We’ve received a few inquiries from readers about a music track I’ve mentioned in recent subwoofer reviews. Considering that I’ve described the piece in question as having “the most intense low bass I’ve ever heard,” this interest isn’t surprising.

I haven’t tried every audio-oriented app for Android phones, but I’ve tried a bunch. Not surprisingly, the one I like best by far costs $6.99, which for an Android app is a truly Rolls Royce price. Yet it’s also the most insane deal of all time for DIY audio measurement software.

An audio reviewer hears two lines over and over: “That never happened with any of the other samples” and “We created this [fill in the blank] because the products that are out there now are inadequate.” I heard the second line last week in a ramshackle Van Nuys, California industrial space bordered by a security gate and half-filled with piles of decades-old test gear. Unlikely as the setting seemed, its tenant actually delivered on his claims.

The review I just wrote of the Sonos Play:3 streaming music system, and another I recently finished of several small Bluetooth speaker systems (you’ll see the full results soon in the print edition of Sound+Vision) reminded me of just how important listening is in audio produ