KZ

Castor (Harman Target with Improved Bass Version)

KZ Castor (Harman Target with Improved Bass Version)

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Overall

#81 in

IEMs

according to Reddit Icon Reddit

Sentiment score69% positive
49
10
12

Top Pros

Top Cons

Last updated: May 9, 2026

Reddit Reviews

Reddit IconIll-Yogurtcloset-622
6 months ago

Hey man, I has this set since a while, for me is my favorite bassy set under 20 USD, that peak at 8khz maybe looks scary but nah, I like that tuning, is bassy but with enough details, in fact, I prefer it to the QKZ X HBB, but yeah, the Castor Bass og maybe is a more well tuned set for me, but anyway, you are totally right "you are getting Rosefinch to fall back into your music"... Another bassy and budget set I recommend is the CCZ Aura and the CCZ Nocturne (Keephifi sells them) , being CCZ a subbrand of KBear you can expect similar characteristics, but not gonna lie, CCZ is doing its own thing, and it's very appealing So many thanks for this review brother, this set deserves its praise!

Reddit Iconrxxxxxxxrxxxxxx
6 months ago

I've owned the KZ Castor (Bass ver. non-Pro) *and I think based on most reviews, there's not much difference between the Pro and the non-Pro version.* I'd skip on that just because it doesn't fit some of your criteria like "small details, good precision, good vocals." I've also owned the Tangzu Wan'er 2, and my Tanchjim Bunny just arrived a few hours ago. I'd also pass on the Tangzu Wan'er 2 just because I personally think it doesn't have "good bass". While the vocals sounds good and clear, it's a bit too forward and sometimes shouty to my liking. I might be slightly bias with the Tanchjim Bunny (because it's a new purchase for me, and I haven't used it for a week) but this one is a really good set that I think would fit all of the things you were looking for. In the entry/budget range, I think this is the best budget one I've heard so far. If you decide on getting the Bunny, then get the DSP version btw. I just tried plugging in a 4.4mm cable + my Fiio KA13 DAC on it and I think it's just as good as getting the DSP cable. For like a few $$$ more, the DSP cable is worth it. Plus the Tanchjim app has been good so far.

5 months ago

Honestly I haven't tried the Tanchjim Bunny on any games yet. But if I'll compare it to my other budget sets like the KZ Castor Bass and QKZ x HBB, I'd say the Bunny would be better than those 2. Just because it has a more open stage, and imaging is better too. So FPS games would definitely benefit from it. In terms of Music, it depends. The KZ Castor Bass is bass-y, energetic and fun. The QKZ x HBB probably has the best bass quality, with relaxed mids & treble. The TangZu Wan'er 2 are vocals-focused, less bass, and a little shrill in the treble region. The Tanchjim Bunny is more balanced, open stage, I personally think it's the best "starting" IEM for everyone. For Movies, personally I'm more biased with my QKZ x HBB. That subwoofer-like sound is so satisfying in Hollywood, Action films. I've watched Top Gun: Maverick on my QKZ x HBB multiple times, and if you get a good ear seal on that IEM, it feels like you're inside your own personal private cinema. *Okay, I'm maybe over-exaggerating here but it really is "that" fun for my ears*. I'm keeping my QKZ x HBB only for that purpose now lol. But for other film genres, the Tanchjim Bunny would do better. Maybe the TangZu Wan'Er 2 for Dramas.

5 months ago

I think the bass is good in the Tanchjim Bunny. Just in terms of resolution it's pretty good. It doesn't strain, it doesn't sound muddy. It's definitely not a basshead IEM but for someone like me who enjoys bass-y IEMs, the bass on the Bunny is good enough for most of the genres (*Pop, EDM, OSTs, Classical*) I listen to. Never felt like I needed more bass on the Bunny (*maybe a tad bit more subbass?*). Compared to my KZ Castor Bass (non-Pro ver.) which is more "bass-y". But in terms of resolution, it's behind the Tanchjim Bunny.

