A:AnswerInternal speakers are built into the base and provide a good, clear resonance. Even the lower frequencies sound good. The sound system is by Bang & Olufsen. You won't need external speakers unless you're seeking advanced audiophile quality.
A:AnswerThank you for reaching out. This All-in-One computer has one video output. You would then have to use a USB to HDMI adapter or something similar for a third monitor.