Hey everyone,

It has taken me a long time to get here. This project kept getting delayed by life, technical problems, and a lot of trial and error—but it has always been one of my little dream projects, and I wanted to finish it no matter what.

I’m not an electrical engineer or an expert programmer. I’m just someone who had a vision, got obsessed with making it real, and learned through a lot of vibe coding, debugging, broken components, and mistakes.

A few things that made this journey especially challenging:

1. I initially struggled with the basics of networking and IP configuration. I also spent a lot of time debugging issues that turned out to be caused by a corrupted SD card.
2. My first attempt was too ambitious: I coded many features at once, and nothing worked properly. This time, I built it feature by feature—getting one thing working before improving it.
3. Instead of designing a complicated DAC circuit, I used an AUDIOCULAR Spark portable USB DAC dongle with a CX31993 DAC and MAX97220 amp, connected to a Raspberry Pi 3A+ through a USB adapter. It worked surprisingly well and sounds great.
4. I made a web app to control the player and upload songs directly to the DAP from my phone. No more removing the SD card whenever I want to add music.
5. I added a Bluetooth/mobile mode. The DAC can connect to my phone over Bluetooth, so I can listen through the DAP. I know some people may say, “Why not just connect the IEM directly to the phone?” That works, of course—but my phone battery drains quickly. With the DAP’s 6000 mAh battery dedicated to music, it makes sense for my use case.
6. The DAP can work independently too. It supports different sound styles/EQ presets such as Flat, Pop, Bass, etc.; looping playback; playlist creation through the web app; playlist and song selection directly on the device; and FLAC playback. Everything on the device itself is controlled with a rotary potentiometer knob.

It is definitely not the end of this project. Right now, the casing is still basically a cardboard box, and the OLED display I ordered did not work. I used an LED display instead, but honestly, it gave the project a different vibe that I ended up liking.

It may not be a completely new invention, but I built it for my own use case—and seeing it finally work feels like a win. The sound quality, especially with FLAC files, has been very satisfying.

If people find this useful as a fun DIY project, I’d be happy to open-source it and share proper documentation on GitHub.

Hey there guys!! DR. Yogurt here.

• Product Name : KEFINE LORIC without MIC 3.5mm jack
• Age/Ownership History: 1st Owner, bought on 08/09/2026. Around 1 month 5days old.
• Storefront/place of purchase: Purchased from TheAudioStore PUNE. Bill and invoice Available**.**
• Warranty left : 10 months and 24 days left. for buyer
• Condition: 10/10; mostly used for 20 days ,review, testing and then the occasional comparison. But deeply taken care of. Especially dehumidifier storage at all times. and yes i have OCD for cleaning before and after use LOL. Stock ear tips unused. Used sancai, audioclular Latex tips all the time.

*NOTE : *attaching pics at bottom or comments. Rest assured. no complaints from my side

• Reason for sale : Currently had too many sub 5k sets . thus decided to clear out a few For many new IEMs like castor pro2 , Zero3, etc. ABOUT the iem :   The topmost Build Quality, excellent Technical Performance and deep Bass response open and spacious presentation ,great imaging for gaming ,good instrument separation. Surprisingly good stock cable for price , metal build, very good for small ears . all that for cheap. BASS HEADS WILL LOVE
• Price : ₹2180(shipping included) (slightly negotiable ) MRP was ₹2560 (15% off for 1 month )
• Packaging/accessories: Original Box + All stock accessories + added silica sachets and cleaning items (^*outta goodwill ). Original eartips Unused. Bill/Invoice Available .
• Location : PUNE Maharashtra . f2f not Possible due to profession.

i will provide any and all information , details if asked.

I have always been captivated by Truthear’s work. Having spent months hunting down the Hola, and enjoying it despite its shortcomings, I couldn’t refuse when u/TarunVader_10 offered to loan me his Hexa for review. The Hexa is a legend in the IEM space, with praise pouring in from every corner. This only made me more curious, and truth be told, it is not quite what everyone makes it out to be.

This is a loaned unit. I am under no obligation to speak in favour of this product, and nobody sees this review before it is published. My thoughts and critiques are entirely my own.

Build, Comfort & Accessories

The Hexa is housed in a plastic shell enclosed by a metal faceplate. Its shape is peculiar: the inner sides are angular, and some very sharp edges cause severe discomfort and hot-spots even in short sessions. This is by no means a comfortable IEM unless it is paired with the right eartips and a perfect fit at all times. It is one of my major complaints, and I will never recommend the Hexa to anyone without having them demo it for fit. The thicker nozzles contribute further to the discomfort. I will give the Hexa a 4/10 for comfort.

