http://www.macnn.com/articles/11/10/24/earpieces.acoustically.matched/
Westone intros 4R quad-driver earphones with removable cable
updated 09:20 pm EDT, Mon October 24, 2011
Earpieces acoustically matched
Westone has expanded its earphone lineup with the 4R, a new quad-driver design that is claimed to offer a range of upgrades geared for audiophiles. The symmetrically-balanced armature drivers are connected to three-way crossovers to separate frequencies, ranging from 10Hz to 18kHz, while the earpieces are said to be acoustically matched to with a +/- 2dB tolerance.
The 4R also feature a removable low-profile cable, reinforced by Aramid fibers and constructed with ultra-low resistance wire. The cables are designed to wrap over the ear for improved comfort and isolation from cable noise.
Westone has yet to announce pricing details or a launch date for the 4R earphones.