3 months ago

Medyo protruded sa akin pero hindi naman madaling mahulog sa tenga ko. And yes may pagka bulky siya. But not as "bulky" as my Kinera Celest Wyvern Abyss. https://preview.redd.it/nzns444sn9kg1.jpeg?width=4096&format=pjpg&auto=webp&s=d5bd1630ae5c3a7e26350ea40ff6dcc47e3c0ca9 Actually hindi "fit" sa tenga ko yung Wan'er 2 compared to the Wyvern Abyss. Kahit mas malaki yung body shell ng Wyvern Abyss mas okay yung fit ng nozzle sa ear canal ko. Mas madaling makakuha ng magandang ear seal. Di tulad sa Wan'er 2, and the KZ Castors, na kailangan itulak ko ng maigi sa ear canal ko yung IEM. I also have to use a smaller size eartips to get a good seal.

Reddit Icongobolin-deez-nuts
6 months ago

As someone who PEQ's a lot- the Castor bass punch, specifically from Castor OG, can't be replicated with just EQ. You can boost the bass that is there but it will not be the same quality of bass. Zero has better sub-bass but the mid-bass is much less and even for sub-bass I prefer Aoshida E20 or turning up the bass on Yu Xuan Ji.

7 months ago

From that list Castor or Castor Pro but honestly I prefer Vader Balanced, Zenith, AM16, and ZS12 Pro X as my favorite KZ IEMs.

Reddit Iconjapanesejunkfood
3 months ago

This might be perfect for me, I really like bullet style IEMs, neutral "flat" tuning and i daily drive a Final E500 IEM. This particular IEM has significantly better resolution and less harsh than my previous IEMs — OG KZ Castor and Truthear GATe. I should consider this soon, If i'm looking for an upgrade from the Final E500 technical wise (better resolution, imaging and bass response). My only cons with Final E500 is when played with songs that have boomy bass, the low end distorts and its non removable cable so there's a limit with customization. Other than that, Final E500 is almost the perfect IEM for me without breaking the bank. Anyways, this IEM you reviewed might be a tad upgrade from my Final E500, I'll look more into it

6 months ago

I have the KZ Castor harman it’s okay overall a little flatish and bass is pretty absent base on my experience using it. You get less accessories when you buy it. I dont own the Tachjim bunny but i saw the accessories it includes, it seems pretty much a good pick over the castor for the value imo

5 months ago

The Jm6 is pretty good with most IEMs, I cant really recommend which IEM cause it depends on your taste in sound signature. Well if i had to suggest something, for me i would put the Castor out of the list just for its lack of accessories upon unboxing it. You would be underwhelmed since it only gives u, 3 pairs of eartips to try, a pin to adjust the tuning sound and IEM themselves.

Reddit Iconsaadahmad7698
6 months ago

i have tested these 3 specifically for gaming castor harman (4k) castor pro harman(5k) truthear crinacle blue2(23k) i was honestly impressesd by the truthear at how good the soundstage and how close it is to high end stuff, castor pro are not far behind and very good budget option i tested mainly on valorant, apex legends and BF6, so yeah

Reddit IconAcceptable_Hall684
3 months ago

Go with kz castor pro improved bass edition. Bomb at this price.

Reddit IconAcustomerme13
3 months ago

he wants a quality bass kbear rosefefinch and QKZ X HBB bass have more volume but not a good quality bass castor pro have better quality bass than those 2

3 months ago

i didnt say he needs to get to 100$ im just saying if for him if castor pro bass sucks the other 2 suck even more they have bass volume but not a quality bass he already complain about the bass quality of castor which is better than those 2 i would prob recommend him kz saga

Reddit IconAdventurous-Pea-5525
7 months ago

just got kz castor bass version yesterday and the left sounded weaker than the right, so I'm returning them. They probably do have a quality issue (which I dont blame since its so cheap)

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