The KI Ruby Series

Celebrating 40 Years of Skill and Passion.

For his 40 years ruby anniversary at Marantz, Ken Ishiwata and his daring team crafted these two audiophile gemstones with hand-selected and custom-made components to carry all the emotions of music. The KI Ruby Series is precision-made and virtuously tuned to deliver the most enjoyable sound to amplify your senses.

• Collector‘s item
• Individually numbered
• Limited to 1.000 sets