https://joy.videvo.net/videvo_files/video/free/2015-09/large_watermarked/Bass_level_on_Guitar_Amp_preview.mp4 Bass on a Guitar Amp Female hand turning up bass on guitar amp. Footage is in 4k. adjustingadjustmentampamplifierbandbasselectric guitargroupguitarlivelive musicmixingmusicperformancestagevenue