Skip to content
HomeCineSolutionsUnited States
EN
Quote
Contact
Account
Basket

Overview

Replacing metal with carbon in the conductors of an audio cable is a technical gamble that Van den Hul has been pursuing since the early 1990s. The Second was born in 1993, as a complement to The First, its coaxial interconnect. This version fitted with RCA plugs shares the same dual carbon conductor structure.

Carbon instead of metal

Where most interconnects carry the signal through copper or silver, The Second uses carbon. Each of its two conductors combines 12,000 Linear Structured Carbon fibres of 7 micrometres, individually insulated. This fibre-to-fibre insulation limits electron transfer between strands, which Van den Hul presents as a source of coloration in conventional metal conductors.

Carbon also offers an insensitivity to radio frequency interference that metal does not possess to the same degree. The downside: its series resistance is significantly higher, in the order of 36 ohms per metre according to Van den Hul, compared to a fraction of an ohm for an equivalent copper conductor. This value has no impact on a line-level connection, where the input impedance runs into thousands of ohms.

Four layers to shield the signal

The shielding comprises four superimposed layers. Two groups of silver-plated OFC copper strands, wound in a helix, flank two carbon-saturated layers. Van den Hul describes this assembly as a closed envelope, opaque to external signals.

This is what makes The Second a hybrid cable: the signal travels through the carbon, while the shielding remains metallic. The combination aims for a very low noise floor, most noticeable on quiet passages and note decays, where residual hum or hiss is most apparent.

A balanced cable wired for unbalanced use

The Second is primarily a symmetrical dual-conductor structure, derived from The First, its coaxial predecessor. The version presented here is fitted with in-house C-7.3 RCA plugs, factory-terminated, and operates in unbalanced mode, the standard mode for consumer preamplifiers and integrated amplifiers.

The same cable is also available in an XLR version for balanced connections in hi-fi systems and studios. The choice of termination does not change the internal structure, only the way the signal and ground are distributed across the pins.

The Hulliflex jacket and longevity

The outer jacket is made of light brown Hulliflex, a material Van den Hul uses for its mechanical durability and long-term stability. Treated filler fibres resist moisture ingress, keeping the cable’s capacitance stable. Halogen-free and 7.3 millimetres in diameter, the cable remains flexible enough to be routed behind furniture without placing excessive strain on the plugs.

Technical Specifications

Electrical Specifications

  • Core resistance: 3.6 Ω / m
  • Capacitance: 68 pF / m
  • Impedance: 75 Ω in digital

Construction

  • Conductor type: twin core
  • Technology: Linear Structured Carbon (LSC)
  • Conductor: 2 groups of 12,000 insulated 7 µm LSC fibers
  • Quadruple shielding:
    • 204 LSC fibers, in 4 layers
    • 2 layers of high-density OFC (oxygen-free copper) strands
    • Helically wound strands
    • Silver-plated coating
    • 2 LSC-saturated layers
  • Insulation:
    • Polyethylene foam
    • Light brown Hulliflex outer jacket, high mechanical resistance and excellent durability

Dimensions

  • Outer diameter: 7.3 mm
  • Length: 2 × 1 m

Advantages

  • Very high protection against external noise and interference
  • Excellent audio signal transmission
  • Reduced background noise
  • Long service life thanks to the durable outer jacket
  • Suitable for high-end hi-fi and professional audio installations

Frequently Asked Questions

Is The Second RCA sold individually or as a pair?

The standard packaging is a stereo pair, meaning two identical cables for the left and right channels of an analogue connection. For digital use via S/PDIF, a single cable is sufficient, as the connection carries only one channel.

Can this cable be shortened or re-terminated at home?

No. The plugs are factory-fitted by Van den Hul, as connecting the 24,000 carbon fibres of the two conductors requires specific tooling and expertise. The cable is also not sold by the metre on a reel. It is better to choose the right length from the outset rather than planning to cut it later.

Is The Second RCA suitable for connecting a turntable?

Yes, between the turntable output and the phono input of a preamplifier, provided it is used with moving magnet cartridges or high-output moving coil cartridges. Very low-output cartridges require a dedicated cable with lower capacitance and particular attention to grounding.

Does the high resistance of carbon cause any audible issues?

Not on a line-level connection. An amplifier input presents an impedance of several tens of thousands of ohms, against which the few tens of ohms of the conductor count for almost nothing. This resistance does, however, rule out any use as a speaker cable, where the current involved is of an entirely different magnitude.

Is a burn-in period required before making a judgement?

Van den Hul does not specify a particular burn-in period for this model. As with most cables, it is better to leave it in place for a few days and evaluate it on familiar tracks rather than on first connection. The differences to be expected on a line-level connection are in any case subtle.

