2.5mm to 4.4mm
Plug 2.5mm TRRS headphones into a 4.4mm balanced source.
IBASSOADAPTERCustomer reviews (0)
iBasso CA04 2.5mm - 4.4mm adapter
Use 2.5mm headphones with 4.4mm.
A short adapter that converts 2.5mm balanced headphones to a 4.4mm balanced plug, using 5N copper with a silver-plated shield.
Regular price
£34.99
Unit price
Including VAT
Free next day UK deliveryFree UK delivery
Awaiting stock arrival date — order now to reserve one from the next delivery. Nothing to pay until it arrives.
THE AMP3 DIFFERENCE
Great gear. Even better service.
Order by 12 noon, Monday to Friday, for next day delivery. Destination and stock availability apply.
Not sure it’s your perfect match? Talk to an audio specialist
iBasso CA04 2.5mm - 4.4mm adapter
A little extra. A better pairing.
Better together.
Hand-picked pairings for this product. Choose one — we'll add them together.
MEET THE CA04
Use 2.5mm headphones with 4.4mm.
A short adapter that converts 2.5mm balanced headphones to a 4.4mm balanced plug, using 5N copper with a silver-plated shield.
Quality cable
5N mono crystal copper with a silver-plated shield.
Low profile
Ends in a right-angled plug.
Read the full description
The iBasso CA04 is a short adapter cable that lets you plug headphones with a 2.5mm balanced plug into a 4.4mm balanced output.
| Socket | 2.5mm TRRS balanced |
|---|---|
| Plug | 4.4mm TRRRS balanced, right-angled low-profile |
| Cable | 5N mono-crystal copper with silver-plated shield |
Good to know
- It keeps the connection balanced: it does not convert to single-ended.
In the box
- iBasso CA04 2.5mm Female to 4.4mm Male Adapter
THE FINER DETAILS
Built for
better listening.
Know what you’re choosing.
Find the right fit for your setup.
- Design
- Balanced adapter cable, 5N copper
- Connectors
- 2.5mm TRRS socket to 4.4mm plug (right-angled)
Specifications are based on manufacturer information and may change.
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How does free delivery work?
Every UK order has a free delivery option, and orders of £50 or more qualify for free next day delivery. Order by 12 noon, Monday to Friday, for next day delivery; orders placed after 12 noon, at the weekend or on a bank holiday are dispatched on the next working day. Stock availability and destination also affect arrival — check the options shown at checkout.
Pre-orders ship when stock arrives; the next day service starts after dispatch. Full delivery information
What if it’s not right for me?
Return within 14 days for any reason, or within 30 days if faulty, with free return postage. See our full Returns Policy for conditions and how to start a return.
Can you help me choose headphones?
Absolutely. Tell us what you listen to and the headphones you have — or the ones you’re considering — and we’ll help you find a suitable pairing. Chat with us
How do I request a Price Beat?
Use the Price Beat option on this page to send us the competing offer. The team will review your request; it isn’t an automatic discount. How Price Beat works
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