WTF Happened to these earphones (PT 1) Letshuoer DZ4

[@BadGuyGoodAudioReviews]

Shortbus video👉 kzbin.info/www/bejne/jHTSmXV5Z86codU

[@johnbenedictrodriguez3189]

Congrats on 50k subs! 🎉🎉🎉🎉

[@MichaelBruceTaos]

Thanks HBB!

[@BadGuyGoodAudioReviews]

@@MichaelBruceTaos Nah, you the man bro. Good ears you got. I hear it too📢

[@fifteenbongos]

Really big fan of this kind of informative video. First time hearing about most of the topics you went through, and the explanations were really clear. Good stuff.

[@norbzlopez7819]

I literally watched Micheal Bruce video on this iem yesterday. Hes a DIY modder, similar "johnrahs" lol. Respect to him.

[@Donsploitation]

The downfalls of only looking at graphs without listening to the final product. Glad you went into it and didn't pass as it was a pretty informative vid.

[@BadGuyGoodAudioReviews]

Thanks. I gotta do all the vids and not just the good ones. More learning in the fails (like life)

[@yarbles66]

I've worked in music for many years. I am even a one hit wonder - but my days as an artist were cut short by a physical disability. The point is, just shy of a few months of 25 years of working in what I love - I have absolutely zero idea nor interest in reading a graph. I can EQ a serious nightclub or DJ mixer (that's v v easy)... I am in no way an 'audiophile' because it seems for these people that equipment is the hobby before music. Isn't that like being into football, but you're more into boots & shin pads than the game? Music is the hobby & HBB is one of the few known guys to actually put significant emphasis on music. I don't want to sound mean, but I find it enormously difficulty to take anyone seriously about sound if they primarily listen to K Pop & aren't really music guys. Excuse my digression!

[@conroyscott2206]

​@@BadGuyGoodAudioReviewsso true brother. I hope manufacturers will learn that it's becoming increasingly harder to pull the wool over consumers eyes these days. Having said that, I was contemplating the DZ4 but after your and Michael Bruce's initial reviews, I've decided to save up until someone actually produces an iem with an actual functioning passive radiator. Also, congrats on the 50k Chris.

[@adamcanterbury]

Damn I learn so much watching your stuff…. TY

[@klepmod]

I admit to being a long time, non-participant in your content. I'm old and don't participate in social media. This video was incredibly informative. I've had a rudimentary understanding of passive radiators but your presentation is a next level education. Thank you!

[@dyckstefan]

These videos on drivers and tech are always super interesting! Lots of IEM little information on them (other than marketing).

[@BadGuyGoodAudioReviews]

Thanks./ I enjoy these. People can argue about preferences till the sun rises...endless. This kinda broken theory is much less open to interpretation. You don't add distortion to audio for no good reason.

[@mattdavis9601]

Congratulations on getting to 50k subscribers. This channel rocks.

[@PEANUTGALLERY81]

Wow, thanks Chris for the video. Stuffs like this is right within my budget and could make it to the Xmas shopping list, so I’m glad you made this. While criticism can be tough to swallow, true engineers would welcome it (of course, not sure if actual engineers were involved in this). Like you said in a prior video, some say, some company is going to do passive rads right and usher in a new era for bass on IEMs

[@baztim9470]

That's exactly why I follow you. Giving feedback to improve flaws and get a set to a good enjoyable experience

[@BrianGlaze]

That's how all reviews should be done 👌🏿

[@dya85621]

Thanks for your Review! Truly appreciate how you educate and explain Audio stuff to us in an easy understandable way while also making it interesting to Listen to.

[@BrianGlaze]

Agreed. I don't know much about audio at all but I really enjoy listening to his content.

[@byrongodinez5865]

Always learning something new in this channel 😂. Really like this kind of videos.

[@jackal8858]

Very informative video by far my favorite series which I will look forward to

[@googanhiem]

Bringing the science on the passive radiator, thanks HBB

[@BadGuyGoodAudioReviews]

[@nickdawiz]

Interesting education about the drivers! thanks for not skipping this one.

[@Nero-yn1mf]

Can't wait to see more vids in this series🤩,keep up the amazing work

[@BadGuyGoodAudioReviews]

[@isaiahschell]

Saw the teardown video. Looks like an interesting and well made set, but if it doesn’t sound good it doesn’t sound good

[@truemusic1]

Glad you decided to make a video on this issue, this only illustrates why graphs are not the end-all

[@SwordAndBored]

Thanks for including other channels info and giving the information on this set that you did. Glad you chose to do a video on this.

