Eidolic 3.5mm universal extended-tip plug (fits Beyer, Final…)


Out of stock


Priced per plug.

New model:

The revised universal plugs with 5.5mm tip width (fitting Beyerdynamic perfectly) with a new gunmetal finish, these also fit our Meze 99 mod.  We still have limited stock of the old black/red model which does not fit the Meze mod and is a very tight fit on Beyers, at a discounted price.

Old model:

The Eidolic 3.5mm universal extended-tip plug is a complete solution for the versatile 3.5mm connections, featuring a simplified installation process, enhanced durability, superior ergonomics, and a unique appearance.  These connectors fit the following applications:

Dual Entry:

Focal Elear
Meze 99 Classics, when used with our easy to install mod

Beyerdynamic T1 and T5 2nd Generation*
Denon D7100 and D600
Velodyne VTrue
Mcintosh MHP1000
Sony MDR-Z7

Sony MDR-Z1R
Final Audio Pandora Hope, Sonorous, all of the “locking” 3.5mm jack headphones

Single Entry:

Focal Listen

Beats Studio and other Beats headphones
Philips Fidelio
Master & Dynamic
Or any headphone with a 3.5mm jack

*We have revised the Universal 3.5, its price remains the same – it is redesigned for a perfect fit with Beyer T1 and T5.  It is identical otherwise to the original Eidolic Universal 3.5mm plug.
The previous model’s extended tip is slightly wider and is a tighter fit for Beyerdynamic T1, but fits everything else normally.  The T1/T5 headphones’ earcup jacks are mounted in a plastic opening which can wear and get rough and lead to a tighter fit with these plugs than intended; the previous plugs are offered at a discount.  They will still fit most T1/T5 fine, but we recommend going with the new revision for T1/T5.

Design Elements:

Perfect size and shape.  The diverse dimensions of 3.5mm headphone jacks offer a unique challenge to the audio cable industry and anyone looking to build a high-performing cable.  There is really no good way to support custom cables for these headphones simultaneously until now.   We have a streamlined 9mm barrel diameter that will fit very compact jack layouts, but a newly-expanded 7mm rear opening and 7mm front opening will fit the vast majority of cables.  We have also shortened the barrel slightly to make the plugs less obtrusive.


The secret to this plug is an 11mm extension behind the plug shaft allows for precision fit into these headphones’ recessed openings, and will fit a variety of future headphones that use this connection standard.  Even headphone types that were impossible to support before – like Beats and Beyerdynamic T1 2nd Generation – with deep, slant-cut 3.5mm jacks – are no problem here.  This design is one-of-a-kind and is not based on any other designs, engineered specifically for a universal fit with countless new applications appearing with each new headphone release.  They are secure for flush sockets such as Master & Dynamic headphones, but also have the required length to fit obscured sockets such as Focal Spirit One.


Ideal installation conditions.  The solder contacts inside the plug are thoroughly insulated and properly spaced to allow effortless cable installation, without the risk of shorts or compromised insulation.  In this way, we avoid tiny, stacked contacts that are easy to short and difficult to maneuver around.  This design has been prototyped and tested over an extended period to ensure it goes the distance.  The barrel offers ample room inside and is treated to ensure its interior is nonconductive, and the plug avoids the use of magnetically charged materials wherever possible.


The best metallurgy for each design.  A high-conductivity, high strength combination of gold and brass is employed for this connector.  Superior plating thickness and complete plating of all plug surfaces set this connector apart.

Unique barrel aesthetics.  The Eidolic 3.5mm universal plug is incredibly light and compact due to the choice of materials, which also confer a near-indestructible exterior; the revised dimensions reduce weight slightly.  The new black anodized aluminum shell is textured with a proprietary process that yields a tough, matte finish that sparkles in the light.  A distinctive crimson Eidolic logo is screened and cured onto the upper area of the barrel.  Even the most abrasive conditions will not harm the exterior of these connectors.

Additional information

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