Gear article

Studiospares 3.5mm TRS (F) - 6.35mm TRS (M) Headphone Extension Cable 10m

The Studiospares 3.5mm TRS (F) - 6.35mm TRS (M) Headphone Extension Cable 10m is a heavy-duty audio cable designed to extend the reach of headphones or line-level jack leads. It features oxygen-free copper conductors and gold-plated connectors to ensure signal integrity over its 10-metre length.

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Background and Design

Studiospares, a UK-based supplier of professional audio equipment, designed this 10-metre extension cable to address the common requirement for increased mobility in studio and live environments. The cable is engineered to withstand the rigours of professional use, moving beyond consumer-grade equivalents through the use of heavy-duty materials and reinforced structural points.

A key design priority is durability, evidenced by the inclusion of moulded connectors. The cable exits are protected by a specific strain relief design, which is intended to mitigate the risk of internal wire breakage—a frequent failure point in cables subjected to constant movement and tension.

Technical Features

The cable utilises oxygen-free copper (OFC) for its internal wiring. OFC is preferred in professional audio applications because it facilitates high-quality sound transmission and prevents the loss of high-frequency information that can occur over longer cable runs.

Connection reliability is enhanced through the use of gold plating on both the 6.35mm (1/4 inch) TRS male jack and the 3.5mm (1/8 inch) TRS female socket. Gold is naturally resistant to oxidation and tarnishing, ensuring that the contact points remain conductive over long periods of time. Furthermore, the cable is equipped with shielding to protect the signal from external electromagnetic interference, such as noise generated by mobile phones or nearby power sources.

Practical Application

This cable acts as a bridge between professional monitoring equipment and standard headphones. The 6.35mm TRS male end is typically inserted into a headphone amplifier, mixing console, or audio interface. The 3.5mm TRS female end receives the standard small jack found on the majority of modern headphones.

At a length of 10 metres, it is particularly suited for: * Studio vocalists or instrumentalists who need to move away from the recording desk. * Engineers monitoring live sound from a distance. * Home studio setups where the playback device is situated across a room.

Comparison and Market Context

Compared to standard patch cables like the Studiospares Standard XLR or instrument cables from brands such as Ernie Ball, this extension serves a specific routing purpose. While an Ernie Ball instrument cable is designed for guitar-to-amp connections, this Studiospares cable is balanced (TRS) to maintain stereo headphone signals.

In contrast to basic adapters like the Neutrik NA2MP, which provides a physical interface change without adding length, this product combines the adaptation from 3.5mm to 6.35mm with a significant 10-metre extension. The inclusion of professional-grade shielding makes it a more robust choice than unbranded 'budget' extensions commonly found in consumer electronics.

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Frequently asked questions

What is the primary function of this cable?
It serves as a 10-metre extension for headphones, converting a 3.5mm jack to a 6.35mm plug for use with professional audio equipment.
What connectors are used on this cable?
It features a 6.35mm (1/4 inch) TRS male connector on one end and a 3.5mm (1/8 inch) TRS female socket on the other.
What is the benefit of oxygen-free copper (OFC) in this cable?
OFC ensures high-quality sound transmission and prevents the loss of high frequencies, which is essential for maintaining audio clarity over a 10-metre distance.
How does the cable handle physical wear and tear?
It is built with a heavy-duty design, including moulded connectors and a strain relief system to prevent breakage at the connector exit.
Is the cable protected against interference?
Yes, it is well-shielded to resist interference from external sources such as mobile phones and other electronic devices.
Why are the connectors gold-plated?
Gold plating is used to provide a reliable electrical connection and to prevent the connectors from tarnishing or oxidising over time.
Can this cable be used for mono signals?
While designed for stereo (TRS) signals, it can carry mono signals, though its primary purpose is for headphone monitoring.
What is the total length of the cable?
The cable is 10 metres long, providing significant reach for studio or stage use.
Does the 10-metre length cause signal degradation?
The use of OFC wiring and proper shielding is specifically designed to minimise signal loss and maintain audio quality at this length.
Is this cable suitable for professional studio use?
Yes, its heavy-duty construction and high-quality components like gold plating and shielding make it suitable for professional environments.
What happens if I plug a 3.5mm mono jack into the female end?
It will physically fit, but because the cable is wired for TRS (stereo), you may only hear audio in one ear or experience signal phase issues depending on the source.
How does this compare to a standard 3.5mm to 3.5mm extension?
This cable removes the need for an extra adapter by providing a 6.35mm male plug directly, which is the standard size for most professional headphone amplifiers.