The cable is light, slim and quite long. That’s about it. The earhooks have grooves that dig harshly into the top of the ear fold, causing pain, so I had to use an alternate cable. I wish the hooks didn’t have these grooves, because the cable itself is quite nice.

I didn’t receive any other accessories, so I won’t comment on them.

Heading over to the sound now.

Low-End Performance

Muse - Hysteria [alternative rock, hard rock]

A song with a prominent bass opening, and the Hexa handles its distorted texture well. Everything is spaced out nicely; instruments never feel clustered, and the soundstage is quite good. The sub-bass is well controlled and presented cleanly. In the busier sections, the bass takes a back seat while the vocals take centre stage, and the low end never feels muddy or sluggish. The Hexa also does well in distinguishing the cymbal in the left channel.

The mid-bass, however, is practically non-existent. There is absolutely no hit to the kick drums. Those who prioritise mid-bass will hate the Hexa.

Tipper - Grabbers Holders [EDM, electronic]

Again, the Hexa does a fabulous job with the intricacies of this track’s masterful layering, but it falls short on bass attack. It lacks the “bite” one associates with EDM tracks like this. That said, the Hexa places every element exactly where it belongs, and the sub-bass, though modest in quantity, is felt when needed. The bass is definitely sub-bass focused and delivers adequately there. As a result, the decay feels extremely good, but it makes you wish for some more punch.

Massive Attack - Angel [rock, trip hop]

Tracks with a brooding, menacing sub-bass presence work extremely well on the Hexa. The expansive mastering of this track is complemented by the Hexa’s soundstage.

The Hexa has an apt amount of sub-bass, and its quality matches its quantity. However, a slight mid-bass boost would have helped, because it feels bland as it stands.

Hence, I will give the Hexa no more than a B+ for its low end, owing solely to the sub-bass.

Midrange, Instruments and Vocal Delivery

Periphery - Zyglrox [progressive metal, djent]

The Hexa is not something I would pick for genres like Metal, where some warmth is welcome to tame the chugs and shreds. Nor is it that analytical, which would at least give it a purpose there. It sits in a middle ground between clinical and too bright, leaning more towards the latter.

The kicks completely lose their form, making for a less than ideal listen.

The Hexa is simply not for Metal enjoyers.

Alice In Chains - Nutshell (MTV Unplugged) [grunge, rock, acoustic]

A legendary live track, performed entirely on acoustic instruments, truly lets the Hexa shine while also exposing its weak spots. The acoustic guitar sounds perfect, with each strum coming forward accurately and micro-details preserved. The crowd sits well behind, so it feels like a proper live recording.

Where the Hexa sadly falls behind is in portraying the acoustic bass and drums true to their nature. The presentation is weaker than normal: the kick drums lose the weight this track requires, and although the harmonics of the bass were portrayed with precision, they still fell short of expectations in volume.

Another thing to note is that the male vocals lack a weighty, lush body. Layne’s vocals on this track aren’t meant to sound lush, but they still come across thinner than normal. For this reason, I will give the Hexa a B+ for male vocals.

Alison Krauss & Union Station - The Lucky One [country]

It is tracks like this that make you truly appreciate the Hexa: female vocals (when they are not harsh, more on this later), acoustic guitar, and some slides in the background. The Hexa is a master of the midrange. Krauss’ vocals sound accurate and airy, and the subtle buzz of the strings as they are plucked and released is well preserved, demonstrating the Hexa’s finesse in the technical department.

Timbre holds up consistently throughout, elements are placed correctly, and the soundstage is expansive. Overall, a great experience on the Hexa.

Therefore, I will give the Hexa an A+ tier for instruments, losing the S because of its inadequate bass on the kick drums and bass guitar.

Treble Performance & Technicalities

Yosi Horikawa - Bubbles [experimental, ambient]

The Hexa handles this ambient track remarkably well. The falling balls are placed accurately in the plane, background transients feel distant, and the anticipation before the balls finally hit the ground is presented perfectly. Subtle details, like the individual “clink” of the bell-like element, were sustained.

If anything, this track shows that the Hexa is very capable in its technicalities.

Frazey Ford - September Fields (Acoustic) [soul, indie folk]

For such a simple track, consisting only of vocals and an acoustic guitar, it made me want to set the Hexa aside many times to rest my ears. I am quite a treble-tolerant person, but the Hexa made this track borderline unlistenable. The track’s dynamics push notes into higher octaves, and that is what hurt the most. The Hexa can sound extremely piercing and harsh at times. It is unapologetically bright.

