Ok, I have a pair of 360's 2 ports in the back. Mine are white from manufacturer. Best speaker I've ever listen to. I have the in my living room and when I want to feel the music I just turn it up. Pushing them with a mac 7200 receiver. I've had a lot of speakers from Bose to B&W and Tannoy. But by far I think one of the best speakers. Love to sit back and listen. Crystal clear