Hello classicalpiano,
I am using a relatively primitive combination of audio and video and it works fine for me. My Oppo blue ray player is connected to my pre-amp with a pair of RCA IC's. Oppo is connected with a projector with an HDMI cable. My sub-woofers are connected to my pre-amp with balanced cables. My screen is retractable hanging above the windows.
My system produces fine sound stage, so I never needed a center speaker.
I hope this helps.
Good luck
lectronjh50