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DALI IO-4

Finish: Chalk White

STEREONET

WHAT HI-FI?

DALI IO-4

Wireless Hi-Fi headphones with a class-leading 60 hour battery life. Designed for maximum comfort and durability with natural, transparent sound. Designed and engineered in Denmark.

Authentic DALI Sound

DALI IO headphones are built on a class-leading 50 mm paper fibre cone for the most natural, transparent and authentic DALI sound.

Battery Life (60 hrs)

The IO-4 offers a class-leading 60 hour battery life that lets you go for weeks between charges – and recharges in just 2.5 hours.

Comfort & Durability

DALI IO ear pads are made from memory foam that shapes to the head for maximum comfort, fit and seal.

Connectivity

DALI IO headphones support Bluetooth® aptX, aptX HD and Apple AAC. For best results, use the included USB-C or mini-jack connectors.

Finish: Chalk White

Wireless Hi-Fi headphones with a class-leading 60 hour battery life. Designed for maximum comfort and durability with natural, transparent sound. Designed and engineered in Denmark.

ENGINEERED IN DENMARK

Highest standards of design, durability, comfort and sound quality

DALI IO headphones are a true DALI product, designed and engineered to the same fundamental principles and attention to detail as any other DALI loudspeaker. Every component meets the highest standards of design, durability, comfort, functionality and - most importantly - sound quality. With the DALI IO headphone series, we had a clear goal: they should deliver the best possible sound quality and be extremely comfortable to wear – even when used for hours on end.

AUTHENTIC SOUND

Benefitting from decades of sound design

With DALI IO headphones, you benefit from four decades of world-class Hi-Fi loudspeaker design. With the IO-4, our goal was to create the most natural and authentic sound possible and to reproduce music exactly as the artist intended it. We believe we succeeded.

50 MM DRIVER

Reproducing the smallest details with crystal clear clarity

We understand the importance of a high-performance driver. That's why the IO-4 features a high quality, custom designed driver with a large 50 mm diaphragm and optimised neodymium magnet system. The result is low distortion, minimal colouration and accurate dynamics throughout the entire frequency range.

COMFORT AND DESIGN

Ergonomically optimised for a comfortable fit

The stylish IO-4 headphones have been ergonomically optimised and designed with the right amount of adjustability to ensure a comfortable fit. Also, the earpads are made from memory foam that naturally shape to the head for extended use, while creating the best possible seal for a consistent acoustic performance.

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EXTENDED BATTERY LIFE

Up to 60 hours playback

Our advanced lithium-ion battery lets you listen to your favourite music nonstop for up to an incredible 60 hours. With battery level LEDs and voice prompt, you always know how much charge is left. And if your IO-4 runs dry, continue in passive 'off' mode to keep the music alive.

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REVIEWS & AWARDS

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"For its first toe-dip into the headphone market, DALI has produced an impressive pair of headphones" that was the conclusion of British magazine StereoNet after reviewing the DALI IO-4, awarding it 5 stars and an Applause Award."

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"There is no doubt that Dali has crafted a fine set of headphones in the IO-4s, boasting impressive stamina and comfort [...] If you're looking for a pair of headphones that offers a more refined effortless, spacious sound and handles midrange detail and vocals particularly well, you have found it."

Read full review

"For its first toe-dip into the headphone market, DALI has produced an impressive pair of headphones" that was the conclusion of British magazine StereoNet after reviewing the DALI IO-4, awarding it 5 stars and an Applause Award."

Read full review

DOWNLOADS

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Brochure

DALI IO brochure

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Manual EN

Product user manual in English

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White paper

Technical product paper

Firmware Update

Instructions for updating the firmware in your DALI IO's.

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SPECIFICATIONS

Headphone Principle

Closed back circumaural (over ear)

Full Range Driver

50 mm free-edge paper fibre cone

Frequency Range (+/-3 dB) [Hz]

10 - 20,000

Battery Playback Time

Up to 60 hours

Battery Charge Time

2 ½ hours

Nominal Impedance [ohms]

25

Maximum SPL [dB]

100

Connection Input

Bluetooth® 5.0, 3.5 mm mini-jack, USB-C

Wireless Input(s)

Bluetooth® 5.0, AAC, aptX, aptX HD

FAQ

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Both headphones have been tuned almost identically, so you won't hear any noticeable difference.
This can happen if the power button get toggled ON/OFF/ON too quickly. Try turn the headphone off( listen to the voice saying "power off", and restart the headphone
The Battery level management has some tollerance, so even a fully charged battery may indicate 90%. you shouldnt worry.
Windows 10 default Bluetooth® setting is ”Allow the computer to turn off this device to save power”., please untick this setting.
Using headphones while wearing glasses, may introduce a leak not allowing the earpad to make a close seal around the head. A leak will result in reduced noice isolation , ANC and bass level. It depends on the individual design of the glasses frame whether a leak is introduced or not.
LDAC (SONY) is not currently supported by the Qualcomm BT chipset (apt-X), also LDAC is not supported by many devices

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