Etymotic Research today announced that its 6i Isolator earphones are now available in black, in addition to the original white. The 6i earphones are designed specifically for use with the iPod and other small portable players, providing greater sound output and enhanced bass, says the company. “The mildly enhanced bass and greater output of these earphones retains the high frequency response accuracy that Etymotic is known for,” said Mead Killion, Ph.D., founder and president of Etymotic Research. “The 25-band accuracy score of these earphones still exceeds 80%, which is higher than any earphones not made by Etymotic.” 6i Isolator Earphones are priced at US$149.