วีดีโอ

nicely summed up.

Awesome thanks. The burnt orange pads are classic. Last count I'm at 5 different models, but never had the chance to hear those 2200. As far as I know this model got a revamp colour change and became the HFI-2400. Kind of a pain to find speed swap pad replacements but a person can carefully cut out their own thin plastic tabbed rings ( trace the originals ) and bond new production pads to those new rings using a bit of sandpaper and then contact cement and voila ( hit up a plastic shop for thin styrene sheeting ) Did that with a pleather pad variant on these round cups. Will be grabbing a few more models down the road. Thanks very much for covering this one!!!

Great review! I really like your to the point approach, transparency and honesty. This combo is missing on many other channels. Insta sub. I like this unit for the simplicity and power.

A great review 😎👍🏼

Wow, now I feel old, thank you. I own a Ultrasone PRO 750 since 2008 I think. They seem to be very differently tuned from these you have, for the sub-bass in the 750s is simply stunning; even with the frustrating level of isolation they offer, it frequently shows me stuff I can't hear in my perfectly sealed IEMS. You are completely right in saying they were made to be listened to at low volumes. I guess this has to do with the fact that all old Ultrasones were aimed at professionals (for a while, they were popular for monitoring, and that's why I got mine), thus the stupidly long cables and the sturdy build - they will clearly last forever. I noticed the audiophile people seem to love or hate Ultrasone. I am a Taoist, so I love and hate them simultaneously all the time.

3:53 this is why i wish they would have just used a 3 way switch. That way you can manually select BT, AUX, or power. This automatic BT pairing is pretty horrible.

you fucker. I've been looking for these for years

All Ultrasone isnt good I guess except Signature Pro, Studio etc.

Its so cool all the creativity they used to put in headphones, most headphones today have a very standard setup, but before we had this all figured out it really was the wild west.

Hi Those two components at the driver are diodes. Since they are parallel to the driver and opposing each other in polarity, they are most likely Zener diodes, which would be used as a sort of overvoltage protection, or volume limiter. Once the headphone input signal is higher than the Zener voltage of the reversed diode + 0.7V of the other diode, the impedance the amplifier has to drive will be much lower. The impedance will sink up to the point at which the amplifier begins to clip.

The only meta tuned iem ive tried is the hisenior mega5est but i really enjoyed it, if I didn't have the fatfreq deuce coming in i would seriously consider this one as my next upgrade iem

Helllo there! Great review! A new suscriber here from Mexico. Ive just entered the audiophile world, my very initial gear is, Phillips SHP 9600 open back headphones and the Fiio Q3 DAC, I Know this set uo is pretty humble but Im pretty amazed with the sound Im getting. I need your advice here, Im considering this monitors , and use them also with my DAC, can you explain me how this would change my music listening experience? I know rhis monitors are not headphoness, whats would be the main difference? And my last question, Im an absolute newbie, between this monitors and the Hifiman Sundara headphones, whats do you think is the best way to go for me? Thanks in advance.

👌🏽😎

What is that music bro?😂

So the soundstage of the Red isn't good, but would you say it's better than the soundstage of the Salnotes Zero?

Thanks for this always interesting to see what you zero in on in this huuuge iem market. Great coverage.

You can find modern iem with very "good" sinads nowadays for dirty cheap. Sadly I dont like them, its so unnatural to plug and hold anything deep in your ears canals. Ear buds or in ear its another story, but buds holds very poorly. But with some pads are almost okay. Leakage huge, but comfort on streets more important for me.

The TPA3116 based amps are really only best paired with high efficiency/sensitivity speakers. Anyone have feedback how it sounds with speakers in the 93db and above sensitivity?

There is a part of me that really wants to pull the trigger on the KE4, and another part of me thats is screaming "naaaahhhh!" So for, thr "nah" is winning. I think this is one of those IEMs that just plays it too safe, and provides nothing remarkable. It has that same "master of none" feel like the Cadenza4, these strict JM1 super neutral tunes are being precieved as mundane and boring, and too middle of the road matter. And i think, ultimately, that hurts their appeal, in a sea of options where gimmicks and wow factor rule the roost.

Same thing happened with me. I got to try them the linsoul booth (honestly I was there try the 7hz timeless which they didn't have) and I immediately knew I had found the right iem. I quickly went through my test tracks, and fell for them even more. I bought a pair for the 11-11 sale, so hopefully I'll have it in about a month.

Lately they caught my attention as most elegant bass heavy cans. Problem is that cable since my amp got only balanced outs and not many aftermarket brands make it. Had the same problem with my ADX5000, japans dont make it easy I guess

So do i hold the button for 5 sec on rca mode or bt mode, bc the book say the light will turn red. It never did. And now the amp can't connect back to my record player 😒

God bless reviewers that measure the nozzle.

Thanks for the video. The Spirit designated models were all cryogenically treated. The newish release pads are great and have an even better thicker inner ear fabric weave vs what you have with those saved original inserts.

