https://joy.videvo.net/videvo_files/video/free/2015-09/large_watermarked/Powering_on_a_Guitar_Amp_preview.mp4 Powering on Guitar Amp Female hand powers on a guitar amp. Footage is in 4k. adjustingadjustmentampamplifierbandbasselectric guitargroupguitarlivelive musicmixingmusicmusicianoffonperformancepowerstageswitchswitchingvenue