Kiwi Ears Atheia Review: 50mm DD + 14.5mm Planar Hybrid Headphones - In-Depth Analysis

This in-depth review dives into the Kiwi Ears Atheia headphones, a unique hybrid model featuring a 50mm dynamic driver and a 14.5mm planar driver. We examine the Atheia's build quality, comfort, and sound signature, providing a detailed analysis of its performance. The review explores the use of premium materials like walnut wood and aluminum alloy in its construction, assessing its lightweight yet sturdy design. We also compare its sound profile to competitors within a similar price bracket, highlighting both its strengths and weaknesses.The Atheia's impressive low-end response and balanced soundstage are examined, alongside areas where improvements could be made, particularly regarding clarity and overall detail. We will discuss the need for potential EQ adjustments to fully unlock its sonic potential and consider whether the Atheia justifies its price point against competing models. Ultimately, this review aims to provide a comprehensive understanding of the Kiwi Ears Atheia, assisting potential buyers in making an informed decision.

Pros And Cons

Kizu Hybrid Driver Model A
  • Uses high-quality walnut for wooden earcups
  • Aluminum alloy bracket makes it sturdy
  • Good cable lock to prevent it from falling out
  • Well-covered and comfortable fit (for some head sizes)
  • Quieter surrounding sounds than the Sig model, less sound leakage
  • Good texture of low range
  • Price is considered expensive (50,000 yen)
  • Headband adjustment could be better, limited stretch
  • Boomy, solid sound, but wide-range sound not clear
  • Low range is very noticeable
  • Exterior finish not considered good
  • Needs EQ adjustment to achieve desired balance, valley in the midrange affecting clarity

Read more: EPZ P50 In-Ear Monitor Review: A Breakout Performer?

Unboxing and First Impressions

The Kiwi Ears Atheia arrived in a sleek package, exuding a premium feel. The headphones themselves have a unique design, featuring Jupiter ear cups made of walnut wood. While not overtly sophisticated, the craftsmanship is evident in the details—the subtly engraved logo and the secure, rotating cable connection. The aluminum alloy bracket adds to the overall sturdy build.

Image showing the cable connection mechanism and the aluminum alloy bracket.
Image showing the cable connection mechanism and the aluminum alloy bracket.

The weight is impressively light at 34.6g, which is almost negligible compared to similar models which weigh around 350g. Initial impressions suggest a well-built and comfortable set of headphones despite the relatively compact design. The ear cups allow for adjustable airflow.

A person demonstrating the adjustable headband of the headphones.
A person demonstrating the adjustable headband of the headphones.

Design and Build Quality

The Atheia's build quality is excellent. The use of high-quality materials like walnut wood and aluminum alloy is immediately apparent. The headband adjustment mechanism, while limited in its range, offers sufficient flexibility for most head sizes. The closed-back design effectively minimizes sound leakage.

Close-up shot of the headphone's wood earcups, showcasing the material's texture.
Close-up shot of the headphone's wood earcups, showcasing the material's texture.

The overall design is understated yet elegant. It's clear that attention to detail was prioritized during the manufacturing process, creating a headphone that feels premium and durable. The subtle design choices make it a visually appealing product as well.

Image of the headphone's metal bracket, emphasizing its sturdy construction.
Image of the headphone's metal bracket, emphasizing its sturdy construction.

Sound Quality and Comparison

The Kiwi Ears Atheia boasts a hybrid driver configuration: a 50mm dynamic driver and a custom-designed 14.5mm planar driver. This combination aims to deliver detailed sound with minimal distortion, promising improved texture and speed. The sound signature is described as having a boomy and solid base, though the reviewer notes that the wide-range clarity could be improved.

Image displaying the headphone's driver specifications.
Image displaying the headphone's driver specifications.

Comparisons were made against several other headphones in a similar price range, including the Sila P2PRO, the Answer, and the Ruan. The Atheia's low-end is described as more voluminous, but not fluffy. The mid-range is prominent, but the reviewer found that the clarity could benefit from EQ adjustment. The reviewer found the Planar Driver Sapphire Vibration P2 PRO to be overwhelmingly superior. Overall, the Atheia's sound is described as balanced but requiring EQ adjustments to optimize its potential.

Screenshot showing the comparison models being used in the review.
Screenshot showing the comparison models being used in the review.

Conclusion and Verdict

The Kiwi Ears Atheia offers a premium build quality and comfortable fit. However, its sound signature, while balanced, might require EQ adjustments to reach its full potential. The low-end is impressive, but the clarity could be improved. The reviewer pointed out that while the design is visually appealing, certain aspects of the sound require tweaking to achieve the desired results.

While the headphones are not without merit, the reviewer ultimately suggests exploring other options, like the Arca K240, especially considering the relatively high price point. The Atheia's performance is not necessarily bad, but it does not surpass other models in its price range.