Radius Atomic Bass, Atomic Bass for iPhone

If the current trend keeps up, it's quite possible that 2009 will be the biggest year yet for new iPod earphones and iPhone earphones, fueled by the introduction of headsets that have been retrofitted with microphones and remote controls for use with Apple's latest devices. Late in 2008, we received three pairs of earphones from Japanese accessory maker Radius, which has decided to bring some of its offerings to the United States. In the U.S., the pairs are called Atomic Bass ($40), Atomic Bass for iPhone ($50, Japanese name: radHeadphones Talk with Mic), and Radius Live ($80, Japanese name: radHeadphones Live). All three are made substantially from aluminum, with the first two pairs differing only in color and the presence of a single-button remote and microphone box on the silver iPhone version versus the black iPod one; the third has a different, red metal housing and sonic characteristics.
As one might guess from the “Atomic Bass” references, all three of these headphones are very solid performers in the low-end department—at least, when they’ve been inserted correctly into your ears. Radius has gone with untraditional shapes that both look and feel good, assuming that they’re inserted and then twisted into the proper position in your ear canals, the silicone tips sealing with your ears to block out quite a bit of ambient sound. If they’re not twisted, their bass sounds anemic, leaving you with fine highs and mids. When they’re in properly, however, they provide the right quantity of bass—enough to let you hear low-end notes, but without the Darth Vader-style mid-bass-boosting effect of V-Moda’s original Vibes. By the standards of $40 to $50 earphones, these sound quite good, though the twisting motion means they’re not as easy to pop in and enjoy as the Vibes and other, simpler canalphones.
One issue does creep in with the iPhone version of Atomic Bass, however. Radius’s microphone is a step down from the one in Apple’s iPhone Stereo Headset in sound quality, possessing a similarly full-bodied, bass-rich sound, but rendering voices with slightly less clarity. More significantly, callers reported hearing a slight echo effect after each word we spoke. For this reason, we wouldn’t widely recommend the Atomic Bass for iPhone despite the fact that we really liked its sound and casing design; it may well be worth waiting for a follow-up version with a better mic and a 2008 iPod-friendly set of volume and track control buttons.