I am considering adding a center channel speaker to augment the VA Mozart speakers I use for music and TV ... currently stereo sound only. I will be on a budget, so good condition used speaker will likely be the ticket. There are 2 considerations from VA ... Theatro Grand and Maestro Grand. Are these my best bet, or are there recommendations for other brands/models? If I stick with VA, anyone have good input on the performance difference between the Theatro Grand and Maestro Grand?