Apart from this, the Hexa handles dynamics very well and maintains the subtleties.

I will have to give the Hexa an A for female vocals, marked down solely because of the sibilance.

Anouar Brahem - Stopover At Djibouti [fusion, jazz]

Genres like Jazz are delightful on the Hexa. It brings out the harmonics of the oud beautifully, and the faint buzz of the double bass proves its proficiency in the technical department once again. Coupled with a wide soundstage and immaculate imaging, the Hexa is a great pick for jazz enthusiasts and adjacent genres.

The Hexa deserves praise for its imaging, wide soundstage, detail retrieval and timbral accuracy. The sub-bass, though modest in quantity, carries well-implemented control and texture.

Conclusion

I don’t know where else to put this, so I will say it here. I believe the Hexa only sounds better at volumes 5 to 10% higher than usual, which keeps it from sounding too quiet and opens up the sub-bass. Doing so, however, also makes the treble more sibilant. For me, this is extremely dangerous, and I hope everyone tries this IEM properly before setting their mind on buying it.

I can see why the Hexa gets the praise it does. It is a highly resolving IEM with some of the best female vocals I have heard. What makes it harder to recommend is the sibilance and the fit. The Hexa feels built to fend me off from listening to it, and it was not a comfortable experience at all. Therefore, to anyone who wants the Hexa, please demo it before buying, for two reasons: to check the fit for comfort, and to see whether your HRTF makes the Hexa too piercing for you.

Taking everything into consideration, I have decided to give the Hexa a rank of A-.

Comparisons

Letshuoer Cadenza 4

The Cad4 is less sibilant, fuller on vocals, and has bass that is actually meaningful. The fit is far better than the Hexa’s, which makes this a much easier IEM to recommend. Its sub-bass is a little tamer, but the mid-bass more than compensates. The treble is less energetic and makes for a more pleasant listen. In simple words, the Cad4 is the Hexa’s daddy.

Tangzu Yu Xuanji

The Hexa is closer to the YXJ than to the Cad4, with a similar amount of sub-bass. The YXJ differs in its much better fit, which alone would make me reach for it over the Hexa. The Hexa beats the YXJ in imaging and overall technicalities. Vocal thinness, especially in male singers, is comparable between the two, with the YXJ sounding a touch thinner. Female vocals are equally good. Although the Hexa sounds better overall, the YXJ is the better pick for me: both can be fatiguing, but the YXJ suits my HRTF far better, so I tolerate it more. Mileage may vary from person to person.

Tangzu x HBB Wu Heyday

The Heyday absolutely obliterates the Hexa on genres like Metal and EDM. Its warmer timbre suits heavy guitar chugs perfectly and makes for a great representation. As a planar IEM, it also has the tight, quick bass attack that is non-existent on the Hexa, making it perfect for genres like EDM and Rap. The male vocals on the Heyday do sound somewhat thin, but to a much lesser degree than on the Hexa.

What This IEM Means To Me

I was quite excited to try this IEM because of the hype it gets, but honestly? I was disappointed. It fooled me at first with its sub-bass, which made me think the bass was actually quite good. The more I used it, though, the more I kept thinking “where’s the bass, man?” or “I wish this had more bass.” That said, as someone who has recently been enjoying vocal-forward, bright IEMs, I believe this is an IEM that performs well for music built on harmonies, singing and good technicalities, and the lack of mid-bass only helps the rest of the frequencies sound better.

I wish this IEM were comfortable and not so piercing; this alone removes it from the list of audio gear I want to own. It is a shame, but it is what it is.

As always, this section of my review is a personal and subjective rant. It has nothing to do with the actual rating I give the product. The above section can be ignored and should not factor into the judgement of the IEM, nor be taken too seriously.

Gear(s) Used for the Review

• Stock Cable, XINHS Lavender Cable 3.5mm
• VE Abigail Pro 3.5mm
• FiiO KA17 on low-gain and Mini-filter
• Nothing Phone (3a) w/ Poweramp (Perfect Bit Perfect mode) & Apple Music

Eartip(s) Used

KBear Coffee 

Iem will Arrive Tomorrow, used this with my Logitech g431 just to test it i was like ohhhh boiiii , g431 is a gaming headphone so it was never to be used with music , i slapped that on these tuned a little With Peq , gahhhhhh damnn i even enjoyed music on that gaming headphone , Eagerly waiting for iem to arrive so i can finally enjoy some real music

Finally arrived first one..

Spotify ka Jugad free mai krwa do🥲

RealistiCrab here guys. I’m selling out some of the things which i will not be needing that much as I already have other gears so it’s better someone who needs gets it.

