Sennheiser
Sennheiser ivycay Headphone Adapter Cable 1/4" to 1/8" Gold-Plated
★★★★★
A gold-plated 1/4"-to-3.5mm adapter cable that preserves signal integrity when connecting full-size headphones to portable devices.
$16.89*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.
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Overview
Key Features
Genuine SENNHEISER Cable Adapter Female 1/4" (6.3mm) to Male 1/8" (3.5mm) mini plug. (The adapter is un-marked but made by Sennheiser).
The adapter cable converts a large Headphone Stereo plug 1/4" (6.3mm) to a small 1/8" (3.5mm) Male mini-plug. Total length including adapters: 9" (230mm).
The adapter is designed with high quality components and gold-plated plugs for no degradation of the audio signal.
Durable design with flexible strain relief eliminates risk of damaging audio components. The extra cable length gives nice flexibility.
The adapter is compatible with all Headphones with large 1/4" (6.3mm) plug; like SENNHEISER HD-series (HD518, HD555, HD558, HD595, HD598, HD650, HD700, HD800), AKG, Audio-Technica, Beyerdynamic, GRADO, SONY, HiFiMAN and others.
Specifications
Brand
Sennheiser
Input Connector
Female 1/4" (6.3mm) Stereo
Output Connector
Male 1/8" (3.5mm) Stereo Mini-Plug
Total Length
9" (230mm)
Contact Material
Gold-Plated
Signal Type
Unbalanced Stereo (TRS)
Compatibility
All headphones with standard 1/4" stereo plug
Pros & Cons
👍 Pros
- Gold-plated connectors on both ends maintain low contact resistance and resist corrosion, preserving signal quality over years of use.
- The 9-inch cable length reduces mechanical stress on device headphone jacks compared to rigid plug adapters, protecting portable gear from port damage.
- Flexible strain relief at both terminations prevents internal wire fatigue at the most failure-prone points.
- Broad compatibility with any standard 1/4" stereo headphone plug regardless of brand.
👎 Cons
- At 9 inches, the cable adds noticeable length to your headphone connection — less clean than a compact rigid adapter for stationary desktop setups.
- Female-to-male configuration only — does not work for adapting 3.5mm headphones to 6.3mm equipment.
- No locking mechanism to prevent accidental disconnection from the headphone plug during use.
- Unbalanced stereo only — not suitable for balanced headphone connections that some audiophile DACs and amplifiers support.
Frequently Asked Questions
What exactly does this adapter convert?
It accepts a male 1/4" (6.3mm) headphone plug and outputs to a male 3.5mm mini-plug — allowing you to connect full-size headphones with a 6.3mm jack to any device with a standard 3.5mm headphone output.
Will this introduce any signal degradation or added noise?
The gold-plated contacts resist oxidation and maintain low contact resistance, so there is no measurable signal degradation. The 9-inch cable length is short enough to avoid any meaningful impedance addition to the signal path.
Is this compatible with headphones other than Sennheiser models?
Yes — it works with any headphone that uses a standard 1/4" (6.3mm) stereo plug, including models from AKG, Audio-Technica, Beyerdynamic, Grado, Sony, and HiFiMAN.
Why use a cable adapter instead of a rigid plug adapter?
The 9-inch flexible cable eliminates the mechanical stress that rigid adapters place on the 3.5mm jack of your device — particularly important for phones, laptops, and portable DACs where a heavy headphone plus rigid adapter can damage the port over time.
Does this carry a balanced signal?
No — this is a standard TRS stereo adapter. It converts unbalanced stereo signals only, which is the standard for consumer headphone connections on both the 6.3mm and 3.5mm side.
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