Furutech DSS-4.1 Speaker Cable

Alpha OCC-DUCC Speaker Bulk Cable DSS-4.1

Furutech’s α (Alpha) OCC‐DUCC is one of a select few of conductors that Furutech engineers have found to excel in sound reproduction. α (Alpha) OCC –DUCC is constructed using a combination of DUCC Ultra Crystallized High Purity Copper and Furutech’s world famous Pure Transmission α (Alpha)-OCC.

Furutech DUCC Ultra Crystallized High Purity Copper -- supplied and regulated with strict quality control by Mitsubishi Materials Industries -- is one of the best conductors Furutech engineers have found for signal transmission. (MMI is the leading manufacturer of the highest-purity oxygen-free copper in the world) Mitsubishi process this extremely pure oxygen-free copper with new technology that optimally aligns the crystals while reducing the number of crystal-grain boundaries resulting in a tremendously efficient conductor. Straight OCC’s benefits are its larger “fibrous” crystals in which one dimension is longer than the other two so as to create as few crystal junctions as possible. Thus, OCC’s sensitivity to directionality; one path exhibits the least resistance. Furutech’s world famous Pure Transmission α-OCC is the result of further processing with the Alpha Super Cryogenic and Demagnetizing treatment. However, DUCC purity goes a significant step further. Mitsubishi Materials designed the new conductor to optimally align the copper crystal grain structure in addition to reducing crystal grain boundaries. As a result, DUCC is less sensitive to directionality than OCC.

Specifications

Conductor Material: Alpha-OCC  +  α-DUCC (7N Class)

Construction（pcs／mm):

Center – 1/0.8 PE core

Inner – 89/0.18α-OCC (Right rotate)

Middle – 39/0.18α-OCC (Left rotate)

Outer – 62/0.13α-DUCC (Right rotate)

Diameter （mm): 2.58 Approx.

Size: 11AWG / 4.08 Sq.mm

Inner Material: Audio Grade FEP (Fluoropolymer) 

Outer Material: Audio Grade P.E.(Brown for”+”、Blue for “-“)

Diameter  （mm): 5. 5

Twisting Method: 2 Cores Twisted Together  

Fillers: Polyester fibers Filler

Barrier Layer-1: Non-Woven Fabric wrap

Inner Sheath Material: Audio Grade Flexible PVC (Black). Nano-Ceramic / Carbon particle compound

Diameter   （mm): 15.0

Shield Material: Cu-Foil + Braided OFC

Barrier Layer-2: Paper wrap

Outer Sheath Material: Audio Grade Flexible PVC (Dark purple)

Nom. Thickness（mm): 1.2

Outer Sleeve Material: Nylon yarn stranded braid(Black/Silver)

Overall Diameter （mm): 19.0 Approx.

Electrical Properties

Max. Conductor Resistance     Ω／km    4.5   JISC3005  6    20℃ 

Insulation Resistance         MΩ‧km >2500   JISC3005  9.1   20℃ 

Capacitance                  PF/M 51.69    Approx. at 1 KHz

Inductance                   uH/M 0.7      Approx. at 1 KHz

Dielectric Strength           V/1 min.    AC  3000         JISC3005  8