This is something I need clarification on. If you play bass through a tiny guitar amp, but play through headphones, does it still damage the amp? And I'm talking really tiny. It's one of those portable battery-powered amps, but it's still a guitar amp. I'm wondering because it's still being projected by the amp, but I don't know if it's affecting the speaker because it isn't technically playing out of the speaker. Help me out? Thanks.