Grado RS1x

Grado RS1x Open-Back Hi-Fi Headphones

The Grado RS1x are the latest iteration of the renowned RS1 series of open-back headphones from the Brooklyn-based audio company. As the flagship model of Grado’s Reference series, the RS1x represents the culmination of decades of experience in crafting high-end, hand-assembled headphones. This fourth-generation model introduces several innovative design elements and technological advancements that elevate Grado’s signature sound to new heights.

Design and Build Quality

Three-Wood Housing

One of the most striking features of the RS1x is their unique three-wood housing. For the first time in Grado’s history, three distinct types of wood are used in the construction of the ear cups:

• Maple: Forms the sound foundation, bringing warmth and tonal richness
• Hemp: Smooths out high and low frequencies for a more balanced presentation
• Cocobolo: Adds punch and dynamism to the sound

The combination of these carefully selected woods results in a rich, dynamic, and well-defined sound, quintessentially Grado.

Handcrafted Artistry

Each pair of RS1x headphones is meticulously hand-assembled by skilled artisans in Grado’s Brooklyn workshops. The attention to detail and craftsmanship is evident in the premium materials and precise construction. From the hand-stitched leather headband to the polished metal joints, every component is designed and manufactured to the highest quality standards.

Comfort and Ergonomics

Despite their imposing appearance, the RS1x headphones are surprisingly lightweight and comfortable to wear for long listening sessions. The redesigned headband is made of soft black leather with white stitching, combining style and comfort. Grado’s iconic L-cushion ear pads, made of plush foam, offer a secure and comfortable fit while allowing the open design to breathe.

Sound Quality

50mm X Drivers

At the heart of the RS1x are the new 50mm X drivers. These larger transducers, specially tuned for the three-wood housing, feature several improvements over their predecessors:

• More powerful magnetic circuit for better efficiency
• Lighter voice coil for reduced distortion
• Optimized diaphragm design for better harmonic integrity

These advancements result in a more refined, detailed, and dynamic sound, true to Grado’s sonic signature.

Frequency Response and Tonal Balance

The RS1x boasts an impressive frequency range of 12 Hz to 30kHz, ensuring every detail of the music is faithfully reproduced. The open design allows for a spacious and airy soundstage, with precise imaging and instrument separation. The tonal balance is characterized by a slightly forward midrange, emphasizing vocals and acoustic instruments, while the bass is tight and articulate. The highs are well-extended and detailed, with a smooth and non-fatiguing presentation.

Musical Genres and Pairings

Thanks to their revealing and engaging sound, the RS1x headphones excel across a wide range of musical genres. They are particularly well-suited for:

• Acoustic and instrumental music
• Jazz and classical
• Rock and metal
• Vocally-centered genres

The open and dynamic nature of the RS1x allows listeners to discover new details and nuances in their favorite recordings, making them an excellent choice for critical listening and musical appreciation.

Cable and Connectivity

The RS1x are equipped with a newly designed 8-conductor cable made of ultra-pure copper. This cable, which is permanently attached to the ear cups, offers better signal transfer and reduced interference compared to previous models. The cable ends with a sturdy 3.5 mm plug, with a 6.35 mm adapter included for use with high-end audio equipment.

Key Benefits

• Unique three-wood housing for rich and dynamic sound
• Handcrafted craftsmanship and premium materials
• Comfortable and lightweight design
• New 50mm X drivers for enhanced performance
• Wide frequency range and revealing sound signature
• Excellent for critical listening and musical appreciation
• High-quality 8-conductor cable for optimal signal transfer

Technical Specifications

General Specifications

• Transducer type: dynamic
• Operating principle: open
• Frequency response: 12 - 30,000 Hz
• Sound pressure level: 99.8 dB at 1 mW
• Nominal impedance: 38 Ω
• Transducer matching: 0.05 dB

Construction

• Size L ear cushions
• Housing made of three types of wood: maple, hemp, cocobolo
• Hand-assembled in Brooklyn

X Series Transducers

• Specially designed 50 mm X transducers
• Technical features:
  • Optimized magnetic circuit
  • Reduced-mass voice coil
  • Redesigned diaphragm
  • Improved efficiency
  • Reduced distortion
  • Preservation of musical harmonic integrity

Cable and Headband

• 8-conductor ultra-pure annealed copper cable
• Reinforced sheath
• More precise and pure musical reproduction
• Black leather headband with white stitching

Acoustics

• Combination of three woods:
  • Maple: sound foundation
  • Hemp: balance of spectrum extremes
  • Cocobolo: final touch
• Spacious, dynamic, and precise sound