Why Multi Driver IEMs Are the BEST 

KZ called. They want to make you their brand ambassador.

If you keep up this kind of quality content, I might consider donating to your channel. Besides audio science review, it's a breath of fresh air to get a proper understanding of audio and not get BS from crinacle trying to up sell garbage iems.

its all fun and games until Crinacle does a collab and gets them drivers disabled.

Most of the money spent on this hobby is for the last 1% and even then it doesn't guarantee the audio will be good, just that you paid more money. I can see the money on the variations being worth it though since it actually holds performance with what it costs as opposed to some $1000+ gear that's there to flex more than anything else

I am not so sure if it really is a theoretical problem. I am also not sure if most companies really try to tune their IEMs to the Harman curve. But there are single DD IEMs that come it quite close (admittedly not as close as the Variations or other hybrid ones, the ThieAudio Monarch, the Symphonium Helios, the Softears RS 10 or the AKG N5005), but if there would be investment in tweaking I do think it would be possible. These are even cheap IEMs, like the Sony MH755 (crazy $10, if available ) or the Korean Neusonik Direm E3 ($35).

Looking forward to your inevitable future debate with Crinacle or someone else. We just need to get you big enough that it forces them to address you directly.

Something tingling in my mind during my dream awoke me and lo and behold a new sharur video to watch past midnight appeared after turning on my phones wifi

I've been thinking about the possibility of developing an IEM that has a dac/amp and a micro controller inside, that uses cables ending in USB C or Lightning. Inside it would have an unremarkable but low distortion DD and maybe a BA. When the sound comes through the cable, a micro controller could do EQ to your desired target and then convert that audio data with the dac/amp to be played through the DD+BA. At first I thought about housing everything inside the IEM and letting people use the cables that they want, but you'd have to convert the analog data to digital, process it and then convert it to analog again. This method might also make the IEM to have very low sensitivity since it needs more power to process that stuff, or maybe it could use a simple battery. Doing any of those could let you have an IEM that sound however you want on any device without having to deal with software.

Variations need more air above 10k, which something like the u12t excels in. But if you have bad hearing I doubt this matters.

i remember going to the iem store and listening to all the TOTL IEMS and all of them sounding really off, unlike my final audio f7200 copy from aliexpress they all had multiple drivers iem hobby is mostly a practice of coping

you always speak in theory, but in real world it is not like that. when i enter the hobby, hybrid iems also seems like a no brainer but the reality is that i no longer listen to my hybrid iems (fh3, spring1) and i only listen to my single driver iems that are similarly priced because they sound better (s12,olina). that is called a reality check.

Do you know for sure that the EST drivers in the variations are actually assigned their own crossover? reading around, I found a post sourced from a Dunu representative that suggested the EST drivers are used primarily to alter timbre, and are often implemented with what seems like output that is low to the point of having small/minimal effect on SPL. I contacted moondrop about this, as I don't see anywhere on the variations' product page that they're actually using a three way crossover (unusual because it's touted for both the s8 and blessing 2), was wondering if you'd already investigated.

Does the stock tuning and fit of an IEM really matter that much when you can use oratory1990's presets to make it closer to the harman target than the Variations, and throw on etymonic style triple flange eartips?

I dont know nothing about audio but still watch every sharur videos

that midbass tuck is not natural for IEMs which bleed a lot of midbass warmth already. I’m convinced downsloping mids like that will always sound thin no matter how much subbass you add because the warmth is gone.

Absolutely agree with you. At least, I haven’t tried any single DD EIM that could get both “sides” of frequencies (lows and highs) right at the same time. Moreover, I don’t think DD can reproduce drums cymbals as organic, or natural, or realistic, as BAs, or even better ESTs. I might be wrong though, but that’s my experience.

variations isnt cope, if anyone can try it they should, it depends on the library but for mine its a fit of a glove.

Sorry, that's bullshit. Multi-BA or multi driver are only 'better' if the phase is flawless. 99% of multi BA/driver earphones are imperfect designed, to say it with love. All inears struggle with the ear canal resonance that provides interference problems (most dip and peak around 8K / 40 mm wavelength). Peaks must be corrected by EQ for each ear canal individual (length varies from 30-45 mm). A deep insert like final audio design shifts the problem to higher frequencies, so easier to handle in this form. At the end, you can get good results (EQed) with both, single DD or multi driver. But as long multi BA/driver are not setup flawless in mainstream products, you get better chance for acceptable sound with average single drivers (and less phase problems).

I'm intrigued, thanks!

You should take a look at the AKG N400: One single driver and even closer to the Harman curve than the Variations. And cheaper. Why don't you get these?

The Final Audio A4000 is a single DD and received 84 points by Jaakko Pasanen, making it place 3 in the long list quantifying adherence to the Harman curve, Moondrop Variations just 82 points. So gone is the arguments....

