
KZ - Castor Pro (Harman Target with Improved Bass Version)
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Reddit Reviews:
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Based on 1 year's data from Jan 28, 2026 How it works
Liked most:
1632
60
"Literally couldn't think of any pair of IEMs + dongle dacs could sound as analytical as the C3P+ for around $70. ... detail is just sooo much better. The C3P+ is just leagues ahead the I5 in terms of detail and resolution. ... the C3P+ is actually the closest sounding one to really expensive iems or headphone that I have."
"Crazy good from the jump! ... When you factor in they're only $99 and go toe-to-toe with Bose QC Ultra at $299, this is the deal of the year!"
"Can't recommend them enough for the value, sound like $200 earphones."
463
156
"Back to back in my opinion they blow the airpods pro 2 out of the water in clarity, separation, and punch."
"Literally couldn't think of any pair of IEMs + dongle dacs could sound as analytical as the C3P+ for around $70. ... detail is just sooo much better. The C3P+ is just leagues ahead the I5 in terms of detail and resolution. ... the C3P+ is actually the closest sounding one to really expensive iems or headphone that I have."
"these have the deepest, cleanest and "tumpiest" bass out there."
64
26
"They have great bass for the price — going surprisingly deep without sounding bloated or boomy. Good punch. Songs that have midrange bass or cellos really shine here (ex. “The Curse” by Agnes Obel, “The Equaliser” by The Midnight)"
"The switch actually has quite a few influences. ... The Castor pro bass UUDD can bring out powerful bassheads, DDUU can bring out not too many low notes and enough high notes. ... The influence of the switch is actually easy to feel, and it works well. ... It usually plays a large role in making adjustments to be more neutral sound."
"just enough punchy bass to make gunfire and explosions sound right."
21
5
"The soundstage is wider than the bass version. ... This is something you wouldn't easily expect from an iem at this price point. ... super wide soundstage considering the price. ... Definitely one of the best choice for gaming."
"For gaming it's so good. ... The imaging and sound staging is kinda perfect for games."
"In terms of sound quality it's clearly superior in terms of staging and provides a richer, fuller experience."
19
4
"The switch actually has quite a few influences. ... The Castor pro bass UUDD can bring out powerful bassheads, DDUU can bring out not too many low notes and enough high notes. ... The influence of the switch is actually easy to feel, and it works well. ... It usually plays a large role in making adjustments to be more neutral sound."
"u can always have the advantage to tune the eq switches to reach a similar output like chu2 ... the whole reason 80% in r/iem like the castor is due to its soundstage and the ability to physically tune the switch ... the switches can be tuned according to ur preference, but most like the switches in 1234, up-up-down-down"
"the Castor pro bass edition with the 4 switches are AWESOME!!! ... the bass is just right(I love bass)"
Disliked most:
21
128
"The fit just doesn't feel right ... its heavy after an hour of use so who cares about battery life ... may as well get some over ears for comfort."
"I had the same problem and returned them."
"The Sony headphones did not fit properly ... I lost one pair"
92
42
"I don't feel any difference in bass"
"However, the sub-bass isn ’t particularly strong and can feel a bit sluggish when stacked against higher-end models, as the layering and separation in the low-end just aren ’t there, which can lead to a muddled presentation when a lot of instrument is going on in the mix."
"Unusable without hefty EQ (-10dB @ 185Hz). ... That spike at ~180Hz is real and ruins low-mid end completely. ... Any sound in (or passing trough) ~180Hz region has some strange tin can high pitched hollowness/echo. ... Bass guitars sound strange, drums sound strange, low vocals sound strange... Any background hum in music/movies/games sounds strange. ... It is also very hard to EQ out - spike is very high and in very narrow range. So you need good EQ software to apply a lot of negative EQ in very narrow range (used EQ APO+PEACE). ... Once EQ is applied these sound quite nice. Good low end, clean mids and nice highs. Without EQ they just sound wrong."
18
39
"supermix4 hurt my ears, too much treble for me ... I didn’t think the supermix 4 sounded much better, but the highs were much more aggressive. I played for 1/2 hour and was in pain."
"I found the SuperMix 4 too bright and fatiguing until I tamed it a bit with SpinFit W1s. ... (Otherwise, I could only listen to the Fall Out Boy discography for ~30 minutes. No such discomfort with my other IEMs.)"