[@darcyroyceblake]

I appreciate youre technic knowledge and musical insight! DrBlue

[@un_tune9360]

Intriguing video! I heard the issue of the driver in a discord channel. So I was expecting this video to be coming soon. I would like to see more video like this.

[@BadGuyGoodAudioReviews]

Will be doing a "WTF Happened" series like Top 5's and No earphones left behind

[@un_tune9360]

@@BadGuyGoodAudioReviews Awesome!

[@Tsukasa941]

When I started in the hobby and felt like too many drivers didn’t do anything sometimes, this comes to mind with you just add “drivers” to make it work

[@BadGuyGoodAudioReviews]

Engineer wanted to have fun and forgot to listen to music...apparently?

[@BrianGlaze]

Yep. Just adding more specs doesn't make the tech better.

[@Nu-MetaI]

I was looking for this review but before coming here i already watched the tear down. Man Letshuoer getting blind with freq graph. Great explanation Chris.

[@MrDomq22]

I think it’s important to go against the grain every now and again and that’s exactly why I subbed to your channel years ago. You’re not the typical audio reviewer and I know I know, dad life got you softer than before 😉 but these videos are so necessary. Thanks for the vid, Chris

[@PreacherwithoutaPulpit]

This is one of those things that make you ask "What the heck" were they thinking? It's pretty obvious the designers of this set have no real idea how PR Tech was designed to function or how it's properly used. Great info as always. Thank you and God Bless...

[@revdna]

please continue your good work reviewing lots of interesting sets

[@TheKraka83]

I love how "technical" You get talking about different aspects of IEM's.Congrats on hitting the 50 K

[@btfr2]

Congrats on 50k! Appreciate the concise explanation of passive radiators which I hadn’t heard much about until your videos.

[@meh666_]

Passive radiator explanation was clear and straight to the point, Chris is such a blessing to this hobby

[@bluemax220]

It's excellent that you spend a bit of time explaining the science behind some of this tech. Really helps in understanding how that impacts your music. Thanks Chris.

[@vincebernardo]

Congrats on hitting 50k 🎉 Great dive into the inner mechanisms on the IEM.

[@RentABlackout]

Grats on the 50k! Speaking of Michael Bruce, looking forward to when the Glamdring hits the review, they sound like the real deal.

[@nmatheis]

Very good explanatory video, Chris!

[@dylanangel2870]

ngl i think this should blow up on the level of the kz fake driver shenanigans, they're adding something useless and you're paying for it, to end up with a worse product. also omg yes i want a much more technical series like this, its great

[@BadGuyGoodAudioReviews]

People love to hate on KZ (cuz KZ makes that easy) folks don't wanna smear on letshuoer cuz of self interests. It's the hobby unfortunately.

[@darcycraig58]

I really appreciated the detailed explanation. As someone who has dealt with a lot of car audio tuning and all the resonance / radiator issues in a system, its cool to hear it explained relative to an iem. Well done.

[@LordVictorHalgaard]

Fantastic video - when I hear of the layout of this IEM i'd gotten excited, but when I saw how it was laid out I decided to skip out on it. Great to see someone who actually has the unit pull it apart and show the issue!

[@DavidHorth]

I'll stick with the Galileo but interesting video, thanks! Oh and huge gratz on the 50k.

[@BadGuyGoodAudioReviews]

[@Madherk]

These companies should have some kind of test tracks and not just measurements, thank you for the informative video. Grats on 50k

[@geranopozzys7184]

I bought the EW200 I'm really pleased with it love the set ❤️ now I understand what HBB was talking about 😎😎🔥🔥

[@thyagolea0]

It's amazing how I almost always learn something new by watching your reviews. Thanks!

[@billviolette5274]

A really good example of why properly understanding speaker design can help make your iem designs better

[@sivert5714]

Thanks for keeping a eye out and testing hyped projects!

[@tristamminnaar4748]

Thanks HHB for bringing these things to our attention. Always so informative

[@jonathanpaul3393]

Thank you very much for the explanation!! And congrats on the 50k!!!!!

