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Spherical loudspeakers are perhaps too easily dismissed: “Oh look, it’s round. Cute gimmick. Next…” That box speakers are easy to build certainly doesn’t guarantee sound quality. In fact, designers of quality speakers are constantly rebelling against the limitations of rectangular enclosures. To curb cabinet resonance, designers build bracing into the box and stuff the interior with damping material. They curve the sides to stop standing waves from developing between parallel walls. But rather than tweak boxes, some do away with them altogether. So if you think the spherical steel shells of Orb Audio’s People’s Choice satellite speakers are mere gimmicks, think again.

Stephen Lin

Checking out the latest acquisitions during a recent visit to Vancouver, BC vintage audio dealer Innovative Audio, I noticed a lot of headphones that I hadn’t seen since the days when I wore Qiana shirts and had hair down past my shoulders.

A/V What?
An A/V receiver combines three audio components in one box. Primarily, it performs the traditional roles of a preamplifier and power amplifier. The sound for any home theater begins as a relatively low-level audio signal coming off a source component such as a cable box or disc player. These days, it’s more likely to be a digital audio signal than an analog signal. That signal gets converted between digital and analog as needed, manipulated to affect your volume adjustment, and might perhaps have some bass and treble contouring (or more sophisticated equalization) applied before it’s sent to the power amplifier, whose only job is to pump it up to the power level necessary to drive your speakers to sufficient volume.