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QTX 6.3mm Stereo Jack Socket to Socket Coupler

£199
The RRP is the manufacturer's recommended retail price of the item.
Limited Stock
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Description

The QTX 6.3mm stereo jack coupler is an inline connector with female 6.3mm stereo jack sockets on both ends, designed to join two existing 6.3mm jack cables together when additional cable length is needed. The coupler passes three-pole stereo signals or balanced mono signals between cables without re-soldering or replacing entire cable runs.

Used primarily in studio, rehearsal and live sound environments where microphones, instruments, headphones or line-level gear need extending beyond the length of a single cable. The inline design means the coupler sits between two cables rather than requiring a separate adaptor box, keeping signal paths short and reducing points of potential interference. The metal-bodied construction provides screening against RF noise and a secure threaded connection that resists accidental disconnection under stage or studio handling.

The 6.3mm stereo jack (also known as 1/4-inch TRS) is the standard professional audio connector for balanced mono microphone and line signals, and unbalanced stereo headphone signals. The QTX coupler accommodates both wiring schemes, making it compatible with the majority of professional audio cables in the UK and European markets. The compact 35mm length and 12mm diameter mean the coupler adds minimal bulk to a cable run and fits comfortably in a cable bag or tool case.

Frequently Asked

Does this work with both balanced and unbalanced signals?

Yes. The three-pole socket configuration supports balanced mono (tip-ring-sleeve wired as positive, negative, ground) and unbalanced stereo (tip-ring-sleeve wired as left, right, ground). The coupler does not alter the signal, so the cable's own wiring determines whether the signal is balanced or stereo.

Will it fit mono 6.3mm jacks?

A two-pole mono 6.3mm jack plug will physically insert into the coupler and make contact with tip and sleeve, but the ring connection will be unused. For mono-to-mono extension, a dedicated mono coupler avoids unused contacts, though this stereo version will function.

What's the maximum cable length I can extend to?

Practical limits depend on the cable type and signal level. For line-level balanced signals, total cable runs of 50-100m are common without noticeable degradation. For instrument-level unbalanced signals (guitars, bass), runs above 10m may pick up noise or lose high frequencies depending on cable capacitance. The coupler itself does not degrade the signal, but longer total cable lengths increase susceptibility to interference and capacitive loss.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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    Description

    The QTX 6.3mm stereo jack coupler is an inline connector with female 6.3mm stereo jack sockets on both ends, designed to join two existing 6.3mm jack cables together when additional cable length is needed. The coupler passes three-pole stereo signals or balanced mono signals between cables without re-soldering or replacing entire cable runs.

    Used primarily in studio, rehearsal and live sound environments where microphones, instruments, headphones or line-level gear need extending beyond the length of a single cable. The inline design means the coupler sits between two cables rather than requiring a separate adaptor box, keeping signal paths short and reducing points of potential interference. The metal-bodied construction provides screening against RF noise and a secure threaded connection that resists accidental disconnection under stage or studio handling.

    The 6.3mm stereo jack (also known as 1/4-inch TRS) is the standard professional audio connector for balanced mono microphone and line signals, and unbalanced stereo headphone signals. The QTX coupler accommodates both wiring schemes, making it compatible with the majority of professional audio cables in the UK and European markets. The compact 35mm length and 12mm diameter mean the coupler adds minimal bulk to a cable run and fits comfortably in a cable bag or tool case.

    Frequently Asked

    Does this work with both balanced and unbalanced signals?

    Yes. The three-pole socket configuration supports balanced mono (tip-ring-sleeve wired as positive, negative, ground) and unbalanced stereo (tip-ring-sleeve wired as left, right, ground). The coupler does not alter the signal, so the cable's own wiring determines whether the signal is balanced or stereo.

    Will it fit mono 6.3mm jacks?

    A two-pole mono 6.3mm jack plug will physically insert into the coupler and make contact with tip and sleeve, but the ring connection will be unused. For mono-to-mono extension, a dedicated mono coupler avoids unused contacts, though this stereo version will function.

    What's the maximum cable length I can extend to?

    Practical limits depend on the cable type and signal level. For line-level balanced signals, total cable runs of 50-100m are common without noticeable degradation. For instrument-level unbalanced signals (guitars, bass), runs above 10m may pick up noise or lose high frequencies depending on cable capacitance. The coupler itself does not degrade the signal, but longer total cable lengths increase susceptibility to interference and capacitive loss.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.