Koss UR40 Collapsible Over-Ear Headphones: Legendary Koss Sound in a Lightweight, Portable Package
Published on Dec. 19, 2023, 7:41 a.m.
For over 60 years, Koss has been creating high-fidelity audio equipment that brings listeners closer to the music. The Koss UR40 embodies that commitment to accurate sound reproduction in a lightweight and portable design. As a budget-friendly option, the UR40 punches far above its weight class when it comes to sound quality. Let’s take a closer look at why these headphones belong in every music lover’s collection.
The Koss 155524 UR40 Collapsible Over-Ear Headphones is an over-ear wired headphone model with a foldable design for portability and convenience. Weighing in at just 0.19 kg, the Koss 155524 UR40 Collapsible Over-Ear Headphones is incredibly lightweight while still providing a comfortable fit thanks to its soft leatherette ear cushions. The open-back design paired with rare-earth magnets and titanium-coated drivers gives the Koss 155524 UR40 Collapsible Over-Ear Headphones an exceptionally accurate and balanced sound across its wide 15Hz - 22kHz frequency response range. For its low price point, the Koss 155524 UR40 Collapsible Over-Ear Headphones delivers a remarkably immersive and lively listening experience.
- Lightweight open-back design
- Foldable for portability
- Titanium-coated drivers
- Wide 15Hz - 22kHz frequency response
- Rare-earth magnets for accuracy
- Oxygen-free copper voice coils
Comfort and Design
Weighing in at just 0.19 kg, the Koss 155524 UR40 Collapsible Over-Ear Headphones is one of the lightest over-ear headphones on the market. The soft leatherette ear cushions are comfortable without squeezing too tight. The open-back design allows your ears to breathe and prevents heat buildup during longer listening sessions. The headband is made of an airy mesh material that evenly distributes weight across your head. Since the Koss 155524 UR40 Collapsible Over-Ear Headphones is so lightweight and comfortable, you can easily wear it for hours without fatigue. When not in use, the headphones fold up into a compact size for storage and portability.
Drivers Deliver Crystal Clear Audio
At the heart of the Koss 155524 UR40 Collapsible Over-Ear Headphones’s incredible audio are high-performance titanium-coated drivers. These 40mm drivers feature a four-magnet neodymium structure for accuracy across the entire frequency range. Oxygen-free copper voice coils optimize signal transfer, while the titanium coating on the diaphragms adds rigidity to minimize distortion. This advanced driver system produces sparkling highs and deep, punchy bass for an immersive listening experience.
Cushions Create a Comfortable Seal
The Koss 155524 UR40 Collapsible Over-Ear Headphones are designed with leatherette cushioning that gently seals around the ears when worn. This closed-ear seal passively blocks out external noise while preventing audio leakage. The soft cushions prevent squeezing or discomfort, even during marathon listening sessions. Breathable mesh sling headbands disperse weight evenly across the top of the head, further enhancing the comfort.
Intuitive Wired Connectivity
Connecting the Koss 155524 UR40 Collapsible Over-Ear Headphones to devices is a breeze thanks to the universal 3.5mm plug with included 6.3mm adapter. Simply insert the plug into your smartphone, computer, or stereo system to start listening. The 4-foot cable gives you room to move while remaining tangle-resistant. Controls are built right into the cable for easy volume or track adjustments.
Legendary Koss Sound Quality
With a wide 15Hz-22kHz frequency range, the Koss 155524 UR40 Collapsible Over-Ear Headphones deliver incredibly balanced and nuanced audio. The open soundstage gives music a spacious, concert-like feel. From thumping bass to soaring vocals, the Koss 155524 UR40 Collapsible Over-Ear Headphones handles all genres with ease. Few headphones can match the Koss standard of accuracy in such an affordable package.
The Koss 155524 UR40 Collapsible Over-Ear Headphones are ideal for:
Listening to music at home - The open-back design creates an immersive listening experience, perfect for really getting into your music library.
Traveling and commuting - Weighing just 0.19 kg, the Koss 155524 UR40 Collapsible Over-Ear Headphones are ultra-portable. The foldable design lets you easily pack them in your bag.
Working in the office - With an open-back design that lets in ambient noise, the Koss 155524 UR40 Collapsible Over-Ear Headphones allows you to listen to music while still hearing coworkers if needed.