User reviews

Filippo

The Van Den Hul "The Second" cable has the particular feature of being built (entirely) with non-metallic wires, namely carbon.
To be precise: "Twin core (metal free and halogen free) central multi-strand conductor (12000 strands of 7 microns) in linear structured carbon".
The renowned and historic Dutch manufacturer offers in its catalog, in addition to traditional cables in copper, silver-plated copper, silver, various hybrids, etc., also a carbon model, in order (it is reported) to avoid any "metallic" sense to the sound.
I am in fact experiencing significantly relevant effects on the overall final result.
Listening on headphones is by its nature detailed, also due to the fact that, being detached from the external environment (as instead happens with the traditional stereo system with speakers), it does not suffer any interference or dispersion.
Therefore, it is appropriate to look for synergies between the components (including cables) such as to allow a correct, realistic and possibly natural final rendition of the music that aims at fluidity, smoothness, rather than pushed detail.
The conclusion is that a cable that is even more economical than others (I own models that cost up to ten times more than the one in question), if properly matched, can give results that even much more expensive cables will not give because they are not correctly matched.
I would extend this principle to every component of the system...
But going back to the Van Den Hul "The Second" cable, I can say with conviction that it acts in a decisive way and to a decisive extent in improving every parameter of listening. You get that sense of realism, naturalness and fluidity that digital sources and software usually tend not to put in the foreground.
I would also add the feeling of great tangibility and fullness of the sound without sacrificing the layering of the sound planes and the soundstage.
Excellent purchase!!

Comment from March 02, 2026 — Experience from February 19, 2026

Automatically translated — Show original (Italian)
Il cavo Van Den Hul "The second" ha la particolarità di essere costruito (interamente) con fili non metallici bensì in carbonio.
Per l'esattezza:" Twin core (metal free and halogen free) conduttore centrale multi filare (12000 trefoli da 7 micron) in linear structured carbon".
La rinomata e storica casa produttrice olandese, prevede in catalogo, oltre ai tradizionali cavi in rame, rame argentato, argento, ibridi vari ecc. anche un modello in carbonio, al fine (viene riferito) di evitare qualsiasi senso "metallico" del suono.
Sto infatti sperimentando degli effetti sensibilmente rilevanti sul risultato finale d'insieme.
L'ascolto in cuffia è per sua natura dettagliato anche in ragione del fatto che, essendo avulso dall'ambiente esterno (come invece avviene per l'impianto stereo tradizionale con i diffusori) non subisce alcuna interferenza o dispersione.
Pertanto si rende opportuno cercare delle sinergie tra i componenti (cavi compresi) tali da consentire una giusta, realistica e possibilmente naturale resa finale della musica che punti alla fluidità, alla scorrevolezza, più che al dettaglio spinto.
La conclusione è che un cavo anche più economico di altri (in mio possesso modelli dal costo anche dieci volte più elevato di questo in argomento) se opportunamente abbinato, può dare risultati che cavi anche ben più costosi non daranno poiché non giustamente abbinati.
Questo principio lo estenderei a ogni componente dell'impianto...
Ma ritornando al cavo Van Den Hul "The second", posso dire con convinzione che agisce in maniera e misura determinanti al fine di migliorare ogni parametro dell'ascolto. Si raggiunge quel senso di realismo, di naturalezza e fluidità che, solitamente, le sorgenti e il software digitale, tendono a non porre in primo piano.
Aggiungo anche la sensazione di grande matericità e pienezza del suono senza sacrificare la stratificazione dei piani sonori e del soundstage.
Ottimo acquisto!!

Jean luc

I'm switching from a supra EFF to this VDH The second... My entire usual listening experience has been turned upside down... New reference points are establishing themselves with each listen... Everything is better... Sometimes too much so... With bass to savor... An expansiveness to the entire message... This is a successful investment!

Comment from June 29, 2023 — Experience from September 10, 2022

Automatically translated — Show original (French)
Je passe d'un supra EFF à ce VDH The second... Toute l'écoute habituelle est chamboulée... De nouveaux repères se mettent en place au fil des écoutes... Tout est mieux... Parfois trop... Avec des basses à déguster... Une ampleur de tout le message... Voilà un investissement réussi !

Philippe

Excellent cable, at an affordable price as is often the case with Van den Hul.

Comment from October 22, 2022 — Experience from April 24, 2021

Automatically translated — Show original (French)
Excellent câble, à un prix abordable comme souvent chez Van den Hul.
  • Eco-contribution included in the sale price.
  • Manufacturer reference: B47AA010
HomeCineSolutions
Loading