Grado Signature HP100 SE Special Edition Open-Back Headphones 2nd day ship the most powerful output of

the most powerful output of any Astell&Kern player

S8Z has upgraded the drivers with adopting Sonion 37 series compound bass drivers

5* W21xT12mm

Although smaller in size

Upgraded GMT clock system eradicates jitter and enhances sound quality

Grado Signature HP100 SE Special Edition Open-Back Headphones 2nd day ship the most powerful output ofSignature HP100 SE Grados new Signature HP100 SE headphones are a contemporary homage to the trailblazing high end HP1 model heralding a new design direction. World renowned designer and manufacturer of award winning headphones, Grado Labs presents its newest and flagship model, the Signature HP100 SE. Grado Labs founder Joseph Grado created what many consider to be the high end headphone market with the release of the Signature HP1 headphone in the