[@AdyatamaChoco]

Watch for review and leave with new knowledge .Thanks for ur effort man. King 👑

[@munawwarazim7747]

Many other iem maker should be paying their attention to this video. A very interesting take on the basic working fundamentals of how drivers and their installation/position inside the iem affects the overall audio performance. Thanks Chris for this great video 👍🏽

[@rappersorbee]

like this video format/series! this kind of critique is very important

[@drfredwilson]

Thank you for explaining the workings of passive drivers. Something to avoid.

[@ceeluh]

Always a great video, thanks for helping us out man! This does all make sense, thank you. This was just so informative.

[@Ankit_Kumar212]

You always get a genuine review from hbb. Congratulations on 50k🎉

[@omideq3zzz]

Almost pulled the trigger on these. Thanks for the video, keep up the good work sir!

[@jxdm97]

thanks for the info hbb and also to sir michael bruce! saw a week ago sir michael's post about this pr of dz4 on chifi grps. glad theres more follow up on this topic. very informative.

[@MrBambooLewis]

Dang, found these iems interesting, this video stopped me from making a purchasing mistake. I don't want open them up and seal them. Also congrats on 50k.

[@woodywoodman4309]

When I watched Micheal's video, I instantly wondered what you'd have to say on these, so I'm glad you made this video.

[@Mr.SparkleOG]

Could of sworn you are saying bandaid pro lol I wasn't even aware this model was an option. Pretty cool

[@Patrixst4r]

Thanks for the information, really good explanation about passive radiator.

[@StartCodonUST]

This video is great. It's clear, constructive criticism for a manufacturer, while also serving as an informative consumer warning, and a DIY guide for those that got burned purchasing a product with a terrible design.

[@hellboybihac]

I'm glad you did a review on DZ4 as I've seen so many posts hyping them up...

[@germanramirez6153]

I was curious about this set as it look promising with the different drivers like the quintet but at half the price. But no bueno lol. Quintet still on my top to get. Thanks for the video !!

[@scooper63]

Congrats on the 50k, man. Well deserved! 👏👏

[@joshstein9162]

The Young Frankenstein thumbnail is a great touch for a series concept like this. This is like a DIY kit for people in the hobby. You can get this and then modify it yourself and make it the way it should have been. This is not a very good looking set imo. Or not compelling to me, personally. Micro DD is usually lackluster. Congratulations on 50k! That's an awesome milestone.

[@JLa748]

Man that letshuoer 's shell is even reminiscent of another brand that actually made another big mistake with drivers a while ago, yeah that brand starting with letter K, ending with Z. I didn´t think this brand would fall into such mistakes, but well this is the range of chifi produce, the other end of this range is also shown in this same video: exclusive releases for China market only, like this Aful model. Lots of brands release china-specific models, which I don´t get, unless the rest of the world's eardrums are tuned different. Thanks for video, it will be so useful for lots of people.

[@juanblanco7898]

Wow, that's simply mind boggling, man. It's like they went out of their way to mess it up. Even if they had no idea what they were doing whatsoever it had to take some real bad luck to come up with such a bad design. Honestly, I'm quite bewildered. Wasn't expecting that from LetShuoer. They've never seemed to be extremely proficient in what they're doing, even despite having produced a good amount of earsets that were quite good. There was always some shortfalls or "quirks" to put it mildly, a certain lack of refinement dare I say. I've always felt like it wasn't due to deliberate tuning choices as much as some, less than obvious maybe, little mistakes/shortsightings. But this is on another level. I hope they will be highly incentivized to up their R&D game after this and grow further. They've got some talent in their team, that's for sure. Thank you for this video and, again, for giving a shout-out to Michael. He's a low-profile blessing in itself for this community, one of it's hidden treasures. On a somewhat same note, I can't help but find it strange that you've only recently hit 50k subscribers. This has become my favorite audio channel in the recent years, closely followed by Super Review. Have you lost your channel/subscribers for some reason at some point and had to accumulate them anew, by any chance? My memory may be missing something.

[@ramonlopez-sz2wq]

Snake oil!! It's funny I have an invested in the kinda of lava from letshuoer and is one of two of my best sets. I can't believe a company that would make such a great set makes something like this - keep it up

[@furia420]

Learning more than I expected every time I hit on yours vids. Cheers

[@PhillipFuller]

Love the deep tech dive on this one. Makes perfect sense.