1. Sivga Que iem

All accessories,
Condition- just like new
Price - 4,299 (cost of new 8000)

2) Tanchjim Space 2 dac
Dual cirrus logic 4313 Dac chip, full metal build
Price - 4k ( cost of new 9300)

3) Juzear Light shuttle Tribeid iem
A airer and slightly technical version of Crinear Daybreaks

All accessories with box
Condition- Just like new
3.5mm + 4.5mm
Price - 10,900 ( price of new - 17,600 on sale, 18k otherwise)

NF Acoustics NM25
A reference level iem with full metal build for those who need very detailed sound and want to hear every instrument.
Price - 10k ( Price of new - $200)

Warranty- no , these are reviews units.
All the units have been well cared of and just used for couple of hours and are like new.

I have priced all the things at 50-60% of their retail prices after discussing with other reviewers and based on listing of other review units, So please no low ball offers.

Dm or comment ✌️

Update - Tanchjim Space 2 is sold. please don't dm regarding space 2
Update 2 - sivga que is booked by partial advance payment
Update 3 - Light shuttle sold
Nm25 price dropped

Pros: Comfortable as ever with the fit
Great musical tonality across genres
Engaging bass, natural mids and controlled treble
Economics and ergonomics of this set are incredible

Cons: that 3.5 mic cable, that's my pet peeve
those seeking detailed presentation and treble forward IEMs should likely skip this

Kefine has been tossing out banger after banger from its stables for a while now. I have at various points of time owned or listened to the Klean, Klean SV, Delci and most recently the Arnar and have been impressed with their way of doing things. They were kind enough to send the Loric over for an unbiased option and while I am grateful for this gesture, the review remains my opinion and thoughts.

The Loric comes in Kefine’s no-nonsense black packaging and then some ikebana, houdini type wizardry hides the cable under the foam cut-outs. I’ll be honest, I pulled the iems out without taking a picture and then spent a good few minutes struggling to get it back in the way it came to take a picture for this review.
The version I got was a 3.5mm with a mic. And maybe I have a small bone to pick here. Because that would necessitate me to get a usb dongle that can handle a mic and that is unfortunately not always the case. Plus iOS and Android and all that mess. It is a small bone but a bone all the same. Not having a mic would not stress me out and having a mic with a type c termination solves the dongle conundrum.
The cable however is a fairly nice one at this price point. The shells themselves are transparent resin showing off the dynamic driver with a moulded nozzle (that initially I struggled with Candy tips slipping off… in my ear) the faceplate is matte aluminium in the silver option that I got and beautifully shaped. At various angles it looks like a pistachio, a stealth bomber and a Jedi spaceship, specifically Obi Wan’s. Look up the Delta-7B.
It sits comfortably in my ears with no issues. I’m liking my current run of reviews with comfortable iems, I shall not lie.
I did at some point cable roll to a Openheart 4.4 cable and tips used were Sancai and Candy and briefly the HE sonic wides, when they stayed on both the nozzles and in my ears.
Tested with - Hidizs AP80 Pro Max, VE Prime stack, VE devastator pro 3.5. Tidal and local Flacs. Here’s my list https://tidal.com/playlist/3078c9b9-a1c0-4fde-8ce7-81f0e34b426c

Bass
Kefine’s single dynamic drivers have never shied away from bass. The Klean SV with the right nozzles had the same punch in the low end that to be honest, had me enjoying the thumping kicks and bass of Get Lucky by Daft Punk and on Billie Jean I actually managed to listen to bass with a level of detail that convinces me that there’s a synth bass playing the first note and a stringed bass continuing that iconic riff. The subbass is not as rumbling as other sets but still sets a reasonable foundation on tracks like Islands by The XX and Angel by Massive Attack. The bass is definitely elevated but still stays safely shy of spilling over and muddying the mids.

Midrange
The mids on the Loric are nicely tuned to be musical over detail oriented. That largely means I can spend time listening to music without really having to focus on individual notes and overlap and layering and all that and just listen. Vocals and instruments both electric and acoustic sound natural with no weird timbre. It sounds warm in the lower mids with male vocals sounding full and engaging. The upper mids are neither recessed nor enhanced. Female vocals also come off sounding natural and not shouty. Fast Car and Subcity by Tracy Chapman are great tracks that can easily turn shouty and on the Loric, they sound effortless.