"everything is just super high pitched n supermix and genuinely unusable just because of how nassally and unnatural it makes female voices sound. ... And after a few days I just realized how ear piercing and unnatural the supermix was and so that was kinda it, I didn't wanna use supermix for music anymore."
13
10
"There appears to be a massive dip in the upper mids low treble on the castor pro bass ."
"The lower notes are relatively high and the attenuation is fast. You may not feel the lower notes very much. Mid-tone is not noticeable, either."
"The Chu 2s are way better all around than the Castor Pro Bass - way clearer detail, midrange, treble"
6
28
"deuce awful for competitive gaming"
"Bass version - Best avoid with competitive games, especially Valorant. ... QDC and heavy as well."
"the castor pro (bass edition) for VALORANT is BULLSHIT."
OP...have you looked at Kiwi Ears Cadenza or KZ Castor Pro Bass Edition? Both respond well to EQ. Cadenza's bass is punchy and can satisfy your sub-bass rumble. The Castor Pro Bass Edition allows the user to tune the IEM with onboard switches. It's bassier than the Cadenzas in my opinion. I own both...and I get a deeper and more satisfying brain rattle from the Castor Pro Bass Edition from Angel by Massive Attack and Interlude by Yosi Horikawa. They both provide satisfying thumps to Billie Eilish's bad guy. Cadenzas lose a bit of mid treble detail (for me) on Starboy by The Weeknd. Both sets are currently under 35 USD (your pricing may vary)
I have read...KZ have had QC issues (guess that's the only caveat) My set works as expected. I am getting good bass response from BOTH my desktop dac/amp (Fiio K11 R2R) and off my iphone via a US edition apple dongle. Since you don't mind EQ... some of the planar IEMs out there do play well with EQ. Even the 1st gen stuff... they're not quite sub-35USD range...but they're not prohibitively expensive
I looked at the Artti T10 and the T10 Pro. I decided on the NiceHCK F1 Pro (it was on sale😂😂) Not disappointed at all. I have a set of planar cans...and I was curious about planars in an IEM. Am pleasantly surprised. Hope you get a good set of Castor Pro...I really like mine. The set comes with a tool and diagram for you to tinker with the tuning. Did some time rolling...and settled on DUNU SS tips. Lovely set indeed.
I WHOLE HEARTEDLY AGREE WITH YOUR POINTS: https://preview.redd.it/vwxf7i53neye1.jpeg?width=2377&format=pjpg&auto=webp&s=9aafdf70e38f01e9e6e88692e4c7f79caca103d8 This is MY collection...and I'm very early in the journey. I don't have the budget, knowledge or experience to blind buy a 500USD+ set of in ears that may or may not fit my ears or my preferences. While my journey doesn't completely fit OP's blueprint...I have/had the same thought process regarding purchasing IEMs. Not pictured are the Moondrop Chu 2 and 7Hz Sonus. I started with the Chu 2, 7Hz Zero 2 and Kiwi Ears Cadenza. From listening, watching and reading reviews...I was able to learn about all the terms, labels, and vocabulary to describe what I like or don't like. I threw money at the Wyvern Abyss...I mean...LOOK AT THEM😂. The Kz Castor Bass was a curiosity buy...want to hear if a set touting bass response was really that bassy. My next steps were the NiceHCK F1 Pros, Kiwi Ears Canta and the 7Hz Sonus. The F1 Pros and the Sonu were on sale at the time of purchase...good value and able to narrow things down more for myself. I knew I liked the planar sound...I have a set of open ear planar cans. The F1s felt disappointing (until I tip rolled) The Sonus was about much for my taste (in the mids) The Cantas were quite nice for me. By this point...I had a good grasp of what I was looking for and the direction (s) I want to go in. AFUL Performer 5+2 is currently my go-to...for all around listening. Sourced from R2R DAC lined out into a desktop tube amp. It's like a warm blanket on crisp bright and snowy winter day. I picked up the Hexa because I wanted to hear the hype...and yes...they definitely fulfill the hype and then some. I've EQed my IEMs... especially the planar. They can mimic the sound...but it's only a part of the equation. I now rotate through 3-4 sets at my desktop listening station. The cheapo ones all have 3.5mm out for around the house or for bed. If they break...ill decide if I want to replace. Tip rolling is a journey of itself. Some tips can dramatically change an IEM and rescue it from the bottom of the pile. My Planars now sport foam tips...easing off the treble was huge. Anyway...long post...if you got this far thanks for sticking with my diarrhea of words. TLDR: I agree with the OP
