Build Your Own Hi-Fi Bluetooth Amp for the Price of a Sandwich
There are plenty of audio amplification modules out there that you can buy for a few dollars to add sound to your electronics projects. Many of them even offer Bluetooth connectivity. But one thing these modules do not offer is high-quality audio output. They get the job done for most applications, but if you are building a smart speaker or other device where sound quality really matters, you need to look elsewhere.
If you don’t mind putting in a little elbow grease, Amply is worth checking out. It is a high-quality audio amplifier and Bluetooth receiver that can be built from about $10 worth of widely available parts. For another few dollars, you can order a custom PCB to make the circuit more reliable and durable.
An optional 3D-printed case houses the hardware (📷: Marco Tabini)
Amply delivers up to 2×10 watts into 8-ohm speakers while running from a standard...
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