A:AnswerThere are 4 analog inputs, 2 digital inputs, and 1 phono input, so yes, you can hook all three of them up. There is no tape loop function so your recording would be limited. As far as the speakers, there are 5-way binding posts on the back of the unit, which will accept bare wire or banana plugs.
A:AnswerSpeaker impedance is complex and nominal speaker impedance is a simplification. I wouldn't recommend two 6 ohm speaker pairs in parallel (3 ohms) on any amplifier. Yes, I would expect this amplifier to overheat driving 3 ohms.
