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APOS CaspianImage © Amazon

APOS Caspian

64/ 100
Good
HearWiki score

Priced about right

$500
typical price, USD
Discontinuedupdated
Manufacturer pageBuy now onAmazon

At a glance

Brand
APOS
Type
Over-Ear
Fit
-
Connection
-
Noise cancelling
-
Released
2021

Score breakdowngood overall

Sound7.8

The HearWiki takeAI-condensed

The APOS Caspian is a premium open-back over-ear headphone with a lively, bass-forward signature that prioritizes enjoyment over neutrality. Its 50mm dynamic driver and high sensitivity make it easy to drive from a variety of sources, while the comfortable build and detachable cable support long listening sessions. The tuning delivers strong low-end impact and a non-fatiguing character, though it comes with some compromises in vocal presence and treble sparkle.

What works

  • Robust and premium build quality
  • Punchy, well-defined bass response
  • High sensitivity makes it easy to drive
  • Comfortable for extended listening
  • Detachable cable for convenience

What doesn't

  • Vocals can sound recessed
  • Limited treble extension
  • Tuning is far from neutral
  • Only includes a 6.35mm connector

Paraphrased from published reviews & specs - not an original hands-on test. Our AI disclosure.

Specifications

Audio - APOS Caspian
Driver50 mm dynamic
Driver typedynamic
Driver size50 mm
Drivers per side1
Frequency response5 Hz - 45 kHz
Impedance33 Ω
Sensitivity115 dB/mW

What the reviews said

6 source(s) feeding this product's score.

ecoustics.com

ecoustics reports that the Caspian uses a low-impedance, high-sensitivity design and is easy to drive, with measurements broadly matching the published specs. The review frames it as a capable open-back headphone with a premium build and tuning aimed at enjoyable listening rather than strict neutrality.

Read the full review

futureaudiophile.com

FutureAudiophile describes the Caspian as easy to drive, using a 50mm Kennerton driver with graphene coating and a replaceable mini-XLR cable. The review highlights its high sensitivity and user-friendly design, while presenting it as a premium open-back model.

Read the full review

homestudiobasics.com

Home Studio Basics characterizes the Caspian as a fun, fatigue-free headphone that is well suited to long listening sessions. The review emphasizes its bass tuning and comfort-focused design.

Read the full review

soundnews.net

SoundNews describes the Caspian as a headphone with strong build quality and a lively, bass-forward presentation. The review positions it as a fun, easy-to-drive model with a distinctive tuning rather than a neutral one.

Read the full review

theheadphonelist.com

The Headphone List praises the Caspian for its excellent bass impact, tightness, and non-fatiguing sound. It also notes some tradeoffs, especially recessed vocals and limited treble extension.

Read the full review

What YouTube reviewers say

Video reviews we found, each condensed to its verdict. They do feed the HearWiki score, at a measured weight below what a published written review carries.

The consensus

Mixedacross 6 videos

Reviewers agree the Apos Caspian is a well-built, easy-to-drive open-back headphone with a warm, bass-heavy sound signature that stands out from typical tuning.

Reviewers liked

  • Strong, impactful bass response
  • Excellent build quality and lightweight design
  • Easy to drive from any source without an amplifier

Reviewers flagged

  • Narrow or limited soundstage
  • Comfort issues such as shallow earpads or strong clamping force
  • Treble can be fatiguing or lack sparkle for some listeners
12:31

The FIRST Apos Headphone - The CASPIAN

Joshua Valour25.7K viewsOct 2021

The reviewer finds the Caspian to be a solid first effort from Apos, with strong bass and good build quality, but notes significant drawbacks in comfort, soundstage, and vocal performance, especially given the $500 price. He concludes it's a good but niche headphone best suited for bass-heavy music, not a universal recommendation.

34:39

🟥Apos Caspian _(Z Reviews)_

Z Reviews15.5K viewsNov 2021

The reviewer finds the Apos Caspian to be a unique and engaging headphone with a narrow but clear soundstage, solid bass, and a warm yet aggressive tuning. He appreciates the collaborative development with Kennerton and the adjustments made based on his feedback, though he notes it may not suit everyone due to its distinctive character and price. Overall, he enjoys it as a special listening experience, especially for those seeking something different from typical headphones.

22:45

Apos Caspian Review - Soundnews X Apos X Kennerton

Soundnews3.4K viewsAug 2021

The reviewer, who co-developed the Apos Caspian with Kennerton, presents it as a highly sensitive, easy-to-drive headphone with a warm, fun, and engaging sound signature. He praises its impactful bass, natural midrange, and fatigue-free treble, while noting a cozy rather than massive soundstage. He concludes it is one of the most enjoyable headphones he has tested in its price range, especially for those who want audiophile quality without a dedicated amplifier.

20:04

APOS Caspian Headphone Review - A Different Take

GadgetryTech3.3K viewsSep 2023

The reviewer finds the APOS Caspian to be a well-built, comfortable open-back headphone with a warm, bass-emphasized sound signature, though it differs from the manufacturer's stated tuning by having a more forward presence in the upper mids. It offers good value with its universal mini XLR connector and included accessories, but the sound may not suit those seeking a bright or airy presentation.

22:28

Apos Caspian Headphone Review - Groovy, baby!

Passion for Sound2.7K viewsNov 2021

The reviewer finds the Apos Caspian to be a fun, warm, and bass-heavy open-back headphone that deliberately deviates from the Harman target curve. While the strong 40-60 Hz bass boost makes it groovy and enjoyable, it can be slightly too much and inconsistent, and the treble is smooth but not sparkly. Overall, it's a well-made, comfortable headphone that offers a unique sound signature, but it's not for everyone.

23:52

Apos Audio Caspian - Tough & Balanced

No Theme Reviews2K viewsApr 2022

The reviewer finds the Caspian to be a rugged, well-built headphone with a warm, bass-heavy sound signature that is easy to drive, but notes several compromises in comfort and accessories, such as strong clamping force, lack of ear cup swivel, and a stiff cable with only a quarter-inch termination. Overall, it is a solid but not perfect product for its price.

Summaries are AI condensations of each video's own conclusion, not transcripts. Titles, thumbnails and view counts belong to their channels.

What owners say

A sample of buyer reviews, quoted as written. They aren't verified and they don't feed the HearWiki score - that comes from published reviews only.

Finally, a basier sound signature without muddy mids!

High build quality and amazing sound, but not for everyone. If you don t know what a Harman target is, you may want to look elsewhere. These headphones are neither neutral nor are they bass-heavy likeRead more

Cozy sound, but has treble peaks that destroy my ears

I bought these because I wanted something for long sessions of easy listening, which d give me lots of bass while sparing my treble-sensitive ears. It delivers, mostly, and with the right music IRead more

Tons of Bass and Lower Midbass, Vocals Appear Behind All Of That, No Treble Detail At All

The title says it all. I tried three different headphone amplifiers. Great bass, but vocals appear BEHIND the bass when on my HiFi or in my car that is not the case. The bass sounds like big speakers,Read more

No high frequencies at all!

This sounded so bad I suspect it was a defective sample. Praised for its low frequency prowess, it had that indeed, but there weren t any frequencies to be heard at all from the upper mid-range and above. Vocals were unintelligible.

via Amazon customer reviews

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Where it sits in our rankings

The data-driven guides this model qualifies for.