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Amazon.com: Pyle Bluetooth Tube Amplifier Stereo Receiver - 600W Home Audio Desktop Stereo Vacuum Tube Power Amplifier Receiver w/ 2 Vacuum Tubes, AUX/MP3/Microphone Inputs, Pure Copper Speaker Output - PVTA20 : Electronics
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Monoprice Pure Tube Stereo Amplifier with Bluetooth, Line and Phono Inputs, and Qualcomm aptX Audio - Monoprice.com
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