The new Ortofon Reference Interconnect cables Series is designed and manufactured by Ortofon Japan Each of the new Reference series cables has its individual sonic expression:- The Reference Red is an all-purpose, decent, but not too expensive cable that would be a great addition to any audio equipment. The sound is relaxed, warm and dynamic with high resolution.- The Reference Blue is a dynamic and high-resolution cable that reveals detailed reproduction throughout the spectrum.- The Reference Bronze has an astonishing wide-range, clear and neutral sound.- The Reference Black is a new generation reference audio cable par excellence with a well-balanced, neutral and precise sound. Ortofon Reference Blue cable 4N HiFC (High performance pure copper) combined with 4N OFC (Oxygen-free copper) in the correct proportions ensures transparent and stable wide-range sound. The three bundles of the different conductors are placed in an equilateral triangle, hold into position and dampened by Halogen-free highly resilient elastomer material.The original Ortofon gold plated RCA terminals feature a collet chuck mechanism, which ensures easy and stable connection over time, even when connected and disconnected many times. • Cable capacity: 360 pF/m• Cable length: 1.0 m or 1.5 m• Terminal type: RCA• 2 pieces per set Reference Blue technical configuration ① Signal conductors: OFC (Oxygen-free copper) Ø 0.18 mm × 20② Signal conductors: OFC (Oxygen-free copper) Ø 0.12 mm × 30③ Signal conductors: HiFC (High performance pure copper) Ø 0.08 mm × 49④ Damping material: PE Ø 1.4 mm×4⑤ Shield: Aluminuim tape⑥ Shield: Braided 4N OFC Ø 0.12 mm × 8 × 16⑦ Insulation: Halogen-free highly resilient elastomer⑧ Insulation: Braided nylon fiber⑨ Cable diameter: Ø 8 mm⑩ Damping material: Enhanced chemical fiber (proprietary material)⑪ Insulation: PE