Audio Cable (OFC series)
Audio Cable OFC Series
AL type (RCA-type phono plug)
Includes gold-plated phono plugs provide excellent corrosion resistance.
Since RCA-type phono plugs are normally inserted and removed many times, they must be highly resistant to abrasion and provide superior conductivity even after extended use. Another important consideration is the ability to withstand corrosion which can be caused by sulfuric gases and other contamination in the atmosphere.
The thick gold plating of the plugs perfectly fulfills all of these requirements.
ALC type (XLR connector)
Includes XLR type connectors with gold-plated
terminals with low contact resistance and superior corrosion resistance.
Crafted with oxygen-free copper wires and silver-plated annealed copper wires of different diameters, the central core’s insulated three-layer structure uses low-k polyethylene and expanded polyethylene to produce superb transmission.
A high-density braid and a double-layer structure using aluminum foil tape over the 192 φ 0.1 mm oxygen-free copper wires prevents any influence from outside noise.
| Model number | Cable length | Plug type |
| AL-10 | 1.0ｍ（× 2 ） | RCA-type phono plug |
| AL-15 | 1.5ｍ（× 2 ） | RCA-type phono plug |
| AL-30 | 3.0ｍ（× 2 ） | RCA-type phono plug |
| ALC-10B | 1.0ｍ（× 2 ） | XLR connector |
| ALC-15B | 1.5ｍ（× 2 ） | XLR connector |
| ALC-30B | 3.0ｍ（× 2 ） | XLR connector |
5m, 7.5m, and 10m lengths in the AL and ALC series are special-order products.
OFC Series Cable Specifications
| Phono plug | ||
| Configuration | 2-conductor shielded cable | |
| Dielectric | Polyethylene + foamed polyethylene | |
| Jacket | Blue PVC (Polyvinyl chloride) | |
| Center conductors | [Oxygen-free copper wire, silver-plated soft copper wire] × 58 |
|
| Shielded conductor | Oxygen-free copper wire × 192 | |
| Total DC loop resistance ［m ohm/m］ | 33 | |
| Interelectrode capacitance ［pF/m］ | 170 | |
| Capacitance between two center conductors ［pF/m］ | - | |
| Interelectrode inductance ［nH/m］ | 500 | |
| Insulation resistance ［M ohm/km］ | 40 | |
OFC Series Cable Specifications
| XLR connector | ||
| Format | Dual-core construction | |
| Insulator | Polyethylene + Expanded polyethylene | |
| Exterior insulation material | PVC Blue φ8.0 | |
| Central conductor | Oxygen-free copper wire + Silver plated annealed copper wire | |
| Shielded conductor | Oxygen free copper wire × 192 | |
| Conductor resistance ［m ohm/m］ | 9 | |
| Capacitance［pF/m］ | 187.5 | |
| Interelectrode ［nH/m］ | 0.68 | |
- Center conductor core wires are a combination of highly pure oxygen-free copper wires and silver-plated soft copper wires, providing excellent transfer characteristics.
- Center conductors are formed by a combination of two types of highly pure oxygen-free copper wires of different diameter and a silver-plated soft copper wire type with low resistance. The insulation layer consists of polyethylene with high dielectric resistance and foamed polyethylene, resulting in a triple layer configuration, implemented in a dual-core design. Transfer losses as well as DC resistance are minimal.
- Shielding is provided by 192 ultra-fine 0.1 mm high-purity copper wires braided to a high density, plus a layer of aluminum foil tape. This dual approach results in low capacitance and gives extra protection against any form of externally induced noise.
OFC Series Cable Cross-section View
- 1.Center conductors
- 2.Dielectric (white)
- 3.Dielectric (red)
- 4.Interstitial core
- 5.Paper taping
- 6.Shielded conductor (Braided shield)
- 7.Jacket
Accuphase Laboratory, Inc.
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