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The Viablue NF-S5 is a RCA to RCA phono cable designed to transmit very low-level analogue signals between a turntable and a phono preamplifier. It features silver-plated OFC copper conductors combined with a capacitance of approximately 50pF/m, to limit load effects on the cartridge and preserve the frequency response. The internal structure is built around a central polypropylene core and polyethylene insulation with low electrostatic charge, which helps to stabilise the cable’s electrical parameters over time.
Designed for phono setups, it features multi-layer shielding combining braided and foil shielding, extended all the way to the connectors to prevent any breaks in continuity. This approach minimises the intrusion of electromagnetic interference whilst utilising a dedicated ground connection to dissipate noise without creating a loop. The RCA connectors ensure a stable connection and low background noise, making them suitable for sensitive analogue systems.
The silver-plated OFC copper conductors reduce line resistance, preserving the subtle variations in the signal from the cartridge, whilst the capacitance of 50pF/m limits interaction with the preamplifier’s input impedance, preventing any distortion of the high-frequency response.
This approach is extended by an internal design that separates the channels and ground planes, reducing crosstalk, whilst the continuous shielding and external ground connection ensure controlled dissipation of interference. Together, these features maintain signal integrity right up to the phono stage, under conditions suited to the low-level signals from a cartridge.


| 1 | Soft cable sheath |
| 2 | Banding, fleece |
| 3 | Spiral shield, tinned OFC strands |
| 4 | Foil shield, ALU PET silver |
| 5 | Soft filler |
| 6 | Inner conductor, silvered OFC strands |
| 7 | Ground wire, silvered OFC strands |
Technical characteristics
| Specifications | |
|---|---|
| Product type | Phono cable |
| Length | 2m |
| Connectors | 4x RCA 2x Ground wire |
| Cable conductor material | Silver-plated OFC copper |
| Connectors contacts plating | Gold |
| Conductor capacitance | 50pF/m |
| Shield capacitance | 100pF/m |
| General | |
|---|---|
| Color | Black |
| Package | Sold individually |
| Length (m) | 2.0 |
| Shielding | Yes |
| Section (mm²) | N/A |
| Connector | RCA |
| Conductors material (Cable) | Copper |
| Conductors Plating (Cable) | Silver |