[@StarBuccaneers168]

Thanks HBB, great insight on passive radiator. And congrats on 50k! 🎉

[@Mejonesin]

Thanks Chris for the review and also for the chance to win! You are a legend!

[@rileypenrose6625]

best iem breakdown on the internet. you rock chris!

[@mac2788]

Love Shortbus and Hifri ! Always very informative.

[@f_troop5886]

Nice information about the passive radiator... 👍

[@muhammadali.8170]

Just the thought of passive radiators working at such a small scale got me hooked since the start. Great breakdown of this set fam

[@utdiscreet9529]

ooh an upgrade to the performer. nice. amazing that you had just said that some sets were coming with passive radiators, and here it is!

[@elGenericos]

Sheeeeshh cool insight on that iem and thanks for the warning on those, congratulations on the subs!!, Waiting for the next part

[@mimiikumimic1852]

You may joke about it, but the overlay graph really helps with understanding everything you talk about

[@TALPOKEYASHA]

I'm all in for companies to try new things even if the first iterations aren't fully developed yet, there's a lot of potential.

[@Thoughtflux]

Been a long time subscriber to your channel. Thank you for another great review! I'm still in love with their s12.

[@paulosilva8200]

Good review. I chatted with michel Bruce many times. We have many things in common when comes to tuning and adjusting. Great person..

[@Oryent8008]

Very informative video. Congratulations on 50k subs and get well soon! 🙏💪

[@maxt.1726]

Great explanation. Very informative. Thank you Chris!

[@davidgozaly8299]

Great video, as always. Congrats on reaching 50k!

[@hyprfany]

interesting series, looking forward to the next WTF episode still waiting on my kailua to arrive, should be here by the end of the month, hopefully earlier!

[@ScottCStew]

This video is very informative and it's fun to understand how all the pieces and parts of IEMs work.

[@sioperajj]

Very informative video! As someone new in the hobby, I find seeing what modding is capable of achieving very interesting. Great video as always HBB!

[@anthonymah6031]

Interesting and very informative for covering more IEM, thank for helping for selecting the suitable IEM

[@mucklechumps]

Thanks for the informative and entertaining video. Your solution for improving this set is simple and brilliant!

[@mol3manskeems]

Cool to see that macro shot! As always great review ✌Also, grats on 50k!

[@pranckstyr]

Damn, too bad about this set. I’m just glad I waited to watch reviews for this before I pulled the trigger. My wallet and I thank you!

[@Clickonprofile43]

I Got Gifts For You 🎁

[@fiddlix]

Wow, that Band8 looks awesome. Interesting video. Thank you HBB 🙏🎻

[@KurtKloetentreter]

I was actually kinda interested in this iem but i dont think im gonna spend 80 bucks to have to diy fix the iem myself. Thanks for this video, that was really helpful and also a little unfortunate to hear

[@williamsimj]

Nice sound visualization!! P.S : i love your heyday

[@chanmunphang8361]

The information given from your videos are crazy good

[@taketwo6352]

This is a bummer I was considering this. Since this is similar to Galileo, should i get Galileo or go for the Quartet?

[@BadGuyGoodAudioReviews]

Galileo or more cash on Quintet..Galileo stomps on this in sound quality

[@sayhelloplz]

Thank you for the informative video and congrats on hitting 50k! Looks like graphs don’t always tell the full story on how a set will sound and what’s important is to use our ears ✌️

[@thechuchu000]

Enjoying the series, can't wait for the next part

[@alppn]

It might not like the usual review, but I find this kind of video really informative about the technology of the driver itself. Hope to see these kind of video in the future as well.

[@arieljimenez6785]

I was actually eyeing this IEM, I really appreciate your honest review otherwise it would be a waste of money. I hope you would be able to review the Hidizs MS3. Have a great day!

[@PrimeDesercrator]

The engineering that goes into speakers and iems is really interesting. Enjoyed your description of how the passive resonator works.

[@benlee1035]

Great video of a DIY fix to save an IEM. Thanks again HBB!

[@princenanaopoku2617]

Wow that some explaining to go with thanks bro ❤❤❤❤❤❤I got some understanding today 🎉🎉🎉go bad guy ❤❤

[@bmtdoc]

Good explanation, and thank you to Michael Bruce as well.