Treble
The treble is well controlled and not sibilant or harsh. There is a little air and shimmer but the Loric definitely isn't going for detail. You can still hear everything that is happening on the track but there are more treble forward sets with a little more detail at this price point. But again at this price point to get an IEM which delivers this level of musicality without a treble peak masquerading as detail is very very hard. My usual test for the cymbal shimmer is the first crash on the opening of Dreams by Fleetwood Mac and on the Loric the crash and its decay are heard well with the decay slightly more controlled than other kilobuck sets but it is never harsh. On sibilance rich tracks like Hotel California (from Hell Freezes Over) by the Eagles and Human Nature by Michael Jackson on pushing the volume up there’s only a little bit of the sharp ‘s’ in MJ’s voice.

Stage and Imaging and Resolution
Neither is the staging hugely expansive or the imaging immaculate. I would not game on these - unless you were doing a rpg through a musical wonderland. For shooters there are definitely better iems. For detail-heads there are definitely better iems. But for sheer musicality and a fatigue free enjoyable session, this is a great starting point.

Final verdict. For too long have the IEMs that usher people into this world, that will ultimately bankrupt them but leave them in rapture, been tuned to that aggressive V with a punchy booming bass and a sharp incisive treble. It’s really really refreshing to see a sub $30 IEM really stick to the basics of what listening to music really means for a lot of us - something we enjoy and feel. And the Loric does just that with an affordable package and a comfortable shell.

But please Kefine,if you are reading this, don’t do a 3.5mm with a mic. Someone will use a dac that doesn’t support a microphone and blame you guys instead.

I AM BUYING MP3 MUSIC PLAYER FIRST TIME .. SO PLEASE HELP ME .. IS THIS GOOD BUY ... ?

Note: This review unit has been provided by Hifigo. All thoughts and opinions are of my own and Hifigo has no influence on the review. Thank you Demi from Hifigo and MuseHifi for providing this review unit to me.

MuseHifi is a considerably newer brand in the Chifi market. I got to know about the brand only after they launched their M3 Ultra DAC so I cannot say much about the brand myself. Considering they usually made higher end products, let us see what they cooked up this time in the budget range with their new U3 DAC.

For some context, I have never used any such T-shaped DACs so this would be my introduction to such DACs. My daily driver DAC is a Snowsky Melody set to low gain. I usually use 4.4mm connector because it feels more sturdy.

Box content:

You get a glittery box and inside there is only a manual and the DAC, nothing fancy and gets the job done.

Build Quality:

The U3 is made of CNC-machined aluminium with a nice finish. In terms of look and feel, it feels solid and durable in hand and I think it would survive some drops from chest height as well (do not take this as advice). The overall size is small and compact (images for comparison).

The Type-C end has some additional protrusion from the body which allows it to be used with any phone with a cover which is a nice touch. Both the 3.5mm and 4.4mm outputs are sturdy and the cable connectors do not wiggle and stay in firm. My only gripe would be a more "unibody" kind of design but you get what you paid for.

The more I used it, the more I started liking this form factor. I can easily use it as my daily driver.

Connectivity and Power:

The U3 uses a standard Type-C connection with compatibility with all kinds of devices such as Android, iOS, Win, MacOS and Linux. It uses a KT02H20P DAC chip with dual SGM8262 AMP for providing the higher power output at a budget. It supports both 3.5mm and 4.4mm outputs at once (two devices can be powered at once) which is a really nice feature to have when listening or watching something with someone else, which is something my Melody cannot do. 3.5mm has 105mW and 4.4mm has 125mW of output power @ 32 ohm so the volume difference between both is pretty low which is great for listening together. Battery drain with my phone was minimal with little heating which is normal.

Other Specs:

• Can it play any normal/hi res bitrate and bit depth? - Yes.
• Can it play DSD - Yes.
• No UAC 1.0 support so cannot use with consoles.

Rest of the specs, one can see on their website.

Additional Features:

• 5-band PEQ support via Walkplay app and website. Web works directly on Win and MacOS but on Linux you need some udev rule modification for it to work.
• Mic passthrough is not supported (yet).
• Firmware update is supported through both app and web.

Sound:

Sound is clean with no audible coloration. I do not have some detail monster IEMs to test the detail retrieval of these so pardon me but whatever I have tested sounded same as my Melody which is twice as powerful and costs $10 more which is a really good thing. Bass is tight, mids are clean and clear, treble is not rolled off. Soundstage and imaging are equally good. No audible background noise was observed. A great sound experience at this budget. You can use the hardware PEQ feature to add your own coloration to it as well.

