Vented diaphragm: Grado headphones have a vented diaphragm
design for a large, airy, three-dimensional sound. The wooden air chambers are
hand-crafted at Grado's labs from a new specially selected species of mahogany.
An intricate procedure of curing is done between production steps to achieve
optimal sonic quality.
Drivers: The diaphragm is made of a low mass polymer,
developed with the compliance of the suspension in mind to achieve the desired
low frequency response. The diaphragm's total mass is designed to provide a full
20 kHz bandwidth, while avoiding break-up at lower frequencies. High power
neodymium magnets maximize efficiency and minimize weight. The left and right
drivers are matched to within 0.05 dB for exact imaging.
Voice Coil: The RS1i's voice-coils are wound from ultra-high
purity, long crystal (UHPLC) oxygen free copper. This high conductivity copper
yields a clear transmission and minimizes coloration, resulting in smooth, clean
and dynamic sound output.
Connecting Cord: Grado also uses UHPLC copper in the cable.
The new 8-conductor cable design improves the control and stability in the upper
and lower frequency range.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to
find elsewhere. That's because we have our own in-house Product Research
team. They verify what’s in the box, check the owner's manual, and record
dimensions, features and specs. We stay on top of new products and technologies
to help people make informed choices.