For some reason don't understand voltage swings and current spikes and technical stuff like that so I have 2 questions.
1.l have a DAP a hiby r6 3 could safely connect the 3.5 headphone output with a split rca cable to a tube amp and not break the amp because of voltage or current or something? 2. Is it safe to have a smart switch shut off an amplifier from a smart switch that can shut off my phone or something and not damaging the amp whithout physically turning off the amp?