I vote Castor Pro Bass Edition out of that list. I own both the Castor Pro and the Zero 2. To me...the Castor Pro in UpUpDownDown setting...is a budget bass monster. The mids and treble aren't bad. I find the Zero 2 muddier in the mids...and treble is a bit dark. I needed to use some Divinius Wide Bores on the zero 2 to brighten things up. The Castor Pros (on narrow bores) still have some detail...while providing good sub-bass rumble mid bass hits
This post sounds like a cry for help...being sucked down the wonderful rabbit hole of IEMs 😂 Agree with the Castor Pro Bass Edition recommendation. Give those a go. Agree about wires being a pain...think strategically hiding wires under clothes help; also deciding which earphone when can be helpful as well. IF you can stomach spending upwards to 170usd (as of this post) there are really good IEM Bluetooth adapters that can work wirelessly. But at that price point Id just stick with the Airpod Pro 2s.
I have the Legato....they are definitely bassy. I use wide bore ear tips which allows the treble to come through. They're not muddy...but these aren't for details and shimmer. Great for hip hop, edm, brain rumbly sub-bass. The Castor Pro Bass Edition is definitely more muddy than the Legato. The mid bass is tighter on the Legato as well. Legato is not bad at it's price point...and probably even better if you can find them on sale (I did😉)
Out of the sets you've listed. I own(ed) The Cadenza and the 7Hz Zero 2. For a first IEM...I can say either one is a good choice. IEM shape and size between those two...the Cadenza is slightly more compact and contoured. The Zero 2 "looks" uncomfortable...but it was actually isn't. If you have concerned with it's angular look and you can't reliably return the product...perhaps stick with the Cadenza. I have had a Castor Pro Bass Edition (the one with switches) I was not a fan...as my unit had driver flex (hearing the driver flex when the IEM is being adjusted in ear due to lack of proper venting) Have since read about various QC issues mentioned...but most seem to be in the past. I choose not to purchase their IEMs...because there are many others to choose from😉 Last thing to mention...ear tips. Aside from the sound and IEM fitment...ear tips is a consideration as well. Most IEMs will come with an assortment of tips. Take your time going through ALL the tips the set comes with. Even to the point of mismatching sizes between left and right. Human anatomy is funny like that as we are NOT symmetrical😂😂 You will want to get a good (eartip) fit and seal into the ear canal. You will know if you're not properly fitted if the IEM sounds "tinny" or "there's no bass" Super*review has many helpful videos if you get deeper into IEMs. This one will be useful when your first set arrives: [https://youtu.be/ZcEzrA2SzbU](https://youtu.be/ZcEzrA2SzbU) He also has another regarding ear tips. I'll let you find that one...it's on the same channel.
>maybe Something More bassy could be a good pick. What would you have suggested if he had asked for something bassy? I have already used the Kz Castor Pro Bass Edition, but I'm looking to move on from it. Can you suggest iem below $70 to use for longer session music listening?
tell me you didn't buy them. don't listen to the other guy. i don't know what games you play but i play VALORANT and the castor pro (bass edition) for VALORANT is BULLSHIT. i originally bought them for music and they do pretty fine but
I have bass and non bass pro version and when I listen first time I got amazed by non bass version is more refined and clean than the bass version and I return my bass version and keep my harmen target version I don't feel any difference in bass
Let's simplify this... What you have is the KZ Castor Pro (Bass Enhanced Version). These in a nutshell are really a good IEM for a balanced and bass heavy experience, and are arguably better than TWS Bluetooth earbuds, you just need to set them up for success. What you need to bring them to life and wake 'em up inside... ✓ DAC/Amp combo (eg. KZ AM02). This will drive your Castor Pro across any device and there are EQ presets for bass, clarity, and gaming. ✓ Adjust all switches to UUUU or UUDD. These are essentially your manual stick shift for a novel iem with switches. Learn the gears avoid finding it and grinding it. ✓ Get new eartips. You aren't going to get a good seal to unleash all of its glory for sound profile with the stock eartips of KZ. It is crucial to upgrade this area and should be a priority. I suggest something with a narrow bore like the Penon Liqueur Orange or Black. After you have completed the 3 imperative objectives above... Report back here and tell us all if there is any difference. Bonus: You can try an EQ app to further tailor your sound should you choose.
