iFi Headphone Adapter 2.5mm to 4.4mm

The iFi Headphone Adapter 2.5mm to 4.4mm makes it simple to use headphones with a 2.5mm plug on modern gear that’s moved to a 4.4mm balanced output. If your favourite headphones won’t fit your new DAC/amp’s 4.4mm jack, this compact converter solves the mismatch instantly—no re-terminating, no cable swapping. Built to be strong and robust, it’s an easy, reliable way to keep your balanced listening setup flexible at home or on the go.

What It's Good At:

• Lets 2.5mm headphones work with 4.4mm balanced outputs for broader device compatibility
• Fast, plug-and-play solution—no tools, no permanent modifications
• Strong, robust build designed for repeat daily use
• Keeps your setup compact and travel-friendly thanks to its small footprint
• Ideal for switching between multiple balanced sources without changing headphone cables
• A simple upgrade path when moving from 2.5mm to 4.4mm balanced gear

iFi Headphone Adapter 2.5mm to 4.4mm Full Specifications:

• Type: Headphone adapter (2.5mm to 4.4mm)
• Dimensions: 44 x 24 x 11 mm (1.7" x 0.9" x 0.4")
• Weight: 6.3 g (0.2 oz)
• Warranty period: 12 months

iFi Headphone Adapter 2.5mm to 4.4mm Q&A:

What does the iFi 2.5mm to 4.4mm Headphone Adapter do?

It converts the fit of compatible 2.5mm headphones so they can connect to devices that use a 4.4mm balanced output.

When would I need a 2.5mm to 4.4mm adapter?

You’ll want this adapter if your headphones have a 2.5mm plug but your DAC/amp or player provides a 4.4mm balanced headphone output.

Is this a permanent modification to my headphones or cable?

No—this is a plug-in adapter, so you can connect and remove it anytime without changing your headphones.

Is the adapter designed for frequent use?

Yes. iFi describes it as strong and robust, making it well-suited for regular plugging and unplugging.

Is it easy to carry for portable listening setups?

Yes. Its compact size and light weight make it a convenient add-on for travel or commuting rigs.

Will it help if my 2.5mm headphones “won’t fit” a 4.4mm output?

Exactly—that’s the main purpose: solving the physical jack mismatch between 2.5mm headphone plugs and 4.4mm balanced outputs.

Does it come with a warranty?

Yes, it includes a 12-month warranty period.

What are the physical dimensions of the adapter?

It measures 44 x 24 x 11 mm (1.7" x 0.9" x 0.4") and weighs 6.3 g (0.2 oz).