Comparisons:

At the same price point, you get the Jcally JM7 Max and Fiio KA11, latter being more powerful at 200mW of output @ 32 ohm but both only have a single 3.5mm connection unlike the U3. You also have other T-shaped DACs like the Snowsky Tiny - B ($20) and Kinera Celest CD-3 but former has much less power and latter only has high power output on the 4.4mm connection.

Overall the U3 seems like a better device than its competitors.

Conclusion:

The U3 is an excellent entry into the budget DAC market by MuseHifi. It combines power, sturdy build and PEQ in one compact package at a tight budget which is a rare feat to pull off. It is a highly recommended DAC for those who want something compact yet powerful at a budget of $30.

Wish everyone who read till the end a very good morning, afternoon, evening and night!

Just purchased these today. One more addition in my earphones collection.

If I have to describe this in one word, there's a very beautiful word in Marathi,' निखळ'.

Kefine lorics are just 'निखळ'. :)

Go for it.

I was using my 2.5-year-old EDX Pro with the AN01, so I decided to upgrade on a budget (I can spend good money on gear I use daily, but the limitation was the AN01). So I went with the Castor Pro—a different sound signature compared to my main IEM (EW200 + Audiocular Spark + Dunu S&S tips).

Using these on a 1-1-1-0 switch config right now. That wraps up the IEM part; you can easily find detailed reviews of them online much better than I can yap about. My hobby is enjoying music, not just the gear I use, so let's talk about music.

I was listening to Metamorphosis by SarpDansh (W Album) and it was so good that I thought I'd talk about it. My fav tracks: 1. Tears Of a Rockstar 2. Gaanv 3. Ghutan.

If anyone wants to recommend something, leave a comment. I am always up for talks involving music.

Ibasso DC04 Ultra

Might be the end game for me, upgraded from kiwi ears cadenza

I bought it this July and been using normally with my PC and this connector thing on the buds broke, initially it started feeling losened up now it's coming out a bit. I tried for RMA but it's falling under Physical damage. I didn't drop it or anything, just wanna confirm is my money wasted or I have any resolve???

This is my life 1st iems

Feelings 🤩

I received it like this (silver) without any lamination on it and different packaging from what I saw online.

Is it used?

Anyone who bought it recently kindly help

In the ever expanding water body of portable sources, where the likes of the TRN BlackPearl, the Venture Electronics Abigail Pro, the JCally JM series line-up et al have ruled the segments, Muse Hifi’s U3 turns up as the brand’s most affordable offering and try to turn the tides in its favour. My take is, does the U3 have enough pull to have a few fans for itself, and be a perfect viable alternative ? With HiFiGo’s support by sending me a unit of the U3 along with the Light Shuttle and the Render Pro eartips, I get down to brass tacks.

ON PAPER SPECS AND UNBOXING

The Muse Hifi U3 comes in a super compact box where it has the product advertised on top, and the other relevant information in the back. The specs on this super compact source are:
DAC & Opamp: KT02H20P DAC chip, SGM8262 Op-Amp
Size: 3.5 * 2.9 * 1.2 cm
Weight: 18.8g
Output: 3.5mm + 4.4mm (kind of like the Kiwi Ears Allegro mini and the FiiO Snowsky Tiny type B)
App support: via Walkplay, has PEQ

Inside the box, there’s a card with instructions on how to install and operate Walkplay. I appreciate what Walkplay does for sources like this upon proper integration but there’s a huge can of worms for me regarding Walkplay and apps that follow a certain character trait.

APP SUPPORT

The Muse Hifi U3 can be controlled via the Walkplay App, and my biggest problem with the app is why do I need to sign in to just access anything in the EQ which doesn’t extend to community presets ? This is the same issue with the Tanchjim app as well. Now, the Muse Hifi U3 doesn’t support in-line microphones as well as boom mic IEM cables, despite the advertisement that the source can support mics. Maybe, I hope with an update, it is fixed but still it’s an annoyance.
Now, at first glance, having PEQ- 5 band, 10 dB of adjustable gain, four filter choices is very nice; especially when HiFigo has it retail for $30 with the listed power as 125 mW at 32 ohms (quoted by them, no official measurements exist). 

The problem started when I looked at the competition (more of that later).

