A:AnswerThis unit can be connected with the following devices iPhone, smart phone, computer, iPad, USB Flash Drive Reader, MP3, AM FM radio tuner, DVD CD player Features 2 microphone inputs for karaoke, 2 RCA inputs, 2 RCA outputs, 4 pairs of speaker terminal binding posts.
A:Answer5 speakers can be connected as long as the woofer is self amplified. By that, I mean the woofer should have it's own amplifier built in. The woofer has it's own connection on the back of the receiver outside of the four channels which makes 5 connections. You'll need a single wire rca cable to connect it. Heads up on a subwoofer that's a 150 watts and priced for around $150 made by Sony that Best Buy sells. It's a perfect match and sounds magnificent. My son has this set up for his P4 gaming console and that thing is a live party in a box. He plays with online players and his friends and he is so happy with this setup. Oh and not to mention, his headset with the built in microphone. He is in business. Once gaming is over, he can play movies on his console and utilize the surround sound the receiver has. It's so cool.
A:AnswerYes you can. I added 4 speakers and a turntable. I added a cd player. I had to buy a pre phono amplifier to plug my record player in the pre amp and then into the reciever. It sound excellent.