What do you think about HIFIMAN Edition XS ? We need to find a cheaper version of Dan Clark Stealth.

Is the westone pro x50 a really good choice for the 600usd it asked for? As its the max i can spend on an iem. And i want a brand that is well known for its sophiscated tuning.

Do you think its possible to EQ CCA CRAs to be much superior than CHUs? (Im not coping, just curious)

At the end of the day, FR is the most important thing. If a company could design a tuning filter or waveguide that could fix a single DD’s response then that would be worthwhile.

There a reason why moondrop use ssr Driver to make Spacks, because ssr is good to eq.

I wonder if a 14mm DD bass and a 6mm full range DD could work. At least I assume the reason DD typically don't do treble well is due to membrane breakup in larger sizes rather than a moving coil being a concept doomed from the start. If they were the Vifa DQ25SC16-04 wouldn't be a recomendation from John Krutke who is probably the most measurements guy I've ever seen when it comes to loudspeakers. Or I wonder if using said 14mm and a full range BA and a tweeter BA would be unquestionably better anyways. All this thinking and no answers anywhere makes my head hurt. ... But speaking of John Krutke. According to him you can beak down the performance of ANY loudspeaker into 2 factors: Linear distortion, which is any deviation of the speaker from the target curve; in the case of a loudspeaker, dead flat; and non-linear distortion, which harmonic distortion and impulse response are part of. So as I understand it all THE TOTL IEM would probably have a 200Hz 6dB shelf peaking at 60Hz (or is it 100Hz?) Etymotic target, with a THD 40dB+ below fundamental across the entire frequency range, with no sign of ringing at any frequency. Edit: I wanna mount a home theater eventually with a pair of Cinetor-evo and a pair of GRS 18PT-8 in RiPol layout for bass.

I bet tuning a single dynamic driver would be difficult to even hit a target curve perfectly. why cant most multi driver iems achieve this though? This is a very technical part of the hobby I have no experience in obviously but I'd be cautious about multiple drivers with quality control. They just glue all that stuff in there and I guess it pays to buy from a company that checks for imbalance problems.

The big and heavy bass driver struggles to reproduce treble - but it's inside an IEM, which is tiny. How can it be big and heavy? I suspect that treble issues have the same cause as room nodes in loudspeakers, but the "room" is now so much smaller that the frequencies are correspondingly higher. We have subjective reviews, we have measurements, but no reviewer presents any investigation to isolate causes and effects. I would appreciate some research on this, is there any? The most I hear is about some "tuning".

I would like to see an IEM with 1DD+1BA. A BA just for the subbass and a DD for the rest of the spectrum.

How about the Planar IEMS ? such as the Timeless, S12 and Hook X ?

A lot of iems “audiophiles” shill are muddy asf

The whole Sennheiser's single driver true-response technology sounds like a gimmick. But still I've heard nothing but good about those IEMs

What are your thought on the ER2XR?

What is the best tuned headphone?

I second this based on my experience... They (single DD) sound really bad in high mids and treble... They sound unnatural and harsh. That is precisely the reason I only buy multi-driver IEMs.

Nice, thanks for the video, asked you before in the comments about multi driver. Pure gold content.

I am looking to buy moondrop aria ,was always dubious of the single dynamic driver bit.Can you suggest a good iem around 100 us dollars?

Well done. Really appreciate the details.

Lol I don't understand why you always make "this earphones suxx" for all "good earphones" according to every other reviewer 😂

@Sharur what hyrbid iem will you choose under $50?

It’s a miracle that singe driver IEM’s work at all 😋

hey Sharur 🥰 i was wondering if you could offer some sort of deal on a Variations 😳 would be pretty elite 🌟of you, maybe i could even give you something in return 😜(level 24 peaks and dips in harman how to listen)... 🥺 thanks for your time ⏰

thoughts on the Mangird XENNS UP?

Dan Clark Stealth is also single driver lol, ah but ofc you're talking about IEM adding BA also comes with a cost of higher THD even the lowest recorded THD in a BA can't be lower than 0.2%, and also need a higher skill to tune due to their higher acoustic output impedance, something that's hard to do even for Moondrop. I hope variations will be their last hybrid configurations unless BA manufacturer can lower their THD.

Let it be known, a single DD and BA should be more than adequate. 12 driver iems are just marketing memes and likely to have more QC unit problems.

Sharur's next video is going to be why multi driver iems suck

How about ER2SE?

Multi driver IEM does not always mean good IEM. For example KZ lol.

try LG Tonefree, check its response fr. They can tune the earphone by EQ and Q values too.

What about KZ DQ6 guys? Is it a good choice??

What about planar IEMs?

Because of you. I stay with speaker :v

banger vid

I wonder if the ThieAudio Elixir is the only good single driver IEM. DD and BA should be the least an IEM has.

