker Amplifier Board 2x5W Bluetooth-compatible 5.0 Stereo Amp Board DC Power 5V 2 Channel

AK35 Home Digital Amplifiers Audio 110-240V Bass Audio Power bluetooth Amplifier Hifi FM Auto Music Subwoofer Speakers EU Plug

RU6 Portable USB DAC Headphone Amplifier USB Dongle R2R DAC with 3.5mm and 4.4mm Headphone Output

8 Channels Headphone Amplifier Mini Amplifier with Stereo/Mono Switch Professional Ultra-Compact HiFi Stereo Audio Amplifier

0.1MHz‑6GHz Full Band Low Noise Amplifier Professional 20dB High Gain LNA RF Power Preamplifier Module

CIRMECH PAM8403 PAM8406 mini class D amplifier board with switch DIY kit

DC12-24V XH-A238 Universal Amplifier Board Bluetooth 5.0 TPA3110D2 Audio Amplifier Dual Channel 30W*2 HiFi Stereo Home Amplifier

LEPY LP-269PRO 4.1 Channel Amplifier Bluetooth 5.0 Coaxial In USB SD FM Function Subwoofer Output Home Theater Sound System