Grado RS1x Reference series Headphones [2nd hand]

Grado RS1x Reference series Headphones.

Featuring a new species of handcrafted Mahogany earpieces made using an intricate curing process; Grado has been able to optimize the tonal quality. The RS1 uses new upgraded dynamic transducers and the new 8 conductor cable design all in an open-air configuration, the cups being open-backed. The result is a smooth, controlled and coherent sound with detailed dynamics. Frequency response ranges from 12-30 kHz and the drivers are matched to 0.05dB. Weighing 9oz, the headphones are an example of the wonder of Mother Nature with a gorgeous, dark-colored Mahogany look.


Features:
Vented diaphragm
Wooden air chamber
UHPLC copper voice coil wire
UHPLC copper connecting cord

Tranducer type: dynamic
Operating principle: open air
Frequency response: 12-30
SPL 1mV: 98
Normal impedance: 32ohms
Driver matched db: .05