Thats why i just love my amazing KZ x Crinacle CRN. Oh, wait... F F F...

Your english wow that’s soo perfect i ever heard in an youtube channel damn❤

Muted ignored.. wish I could prevent this channel from every appearing in my algo again

Great video but I’ll buy the ie-600

@Sharur wut bout final a8000

good morning sir

Isn’t the quarks dsp single dd

So hurray to Honor Earbuds 3 Pro and Huawei FreeBuds Pro 2 with Dual Drivers!?

well i have the soundcore liberty 2 pro single DD + single BA bass is clean (no boost after 200Hz) but it's still sound worse lmao let me just coping with eq rn cause i'm poor

IEM 3BA 1DD & 4BA 1DD always SELL OUT before I could get my hands on them.

I'd say multi driver doesn't matter As you said multi driver earphones doesn't have enough treble response above 10k they fall down But some of them have that and much better sound than multi driver Iems I won't name it's a secret anyways but how DT770 Etymotics CX180 HD6xx Verum 1 are able to deliver most of the frequency ranges I will say single driver earphones are still better than multi drivers They sound good and they can fit in ears better I used a Mini Subwoofer a tweeter and a dynamic driver in a Over ear headphone And I compared it to the same headphone with one dynamic driver Somehow Single driver one sounds better over entire frequency range Multi drivers have issue they can distort the whole sound or make some tracks sound like pink noise

So what frequencies do EST drivers in the variations emit?

So, if I am understanding you, you have a belief that single driver IEMs, like the Kato, lead to muddy bass and a poor high frequency response. Three words: FAudio Dark Sky. Go give them a shot. You can produce a good quality single driver IEM, but you have to put a little money out to get it.

3min and full tooo information ❤

"Single DD sucks" -ER2SE fanboy

I can see what you're saying and I would agree in that I think a dual dynamic driver configuration would be best. 1 highpassed dynamic microdriver near/inside the nozzle and a larger dynamic lowpassed woofer. However the argument that you can't tune a single DD without mud is false. You could simply add an electrical filter to the single DD that drops 200 Hz. The true evil are BAs imo. They were never intended for high quality playback. Only for hearing aids. Especially in the 90s the small size and high sensitivity was more important than the BA's shortcomings: limited bandwidth and high distortion. Nowadays even hearing aids start to use small DDs (diameter < 6 mm) because they are simply better. Only reason they are hyped in the audiophile scene is because they used to be expensive and different. Of course you want a BA in your $20 IEM when the expensive TOTL halo scam uses them too.

Please review DUNU Titan S por favor!!!! :3

Imagine for a minute a food critic in his late twenties or early thirties- this food critic goes around writing reviews and narrating these reviews on camera. The critic goes into great detail discussing the nuances of flavor of foods from all around the globe. The critic makes a list of favorites, makes a point to describe in very strong and certain terms, which foods are amazing and which are to be avoided at all costs. The critic is even very critical and personal in some reviews. He seems to attack the geographic locations of the food, the chefs and even other critics or fans of the food who have tried the food and loved it. Now come to find out, this critic never even been to any of the countries or locations where the food is served. Much less even tried the cuisine that the critic is so judgmental of and espouses to be an expert on. The critic only knows what he knows about the various cuisines based off of online recipes, vlogs and stories written by other actual food reviewers or chefs. The food critic in question has barely been out of his own neighborhood, never mind that this critic has not travelled and actually tasted these various cuisines. This critic has only tasted the foods from his home town or foods prepared by his mom, whom he still lives with. Now imagine we are talking about an audio gear critic. You have found this critic. A charlatan.

make one which doesn't "suck"...

what about Mangird Tea 2?

I hope this guy gets enough funding so he can review many headphones and IEM's. He's literally the only guy i know who is using scientific data and objectiveness to backup his claims. Respect.

Man can u give me a feedback of timeless im newbie

My FiiO FD3 says otherwise, it’s not garbage.

You lost me at "real audiophile" 😂

That was a great video, now please find me a cheap multi driver iem that i can actually enjoy and don't have to sell my kidneys to buy!!

Why do you use terminology such as "correct" and "incorrect"? We are not at school or at a jobsite.

engeneer gaming

Looks like variations is a dark treble, too much air garbage

Manufacturers get drivers much cheaper

Bro hear me out, ranking of headphones that are not variations, even if they are shit

wait but er2se is a single driver and it's awesome 🤔

KZ says hi

wow

what about planar?

Xba n3

etymotic evo totally ruined this "common sence"😅

Single driver is for chifi only

This video is some fine wine trolling

Para él todo es basura jajajajajhaa

Planar + DD + BA !

Poorchuds love single driver, its all they can afford

L youtube channel

First