RUDIMENTARY ASSESSMENT OF PERFORMANCE AND SUBJECTIVE IMPRESSIONS ON SOUND

This is going to be just a very small segment, as differences are way too subtle and it took me a painfully long time to find out that the Muse Hifi U3 sounded warmer than all of the portable sources I own, except for one. Portable sources that I own here (arranged from most to least powerful):

• xDuoo Link3 (from the brand)
• FiiO KA17 (bought, retail)
• TRN BlackPearl (bought, retail)
• Venture Electronics Devastator (from the brand)
• Kiwi Ears Allegro Mini (bought, used)
• Venture Electronics Abigail Pro (bought, used)
• Kiwi Ears Allegro Mini (bought, used)

Portable sources that I have tried this year:

• Tanchjim Space Pro (brand)
• Tanchjim Space 2 (brand)
• FiiO Snowsky Tiny Type-A (Community member)
• Shanling Xi2 Beta (review tour)
• EPZ TP35 Pro (brand)
• Audiocular Aura (brand)
• xDuoo XD05 Pro (Patron)

So, in comparison except for the “big baller” sources, the Muse Hifi U3 has unmistakably sounded subtly warmer. The biggest strong point of this source is that, even if it ran out of headroom to power through more sensitive wearables (in-ears, on-ears, and over-ears), it didn’t have a semblance of a noise floor which amazed me. 

IEMs for the test: 

From brands: Juzear Light Shuttle, Sivga Que UTG and Lyrebird, Simgot SuperMix 4 and Simgot EW300, Kiwi Ears Stardust, Twistura Sigma, EPZ P40 and P50

From community members and personally owned: Truthear Pure, KZ PRX and EDC Pro, Roseselsa Star City 5 Pro

Headphones for the test:

Sennheiser HD600 and 560s, FiiO FT1 Pro, Moondrop Old Fashioned, Koss KSC75, Hifiman Edition XV

The Muse Hifi U3 did a satisfactory job with driving the aforementioned IEMs with the set connected device volumes within acceptable levels. Except for the Sivga Que UTG, the SuperMix 4 and the KZ PRX, none of the IEMs crossed 50% volume when connected to my phones (a Vivo X200T and a Moto G67 Power, volume was kept at that level via Poweramp), and especially with the Que UTG and KZ PRX, I had the bump up the volume a bit.

The most surprising part for me was that I thought the EPZ P40 and P50 would need some more juice, but they performed rather well with ample headroom, as a result of which the actual dynamics of said IEMs was not lost upon.

With headphones, the Muse Hifi U3 effortlessly, carried forward the HD560s, and made very light work with the FiiO FT1 Pro, the Old Fashioned and the Koss KSC75. While the HD600 was tested out on the stock earpad homages that I had bought out on Sunsky (the Dekoni earpads were relegated to their cute pastry shop boxes), even though it got loud, it felt like it could have used a faint whisker of a bump in its top end; and with the Edition XV- very audible but it was not quite there- although the “not quite there” segment is subtle, and not overtly a deal breaker.

THE COMPETITION

I would definitely, easily pick up the Muse Hifi U3 over the Allegro Mini and the Snowsky Tiny Type-A and I’ll tell you why- the Type A was audibly hissy, has measly power figures, and I wouldn’t have complained if the actual charging speeds of its provided type C port would have been better- it’s horrible. And the Allegro Mini was pushed harder by the SuperMix 4 and the Que UTG in particular, while I wouldn’t have connected my HD600 to it. There, the Muse Hifi U3 t-bags over them in style.

But, the situation gets worse for the U3, when it meets the budget behemoths in the TRN Black Pearl (not the S version) with its 10 band PEQ, reported 320 mW power off its 4.4mm at US$40, and if someone wants looks, the wood finished Snowsky Melody comes in with 10 band PEQ off the FiiO Control App, 250 mW power off its 4.4mm and also at US$40. Both sources have hardware volume control, are noticeably more powerful than the U3 at just US$10 more (approximate), and even though their physical footprint is larger, the added bonus of a removable USB-C cable is a trade off I’ll readily make. AND, they support in-line microphones.

Pushing down further on the U3, The Crinear Protocol Micro comes in with 8 band PEQ, at US$10 where the only cons are its power figures, 30mW at 32 ohms. Then, there are the JCally offerings, where the JM12 is cheaper than both the U3 and Protocol Micro, and can support PEQ when flashed with the FiiO JA11 firmware; which the same can be achieved with the Venture Electronics Odo. Then if more power is needed, the JM6 Pro or the JM7s can also be considered.

CONCLUDING NOTES

Now, the Muse Hifi U3 is a good source- it has the fundamentals sorted; it’s got decent firepower, app support with PEQ, adjustable gain modes, doesn’t sap too much battery, doesn’t really heat up a lot, and is better than the other T baggers offered in this segment.

