RS 1x Reference Series

Tri-Wood Oasis Leading the way for our 4th gen X Drivers, the redesigned RS1x combines maple, hemp, and cocobolo wood into a vivacious and elegant headphone. SPECS Transducer Type: Dynamic Operating Principle: Open Air Frequency Response: 12 - 30,000 hz SPL 1mW: 99.8 dB Nominal Impedance: 38 ohms Driver Matched dB: .05 dB   Maple, Hemp, Cocobolo. The Sound of Wood For the first time, three different wood species are working together in a Grado headphone. The housing is made of a maple sleeve, hemp core, and cocobolo outer ring. For decades we’ve used wood for its warm and embracing tonal abilities, but finding the right balance of three separate woods is no simple task. The reward though is an RS1x that opens Grado to a new level of sound. What We’re Known For. Signature Sound Pulling everything we can from the new 50mm X Driver, our signature sound is brought to new heights when combined with maple, hemp, and cocobolo