Hey there... I do not have experience with KZ PR1 for gaming, however, below mentioned is a post I've made before highlighting a great KZ branded setup. KZ Castor Pro Silver (Balanced) KZ M2 Type C Cable with built in "EQ Tuner" For the above mentioned setup that is a great start in this hobby -- All in $15 to $20 depending on where you are geographically located in this beautiful world. Considering you're starting out, it will allow you to take a dive into the water without fear of drowning yourself into just 1 IEM blind buy etc... With the tuning switches and options KZ Castor Pro Silver provides and the preset EQ options of the M2 cable, this will give you an idea of what sound profile/signature you are most comfortable with -- And in turn, make a sound profile on "experiential knowledge" based purchase for a future set of IEMs. In my opinion -- For gaming, particularly FPS games -- They are punching above their price. Edit: Also get the DUNU SS Eartips (price varies from $2 for 1 pair or 3 pairs for $7) to enhance your sound experience with a tight seal on your IEM. If you've made it this far into my response, then please look into "IEM burn in time for KZ Castor Pro" as this will help set initial expectations for sound out of the box if you decide to go the KZ route.
I've got kz edx EDC prx castor pro improved bass and I'm getting the kz sagas what do u think about all of them?
KZ Castor Pro Enhanced Bass Version (for when you *really* don't want to break the bank)
If you end up choosing Castor, I recommend you get the Castor Pro for the same price. They fixed some shortcomings of the non-pro version.
I am using the Castor Pro Bass version (I just leave all switches up, UUUU)
With Castor Pro Bass and all switches up, I find the bass too overwhelming in games. I still prefer regular speakers for games even though I have quite a few open back headphones like Philips SHP9500 w/upgraded cool gel pads, Philips Fidelio X3 w/upgraded cool gel pads and Sennheiser HD599SE.
Cheap budget bass enhanced IEM would be KZ Castor Pro (Black color which is the bass enhanced version), it is quite popular. It has switches you can play around to fine tune.
Castor Pro (Black) is not bad, especially if you like bass music. The silver (Harman Target) version heard that it is not bad also... I think it is the only one in these 3 selection that have 2 x 10mm Dynamic Driver, the other 2 if I remember correctly is single dynamic driver.
Castor Pro have a girthy nozzle, might be too much for people with smaller ear canals.
Dunno about the other 3, but I like Castor Pro, it is a very enjoyable IEM for the price.
I’m actually a pretty big fan of kz so far. I have castor pro bass edition and kz zs10 pro, and so far I’m loving both of them. My mind was blown at the quality of both, especially for the price. I’ve only had both for a little over a month, but as of right now. I’m a fan 👍🏻
I have castor pro bass edition and love it, I’m somewhat new to the iem community as well. I’ve been switching between my castor pro and kz zs10 pro for the last coulple of weeks, love them both. Welcome aboard the iem train. 👍🏻
So I just ordered the Duonic a few days ago, should arrive in a week or two. I’ve been listening to the castor pro Bass enhanced version for a couple months now. It’s one of my favorite iem’s right now. You say duonic is pretty much superior, man I can’t wait to hear these. 👍🏻
Just started listening to the Duonic. IMO I’d say Duonic is definitely superior to the castor pro. Now castor pro is good, but I think Duonic has a wider soundstage and much more detail than the castor pro.
Thanks for the review, I have the Castor Bass and Harman and Castor Pro Bass versions, maybe I'll buy the Castor Pro Harman someday
Thanks for the review, I have the Castor Bass and Harman and Castor Pro Bass versions, maybe I'll buy the Castor Pro Harman someday
Thanks for the review, I have the Castor Bass and Harman and Castor Pro Bass versions, maybe I'll buy the Castor Pro Harman someday
Do you think it's worth buying Harman Castor Pro? It's on sale now 🤔
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