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Yes, and there are many that can do that.. Please have a look at this video, it explains it quite well.https://www.youtube.com/watch?v=IrB-FPcv1Dc
Hi, nice Instructable.. You can use a P-Channel MOSFET (instead of the protection diode), with the Drain connected to the positive of the Power Supply, and the Source connects to the AMP's V+, and the gate connects to ground. Make sure you choose a Mosfet with a maximum "Gate - Source" voltage higher than the supply voltage. Something around 20V should be Ok.The advantage is that the voltage drop across the Mosfet is negligible. Make sure you also choose a Mosfet with a low RDSon (ON resistance).
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