The 800 series Sennheisers have terrific soundstage and are spectacularly comfortable.

are pads about 17mm thick?

Get the 840A you won't be disappointed if you have a decent amp. They are truly spectacular for the price just like the 400SE, but in a different way.

I don't recommend Sennheiser IEMs. Their life span is far worse than Sennheiser's over-ears and all of them has very similar tonality: sucked out upper mids and piercing treble.

Sennheiser IEMs does not have better QC than Chinese IEMs but their over-ears can last for decades.

what do those shells have in common?

idk all i know was seeing him in a discord claiming he knows exactly how a transducer sounds by just looking at the graph and simulating it in his brain LUL

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So I'm not gonna need to upgrade anytime soon? Aww man how am I gonna justify my GAS? /s

Truthfully though, the first time I experienced my 400se it's just too magical. I live in rural area and the way I can try a different set of headphones is to buy one, online. At this point I'm afraid to purchase anything else as a sidegrade, while upgrading might means that I need to spend 10x of the 400se.

Sexy

Tonality is better, but thr timbre being bad is a universal thing with Hifiman. Even the Susvara suffers a bit from it.

Thank you for your help my friend. I adjusted the volume the way you suggested and someone else said to play with sample rate. By doing both of those the Sennheisers sound wonderful now, I haven’t tried the others because I don’t want to take these off now lol

This may sound silly, but have you tried going with a larger size. Also what is the earbud your using specifically?

Thank you my friend. Another person told me I should be maxing my windows volume out and adjusting with the amp only so I tried that and upped the sample rate. It sounds wonderful now

yup. trying to plunge it in further doesn’t do anything either.

Does it just slip out of the ear?

the earbuds did come with foam tips but they don’t really help. thanks for the suggestion tho!

I went from DT1770 to the XS, I'll never go back to beyerdynamic. Much prefer the bass in the XS after a +3dB low shelf.

I went through three pairs of SE215s, the non-removable cable broke after a little more than a year on every pair. The warranty is one year. Never again.

What about the Ananda Stealth tonality and timbre?

HD560 and high-end Sennheiser headphones in general are high ohm headphones, built in / designed for a time when people still used their stereo headphone jacks which use resistors as you describe

I laughed way too hard at this.

I tried all tips, even tried to fit my CP100 on them, but they almost got torn apart

Hey, I have many Realtek ALC897/1200/etc. motherboards. Most motherboards will be using Realtek ALC897/ALC1200/etc. even if they're expensive, check the specifications and photos of the I/O (where all the USB/Ethernet/plugs/etc. are) to confirm the audio features you want. Usually the simple green 3.5mm port is all you need but some people need extra things if they want to use speakers and so on.

Sometimes the implementation is just bad, so you do have to get an external audio device to fix that background hissing/buzzing/static/distortion/etc.

Dongles with physical volume control (helps with reducing/remove static/buzzing/hissing/etc. noise, especially when gaming) and PC gaming: https://www.reddit.com/r/headphones/comments/1221u9k/what_digital_connection_from_pc_to_dac/jdonhuc/

Definitely check the above link, it talks about the Apple dongle or dongles without physical volume control, but definitely go for the dongles with physical volume control for better volume variation, especially with headphones.

Open back headphones and solutions to PC noises: https://www.reddit.com/r/headphones/comments/11dh2v9/is_there_anything_i_can_do_stop_hearing_my_own/ja8mltw/ and https://www.reddit.com/r/HeadphoneAdvice/comments/xpa9zd/pc_noise_with_open_back_headphones/iq2znjn/

Basically search up Noctua fans. Specifically the Noctua NF-A12x25 PWM fans.

These days there's the Thermaltake ToughFan 12, Phanteks T30-120, etc. that are a bit cheaper/better/etc. compared to Noctua. The Arctic P12 PWM PST (5 Pack) is still the best value, just be aware of the annoying resonance range, it's like ~1000RPM.

There's also the new Arctic P12 Max that recently just came out, check the reviews of it.

So yes just a get a well-reviewed dongle with physical volume control, it'll reduce the noise for sure. A lot of dongles are overkill, even the $10-50 ones, so don't worry about them not being able to drive your headphones.

Qudelix 5K, other dongles, Bluetooth connection issues, TWS adapters, et cetera: https://www.reddit.com/r/headphones/comments/11xmti7/unpopular_opinion_i_do_not_enjoy_qudelix_5k/jdap65c/

Edit: Whoops, just take a closer look and realized OP has the T40rp closed back and I have the T50RP.

In my experience, they're more like an open back, barely isolating anything. The sound leak is not that bad, I can use them at the office at a moderate, comfortable listening level.