I recently bought the CS10 to replace my cheap center channel and boy what an upgrade. Now my Infinity Reference bookshelf speakers sound like garbage so I'm thinking I might replace them with some Polk floorstanding speakers.
My space is about 15 by 20, but the couch is only about 10 feet from the TV. I have a massive JBL subwoofer. Are the 50s plenty of sound (currently available for $99 each) or am I going to regret not going for the 70s (currently available for $199 each)?