Brent Butterworth

The "Bass Management Boot Camp" article about subwoofer setup that I wrote for the November S+V inspired an in-turn inspiring e-mail from reader Bruce Erwin. Bruce recalled his days setting up sound systems when he'd use a 1.5-volt battery to test subwoofer phase. If the sub and main speakers were in phase, he'd hear a single thump when he connected the battery to the wires leading to the sub's terminals. If they were out of phase, he'd hear a double thump.

That's with passive subwoofers, though. Almost all of today's subs have built-in amps, so this method wouldn't quite work with them. Still, it got me wondering if I could come up with a simpler phase check than the ones I suggested in the article, which required either measurement or careful listening. My e-mail convo with Bruce gave me some ideas and, ultimately, a method that's simpler than my original. And all you need to do it is a piece of free software and a meter you've either already got or can get for nothing.

One could argue that it’s silly to make a subwoofer look nice. Most subs get shoved into out-of-the-way places where even the most exotic wenge veneer, doused in seven coats of hand-rubbed lacquer and applied to gracefully arcing side panels, won’t really look any better than the cheapest black vinyl wrap glued over a plain rectangular box.

Those who find ugliness a virtue in subwoofers will love SVS’ new $769 PB12-NSD, which is about as plain as subwoofers get.

Most subwoofers are large, roughly cube-shaped black boxes that look about as elegant as a Vietnamese potbellied pig.

I predict that 2011 will be for audio what 1962 was for the art world. In 1962, Andy Warhol’s first solo shows in Los Angeles and New York swept away the prevailing aesthetic ethos of the era, demonstrating to the world that a Brillo pad box could be a work of art.