Brent Butterworth

As I said in Monday’s coverage of headphones and Wednesday’s coverage of speakers, Denver’s Rocky Mountain Audio Fest is the biggest, most exciting, and most important of the regional hi-fi shows that have sprung up all over the U.S. and Canada.

Tube-shaped subs are popular with DIY-ers because they’re easy to construct. Just grab a cylindrical concrete form at Home Depot, slap some ends?on it, and you’ve got a nice subwoofer enclosure. But SVS features tube-shaped subs in its line not because they’re easy to build; it’s because the form factor makes them perfect for certain rooms. At 16.6 inches in diameter, the company’s PC-13 Ultra takes up less than half the floor space of its comparable box-shaped sub, the PB-13 Ultra. A PC-13 Ultra can slip almost unnoticed into a corner, while the PB-13 Ultra can slip unnoticed into... well, maybe an aircraft hangar.

The surest way to future success is to repeat your past successes. Like that line? I made it up. If you think it’s a lot of B.S., I present as irrefutable evidence the careers of Andy Warhol and Roy Lichtenstein. Also the Paradigm Millenia CT, a 2.1 speaker system based closely on the MilleniaOne, our 2011 Product of the Year.

Room correction systems that optimize your audio system for the acoustics of your room have been around for more than a decade — but frankly, they’ve never won me over, and I’m finally starting to understand why.