Audiophile listening - Serious music lovers will appreciate the Koss 155524 UR40 Collapsible Over-Ear Headphones’s accurate sound reproduction and wide frequency response.
User Feedback Summary
The Koss 155524 UR40 Collapsible Over-Ear Headphones have earned quite a following for their surprising sound quality at such an affordable price point. Perusing user reviews reveals the key strengths and weak points according to those who have experience using these budget-friendly cans.
Crystal Clear Sound
The most common praise for the Koss 155524 UR40 Collapsible Over-Ear Headphones focuses on their audio reproduction. Users describe the sound as balanced, clear, and surprisingly detailed for the low cost. The titanium-coated drivers and rare-earth magnets provide excellent clarity across the frequency spectrum from punchy bass to shimmering highs. For critical listening, the Koss 155524 UR40 Collapsible Over-Ear Headphones reproduces intricate details in songs that other budget headphones gloss over.
Extremely Comfortable Fit
Users gush over how lightweight and comfortable the Koss 155524 UR40 Collapsible Over-Ear Headphones feel to wear. Weighing just 0.19 kg, the flexible headband and ear cups are barely noticeable during use. Breathable materials prevent sweatiness or squeezing discomfort. The feather-light weight means the Koss 155524 UR40 Collapsible Over-Ear Headphones can be worn for hours without any fatigue or need to adjust. For portable use, the supreme comfort is a huge asset.
Budget Build Quality
The most consistent complaint about the Koss 155524 UR40 Collapsible Over-Ear Headphones focuses on the cheap-feeling build quality. While the materials keep weight down, the plastics feel fragile and prone to breakage if not handled with care. The thin audio cable in particular looks concerningly delicate to some users. However, if treated gently, the Koss 155524 UR40 Collapsible Over-Ear Headphones can hold up well thanks to the foldable collapsible design.
Immersive Open-Back Design
Fans of open-back headphones praise the Koss 155524 UR40 Collapsible Over-Ear Headphones’s spacious, airy audio presentation. The open design gives music a wider, more natural soundstage compared to closed-back models. Instruments seem to envelop the listener for an incredibly immersive experience. However, the openness allows in ambient noise and causes audio leakage.
Overall, if you want incredible Koss sound for an ultra-affordable price, the Koss 155524 UR40 Collapsible Over-Ear Headphones deliver impressively on that promise according to enthusiastic users. Just take care not to stress the fragile build quality.
- Legendary Koss sound in a budget package
- Lightweight and comfortable open-back design
- Foldable for maximum portability
- Titanium drivers provide clear, accurate sound
- Wide 15Hz - 22kHz frequency response
- Cable is on the shorter side
- Build quality not as durable as more expensive models
- Open-back allows in ambient noise
For its affordable price, the Koss 155524 UR40 Collapsible Over-Ear Headphones delivers premium sound in a lightweight and portable package. The rare combination of audiophile-quality sound, all-day comfort, and convenient portability make these headphones one of the best values on the market.
With legendary Koss sound quality and a comfortable, lightweight design, the Koss 155524 UR40 Collapsible Over-Ear Headphones punches far above its price class. The open-back soundstage provides an immersive listening experience, unveiling details in your music you’ve never heard before. For music listening on the go, the Koss 155524 UR40 Collapsible Over-Ear Headphones is a top choice, giving you hi-fi sound in a convenient portable package. Koss has designed the Koss 155524 UR40 Collapsible Over-Ear Headphones to bring listeners closer to the music, and it delivers impressively on that promise.
- Model Number: 155524
- Transducer: Titanium coated dynamic element
- Frequency Response: 15-22,000 Hz
- Impedance: 60 ohms
- Sensitivity: 102 dB SPL @ 1 mW
- Earpads: Leatherette
- Cable: 4 ft straight single-entry
- Plug: Gold-plated 3.5 mm
- Weight: 6 oz
What’s in the box
The Koss UR40 headphones include:
- UR40 headphone unit
- 4 ft straight cable
- 3.5mm plug with 6.3mm adapter
- Carrying pouch
- User manual and warranty documentation
How to Use
Using the Koss UR40 headphones is simple:
- Unfold the headband and adjust for your head size.
- Place the earcups over your ears so the padding forms a comfortable seal.
- Plug the 3.5mm cable into your audio source device.
- Play your music and enjoy the detailed open-back Koss sound!
- When finished, unplug the cable and fold the headphones inward to store in the carrying pouch.