I would draw your attention to these headphones: https://headfonics.com/dekoni-audio-blue-review/

I think there are differences, but the sound signature is very similar: https://www.rtings.com/headphones/reviews/audio-technica/ath-dsr9bt-wireless https://www.ixbt.com/ds/audio-technica-dsr9bt-review.html IMHO Sr9 and msr7b headphones are in different price categories.

In this version, it is impossible to hear the echo. I wrote you a private message.

IMHO, They are not very good: https://diyaudioheaven.wordpress.com/headphones/measurements/audio-technica/ath-sr9/ Yes. Details I check on the song Dire Straits "Water of love". At the very beginning of the song there is a knock and an echo should be heard. You need to turn up the volume to...

I tried to remove the diaphragm (white circle sticker) between two cameras this headphone as described in these messages: https://www.head-fi.org/threads/audio-technica-ath-msr7b-impressions-discussion-thread.893314/page-48#post-16132360...

Sorry mixed up ;(. Shure has only 1540 and 840 closed.

In this case, you can pay attention to 1840? https://diyaudioheaven.wordpress.com/headphones/measurements/shure/srh-1840/

Good review on headphones Shure 1540: https://diyaudioheaven.wordpress.com/headphones/measurements/shure/srh-1540/ Rated really closest to HD600: https://crinacle.com/rankings/headphones/

I also have such ear pads: https://www.brainwavzaudio.com/products/headphone-memory-foam-earpads-round-protein-pu-leather-various-colours Compared to angled ones, the sound in them is less bright.

You can list which ear pads you bought and briefly tell about them. I think this will be very useful for many owners of these headphones. Thanks in advance!

I have not modified these headphones because they are under warranty. But most likely I will be engaged in the modification of these headphones. A big request to you - you have extensive experience in modifying these headphones and a lot of messages in the subject with your modifications, and...

Good bass in the composition- Yello "Way down". Yes, you will not hear a Turkish drum and the lows in album Honeymoon are not very good, but I would not complain about the bass. These headphones take a long time to burn. IMHO most headphones require an equalizer. Better if the hardware...

I can't, since I don't have dt770. If I compare headphones by measurements, then I need to have THD measurements. An overview of the dt770 with measurements can be read here: https://diyaudioheaven.wordpress.com/headphones/measurements/brands-a-i/dt770-pro-250%cf%89/

Yes, they need to be burned up - 100-150 hours. Indeed dt770 more bass and better highs. But the dt770 has a 7kHz peak.

If you want try dekoni: https://dekoniaudio.com/ I also put a ring of dense cellophane under the ear pads, it looks like such a ring: https://dekoniaudio.com/product/dekoni-audio-attenuation-ring-for-use-with-fostex-massdrop-x00-th610-and-th900-headphones/