General Information
The Celsus Gramo One is a reference-grade open-back* in-ear headphone that sits comfortably on the outer ear.
One's first - and enduring - impression is of an overwhelming, three-dimensional audio experience that can fairly be described as a virtual live event. The proprietary 16 mm Celsus Sound transducer produces a sense of space, depth, detail and dynamic as impressive as that of an audiophile's dream sound system. A mesmerizing midrange and dynamic bass are among the more impressive of the Celsus Gramo One's signature qualities. And no IEM we've ever heard can match the Gramo One's production of seductive vocal textures.
The term reference-grade typically connects with a few widely celebrated over-ear and on-ear headphones. Their drawback - and it's a serious one - is weight and size as principal contributors to listener fatigue. In recent years, a few in-ear headphones (IEM) have achieved reference-class status. Again, as a drawback, IEM devices suffer from an ultimately fatiguing "music-in-the-middle-of-one's-head" phenomenon along with the excessive ear pressure that inevitably accompanies prolonged listening. With the portability of an IEM, the Celsus Gramo One's exceptional sound quality equals or betters the most highly regarded over-ear headphones.
*Open-back earbud is specifically designed for quiet environments, it does not have noise isolation
One's first - and enduring - impression is of an overwhelming, three-dimensional audio experience that can fairly be described as a virtual live event. The proprietary 16 mm Celsus Sound transducer produces a sense of space, depth, detail and dynamic as impressive as that of an audiophile's dream sound system. A mesmerizing midrange and dynamic bass are among the more impressive of the Celsus Gramo One's signature qualities. And no IEM we've ever heard can match the Gramo One's production of seductive vocal textures.
The term reference-grade typically connects with a few widely celebrated over-ear and on-ear headphones. Their drawback - and it's a serious one - is weight and size as principal contributors to listener fatigue. In recent years, a few in-ear headphones (IEM) have achieved reference-class status. Again, as a drawback, IEM devices suffer from an ultimately fatiguing "music-in-the-middle-of-one's-head" phenomenon along with the excessive ear pressure that inevitably accompanies prolonged listening. With the portability of an IEM, the Celsus Gramo One's exceptional sound quality equals or betters the most highly regarded over-ear headphones.
*Open-back earbud is specifically designed for quiet environments, it does not have noise isolation