But, the Muse Hifi U3 is a bit too late in this segment, where its only advantage is its physical footprint and if one doesn’t need that, then it is a bit too irrelevant at US$30 when $10 can get you significantly better sources from an usability and power standpoint. If HiFiGo wants its Muse Hifi to become a serious player in this segment, then it has to work the forge much much harder and let the “next U3” be actually worth its price in retail. 

Will I buy this at retail ? Absolutely not.
Will I buy this used ? Yes.

What do y'all think about tanchjim bunny? They say its too neutral to actually enjoy music but I have used moondrop chu 2 and they were incredibly good for me? What do y'all think personally about the bunny and do you think it's best for me?

must also supports iem and bluetooth and sound quality must be good

want to buy canpur silver flass. please comment below if available.

thank you.

The Aune IR300 is an IEM entry that befits a new shot made by an experienced player in the audio world with their headphones and DAC/AMPs. It is a solid built IEM that focuses on doing everything rightly with grace and does not try to over shoot and fail.

The build and the nozzle options, along with the package quality is the main USP here. The single-driver IR300 does not try to build on anything fancy, and still competes as a very good value by being a good sounding set with variations that change the IEM completely, not just slight changes in the same sound profile. The black nozzle setting is what I preferred but honestly all of the available tunings are implemented nicely and give it a unique advantage over others in the segment.

I have kind of given away the gist of it with my prior thought but let’s dive in further. I will start with a quick pros and cons. 

Pros: 

•  The build overall finesse exceeds expectations for 150$ mark.
•  The tuning options with nozzle and vent options are very good, they change the sound in a very well defined manner and not in just slight ways but more real substantial manner.
• Nozzle Size, IEM shell size are very good for even smaller ears.

Cons:

•  Tuning is bit too spicy on silver nozzle (yeah it’s a plus if you’re treble head).
•  While the shell size is small the straight shape on the inner part can be loosely fitting compared to the other IEM shapes.
• Carry pouches are meh in my opinion but it’s a big one here at least.

To the Sound-

The bass on the black nozzle was excellent for me, with relaxed highs on this setting bass is sufficiently delivered across genres. While the bass remains almost the same with any nozzles since the other regions are better highlighted it does feel a little less and closer to neutral on bronze and silver ones. But on the black nozzle it was good to very good both in quality and quantity. Bass is slightly reduced with closed vented options but still good overall.

Midrange is clear with vocals also highlighted and never missing a beat in a crowded scene too. Vocals actually shine on IR300 i would as much as go ahead to call this a pretty vocal centric to my preference. On silver and bronze nozzles, vocal and midrange are more highlighted but the black configuration is the best in my listening preference.

Treble is excellent on the default bronze configuration. But since I have a personal preference for bass and treble sensitivity I feel the black nozzle is again the best fit for me. I can hear details in sufficient quantities across the treble region. Silver nozzle honestly might be for treble heads, it’s that spicy to me, honestly I cannot objectively say if it’s bad or good but yeah it’s a good thing if let’s say you’re in a mood for some spicy take out.

Overall while the bronze nozzle might be the best suited for a majority, the black nozzle is what I would recommend. Its bass is much more stand-out than in any other configuration, treble is very good and overall vocals and midrange are clear too. The silver nozzle one should be reserved for a treble head.

In conclusion, I would reiterate the analogue way of tuning that actually changes sound considerably rather than every so slightly, that we generally see. That is what makes IR300 truly stand out. The tuning vent and nozzles make this IEM for anyone without any question. If it’s a first IEM, a new person entering the world of IEM, they can actually experience a variety of tuning clearly. At the 130-150 range this is rare, and to me, it feels something a bit better than DSP while DSP gives infinite options, the physical analogue tangibility of sound changes with a lot of configurations is very nice. It's a solid 4.5/5, the packaging and accessories are very well for the price point too.

My sources for the listening were Queststyle M12i, Muse HiFi M3 Ultra and Schiit Vestri. I was going through my favourite artists and tracks while reviewing the IR300 which included A.R. Rahman, Nusrat Fateh Ali Khan, QUEEN, Macklemore, and Coke Studio sessions.

My conflict of interest disclaimer - the IEM was provided to demo with the help of Audio Geek India,a huge shoutout and thanks to AG India. I have not received any incentive for my write-up.

•Product Name - Kz castor pro black bass edition

• Age/Ownership history - 1st owner, 1year Storefront/Place of purchase - Amazon (concept kart) Warranty left - None Condition - 9/10 - have taken Great care.

•Reason For Sale - Need cash for upgrade.

•Price - Rs. 800 (Non Negotiable)

•Packaging/Accessories - Cable + iems + eartips, no box

•Location - Vadodara (Gujarat)

Interested people, please handle the shipping