I've been using a simple and fairly inexpensive Niles 4 way switcher that I think you can still get from Crutvhfield for about $100.00. I use it to switch speakers on and off in my kitchen, sunporch, dining room and outside. It's been over 3 years and it has worked flawlessly. If you want to have control of individual volume settings they also have a more expensive box that allows for that too, all of my speakers are very close in sensitivity so a sigle volume setting for all han't been any problem for me.