Eau Rouge High-Purity Copper Speaker Cable ER-SP333AGmk2 Set of 1

Litz structure with 1,500 ultra-fine copper wires – transmits delicate signals without loss

The Eau Rouge ER-SP333AG mk2 speaker cable uses an enamel-insulated, ultra-fine 0.04mm diameter copper wire bundled into 1,500 strands in a Litz wire structure called “Eau Rouge No.411” as its conductor. This Litz wire offers uniform transmission characteristics that minimize loss of tiny signals, naturally bringing out the music’s attack, sense of space, and phase accuracy.

Use of pure silver Y-lugs – high-purity transmission without sound coloration

One of the major features of the ER-SP333AG mk2 is the use of pure silver Y-lugs, designed with the same concept as the higher-end model SP533. Silver has the highest electrical conductivity of any metal, allowing delicate signal changes to be transmitted to the speakers without loss. This eliminates sound coloration and accurately reproduces even the smallest nuances. In practice, the effects of pure silver Y-lugs are clear: they increase the amount of information, sharpen image focus, and provide smooth, natural high-frequency expression, greatly contributing to the serene and three-dimensional soundstage that Eau Rouge values.

Calm, natural sound with rich expansiveness

The sound of the ER-SP333AG mk2 is never about exaggeration or showiness. It is described as “quiet, dignified sound” that possesses rich expression within a calm character. Thanks to very consistent phase characteristics, the soundstage spreads gently and majestically, with overtones extending naturally and smoothly. The cable allows you to feel the lively presence of the recording space’s air and atmosphere directly, which is a defining charm of this cable.
This cable excels in genres where tone purity and sense of space are important, such as classical music, chamber music, acoustic performances, and vocals, enhancing the overall transparency of the system.

Improvement in Sense of Speed and Resolution

• The first thing I noticed after switching to this cable was how much faster the attack of the sound became.
  Perhaps due to the silver-plated conductors, the response is extremely quick, the outlines of the sound become sharper, and the overall music gains clarity and dynamism. The difference is particularly evident in fast-paced tracks, giving a light, engaging feeling that makes you want to move with the music.
  
• It was also impressive that the resolution improved across all frequency ranges, significantly increasing the amount of audio information.
  Subtle nuances and changes in the atmosphere can now be heard more clearly, making me realize, 'So this is what was in the sound,' allowing me to enjoy the music in a fresh way.
  

Sound Balance and Spatial Expression

• Silver-plated conductors often evoke thoughts of harsh, piercing highs, but with this cable, there is none of that; instead, the highs extend naturally and pleasantly.
  Perhaps because the high-purity copper core reliably supports the lows and mids, richness and stability are maintained, resulting in an overall well-balanced sound.
  
• The soundstage has also expanded, with significantly improved depth. With the higher resolution, the positions of instruments and vocals become clearer, naturally creating a three-dimensional space.
  

Quality and Usability

• It is also a plus that the cable is easy to handle. It has a moderate softness and is not heavy, which reduces the burden on equipment and minimizes stress in wiring. I feel this is a highly refined cable that successfully balances ease of handling and sound quality.