Back in January I purchased the Intimus 533-VAC Center Channel and two of the 533-T Towers. I combined them with the Onkyo 605 reciever. At the time I didn't purchase a subwoofer.  Listening to some harder rock songs made me regret that decision. Question I have is the 10" Bravus Subwoofer going to mix with the older generation towers or is the benefits of upgrading to the new generation towers worth it to match the sound. I'm looking to keep my speakers for many years.