The Signature S150 brings Grado's latest generation of driver technology to a new price point. Featuring a newly developed 44mm S driver, the S150 delivers exceptional clarity and detail while maintaining a full-bodied, musical presentation.
An entirely new single-piece housing design introduces a contemporary refinement to the classic Grado appearance. Combined with detachable Signature Bronze cables, an updated Signature headband assembly, and lightweight construction, the S150 offers a compelling combination of musical performance, comfort, and versatility.

Customer Reviews
First of all, I was surprised that they shipped earlier than expected -- a pleasant surprise! Evern straight out of the 3.5mm out of my MacBook Pro, these sound like Grados, but refined a tad. I've been clamoring for Grado to use detachable cables as that has been one minor annoyance I've had with Grado headphones. I still have and love my GS 1000 (the original), the old PS 1000, the PS 500, and a few Grados from the Prestige line, but these S150 really do tickle my ears sonically and I love the new Signature line. I did briefly test them also with my iBasso Nunchaku and they sounded good out of that, too, but I can tell these are pretty easy to drive so all my desktop amps will handle them easily, obviously.