Overview
Quickly create a new 12 VDC audio project built around the Yamaha YDA138-E amp chip. It delivers quality sound to most bookshelf speakers and has all the jacks ready to accept all external components without any soldering. It fits nicely in Hammond's 320-733 project box by drilling a few holes. Control the volume with the built-in potentiometer or plug your smartphone into the Aux-in jack and use an App to control volume and tone. The only tool you need to finish is a small slot screw driver to tighten down the speaker wires. Plug a 12 VDC 2A AC adapter into the 2.1 x 5.5mm tip positive power jack and crank it up.
There's still one more option that most small amp boards don't have. A 3.5mm stereo headphone jack the kicks out the speaker output for private listening. Pull out your best headphones and hook up your favorite audio component player or use it as a headphone amplifier for multiple headphones.
Specifications: • Power output: 10.98W x 2 RMS @ 4 ohms with 12 VDC • Frequency response: 20-20 kHz • THD+N @ rated power: 2.5% • SNR, A-weighted: 97.6 dB • Channel crosstalk: 43 dB • Max input sensitivity voltage: 230 mV • Headphone jack: 50mW • Board dimensions: 2.6" W x 4" D x 0.75" H without added jacks and controls.
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Lepai LP‑168HA 2.1 2x40W Mini Amplifier + 1x68W Sub Output