Quite a good point on the dust covers. You can still get them included with the 202/207 and higher pads

I tried a few stax over the con I went to recently (I said I was going to leave a review but i forgot to sorry) along with a couple other estats like the entire hifiman range and I think I discovered that estats are not for me, they are amazing in terms of detail and technicalities but none of them had a tuning I could enjoy, they were all too base light and hot in the treble for my preference, they didn't excite me much beyond their technical capacity. Until they can put whatever type of black magic they used for the raal immanis in something that doesn't cost a car I'm still a planar person.

Kaldas RR1 vs Stax L Pro vs Perun?)

Recently bought JVC d990 for 90$, very interesting ones. Ive had round leather sides+velour 4cm fat soft pads for perfect seal from r70x, PS: this pair dont like any close-side leather pads (and 2 other pairs on the way oval and angled). And only with 100% seal 2.5-3cm from ears they drivers works as they really should. Bass (from memory) sounds better than on beyerdynamic 1770 gen1 and better than r70x and hd600. So the seal is only problem, sadly pads so fat, that I cant use it with hat on streets (looks to weird) and hat will muffle/block sound a lot. Also d990 have no crazy detail like modern headphones, but enough. So They can be really called "reference" but for the original price in 1993. Now it would be 250$. So good mid-fi+ headphones. Thanks to Greq reviews for SINAD, only site where Ive found it and decided at least to give them a try.

Great video! I love seeing in depth video about old stax headphones. Now i understand why my 404 lambda's have dustcovers on them and my Lambda SR Signature don't. I agree that the old Stax lambdas like the Signature offer big soundstage and its one of the main reasons i fell i love with the stax brand. It is incredible how such old headphones can sometimes even offer more detail in comparison to nowadays mid - high end headphones. Best thing i've ever heard was the X9000 on the Blue Hawaii amp on a Mytek Manhattan II DAC. To me it sounds simulair to the Lambda Signature tuning but even more expansive and detailed. It has incredible depth perception in the sound stage and imaging is spot on. The Lambda Signature to me is like a mini X9000 and i would love to hear those headphones again.

3:44 Sony Ericsson hpm 64

Could you share your EQ settings for making these sound better? I'm curious about the bass boost/treble reduction you did

The left one has gone quite than the right one is thier any fix

I run my TH900mk2 via the ADI-2 and EQ the mids up a touch and treble down. Adds width and brings the vocals forward. I love them. These are the best cans to rock out, no questions. V tuning is a dirty word to most reviewers whose slavish devotion to neutral tuning I find tedious. Also if you older, you don't hear the high treble anyway so no big deal for me. I love em.

Very good review. Thank you. You must be A TOP REVIWER. I whish you to get 1M+ subscribers. Good luck

Mine arrived last week, but you need to turn the volume past 3/4 when using Bluetooth to get decent volume from my kef q150. Possibly a faulty unit?

I have a pair of these that my late father in law owned. Sadly, the side pads are somewhat flat. I'd love to restore the pads. Anyone any ideas how to 'reinflate' or replace the foam in the side pads?

Your voice alone earned you a subscriber 😂

I got a Sennheiser HD560S and a Creative 2.1. Its OK to pair with the SK01?! And its better for de 2.1 to connect in Line Out or in the headphone 3'5 output. Love to equalize the Bass for films without SW. Just mechanicaly with this tool. Thanks! Apreciated

Hi. Great video! Do you think it would be a good option for improving Nintendo Switch audio in dock mode? Thanks!

How is it compared to hd560s? Im torn between alot of choices, cal 1h is heavily discounted here and it is brand new too, but then i heard about the off the shelf driver

I have HD 560s and thinking to get the jt1 from AliExpress. maybe I have a faulty HD 560s it is the worst headphone among what I have. it is weird it is so boring and have airy filter that cover anything specially while gaming. I have SUPERLUX hd681 with oratory eq it is awesome for the price and have much better separation and u can define right channel and left easily in games not like the crap Sennheiser HD 560s. even astro a40 is superior to the HD 560s. so does the jt1 have the same thing I described about the HD 560s? my main usage is gaming. thx for the review.

Did you used two foams or one foam. ? I loved using two foams in Silver Nozzle. It was warm, smooth, i loved it.

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wow besides cable they look perfect 👍

I was surprised to see several modern closed back gaming headphones scored above hd600 in rtings site (in flat sinad). for example SteelSeries Arctis Pro, wich used new can be found at 50$. Sadly all main wireless headphone models designed with maximum generic look.

Cool unit-but no headphone jack !

what was this worth back in the 90s? very interesting review!

I don't have anyone to tell this irl but today I'm going to the biggest audio show in my country and I'm going to try as many cool headphones as possible, maybe I'll leave a short show impressions after I get back

I have tried MoonDrop Blessing 3 and Kato offline. I prefer the bass of Kato,Blessing 3 bass Too much gives me a headache and discomfort but Blessing 3 in other aspects. Due to price and takes 10-12 hours to wearconsiderations, I prefer SIMGOT EA1000, If it were non-metal, it would be perfect for me What I want to ask is, among the many headphones you have heard, are there any that have a cavity made entirely of 3D printed resin, but the tuning and price are the same as those of the SIMGOT EA1000?