Reference Series

Grado RS1i Headphones

Transducer type:

Dynamic

Operating principle:

Open Air

Frequency response:

12–30 kHz

SPL 1mW:

98 dB

Nominal impedance:

32 ohms

Driver Matched dB:

±0.05

Ear pads:

L Cushions (Bowl Pads)

Grado RS1i Headphones

The Grado RS1i, released in 2008, represented the pinnacle of the Reference Series during the “i” era. Building upon the legacy of the original RS1, this model combined Grado’s signature sound with handcrafted artistry, delivering a listening experience that was both refined and immersive. Known for its premium mahogany housings and wide soundstage, the RS1i became a favorite for audiophiles seeking a high-end headphone with a warm, natural sound signature.

Facts

History and Trivia

Build Quality and Design

Sound Description

Modding Potential

The RS1i continued Grado’s tradition of combining artisanal craftsmanship with innovative acoustic design, earning its place as the flagship model of the Reference Series.

"i" Series Updates: The RS1i introduced a thicker cable and slightly larger housings to enhance durability and improve acoustic performance.
Mahogany Excellence: Handcrafted from premium mahogany, the housings were carefully tuned to provide a rich, resonant sound while showcasing Grado’s commitment to artistry.
Legacy: The RS1i maintained its status as a top-tier headphone until its successor, the RS1e, was introduced in 2014.

The RS1i’s design reflects Grado’s dedication to quality and detail, combining premium materials with a timeless aesthetic.

Materials: Handcrafted mahogany housings, finished with precision to maximize acoustic resonance and aesthetic appeal.
Headband: Leather-covered metal band, offering flexibility and moderate comfort for extended listening sessions.
Cable: Thicker fixed Y-cable with UHPLC copper wiring for optimal signal transmission and durability.

While the RS1i’s lightweight construction made it comfortable for most users, the minimal padding on the headband could become a limitation during extended listening sessions.

The RS1i delivered an expansive and natural sound signature, making it a standout choice for audiophiles who value tonal accuracy and detail.

Bass: Deep and controlled, providing a solid foundation without overpowering the mids or treble.
Mids: Rich and forward, with exceptional clarity that brought vocals and instruments to life.
Treble: Extended and airy, offering incredible detail and sparkle without harshness.
Soundstage: Wide and immersive, with precise imaging that excelled in genres like classical, jazz, and live recordings.

The RS1i’s warm and natural tonality made it a versatile performer across a variety of genres, though its tuning was particularly well-suited for acoustic and orchestral music.

As a flagship model, the RS1i required careful handling for mods, but it still attracted enthusiasts interested in tailoring its comfort or functionality.

Common Mods:
- Swapping ear pads for G-Cush or Nyczaj Earpads to enhance comfort and soundstage.
- Upgrading the headband for additional padding and support.
- Re-cabling to add detachable connectors or enable balanced audio setups, though this required expertise to preserve the wooden housings.

Collectibility and Reception

The RS1i remains one of the most celebrated models in Grado’s history, revered for its craftsmanship, sound quality, and collectibility.

Community Reception:
- Praised for its expansive soundstage, tonal warmth, and luxurious design, the RS1i earned a loyal following among audiophiles and collectors.
- Some listeners found the treble slightly bright for certain genres, but its overall balance and detail were widely appreciated.
Rarity:
- The RS1i is highly sought after on the second-hand market, particularly in pristine condition or as part of a complete Grado collection.

The Grado RS1i exemplifies Grado’s commitment to blending traditional craftsmanship with cutting-edge sound engineering. As the flagship of the Reference Series, it offers a listening experience that is both immersive and detailed, making it a timeless choice for audiophiles and collectors alike. Whether used for critical listening or as a cherished piece in a collection, the RS1i stands as a testament to Grado’s legacy of excellence.