HD 620S

If you do try the HD620 based on the other comment, make sure you have a return policy where you buy them from. The headphone is highly fit dependent. They wouldn't even sit straight on my head and kept getting off my head because of the insane clamp. And I use HD660s/600 as my daily drivers (when I'm not using the Koss KPH40), so I'm not new to clamp. Plus I found them to be a bit boxy in sound. I'm still waiting for a good closedback from Sennheiser for monitoring, I was hoping HDB630 would be it, but the latency due to the in-house dac makes it a no go, hopefully they make a passive closedback with the HDB630 sound as well.

Im considering these to monitor my voice for vocal recording (for youtube videos). Would you consider these to be viable for that usecase? I've tried DT770, HD620s, DT700, Meze 99 and others but they didn't suit me due to my large head and comfort issues. Also did you EQ them? (do you have any EQ profile for these?)

I recently bought the HD620s, probably the most detailed closed backs I've ever used!

For competitive FPS it is probably better to have closed back. I have a hd620s which is really great for that. Great soundstage for a closed back and impressive imaging.

I find open back while playing instruments to be distracting, and the musicians I've had try them have agreed. So if that is going to be important I would stick with closed backs. The FT1 is a very cool choice. I find it to be a great value, but you may need to get pads and a head strap to help with the fit. Many have. Just remember to consider that in the cost. Their are a lot of option in this range, but you also can't go wrong with the tried and true sony mdr7506 either. Great for instruments and an easy daily driver for other things.

The Sennheiser HD 620s might be better for you than the FT1 for what you're looking for. For IEM i would suggest the Moondrop Kato. Even though they are a little V-Shaped, i found the included brass nozzles quite pleasing for vocals and the rest you listed.

The Fosi doesn't do much to the sound other than provide more power. You might not need it for most things, but something like a dongle dac will choke out as frequencies peak and the impedance curve of the headphone gets very high. Something like Why So Serious? around 3:20 in is a decent sub bass test track that is pretty obvious when the stack falls apart. Superstition by Stevie Wonder has very clear cymbals and tambourines, that will clip and sound weird without enough amplification. Also the hd 6xx are 300ohms and really shine on OTL tube amps imo. Something like the ta-26 is a good start. lol, if you don't hear a difference between that the Fosi, you'll need to get your ears checked. Also, when auditioning new stuff; I recommend spending a week or two using only the 6xx and fosi as much as possible. Make sure you get well and used to what it can do on your head and in your environment. Then when switching to something else the changes are more obvious.

Using the ARC/eARC HDMI port out of your TV into something that takes in ARC is the only good way. Optical out is okay for speakers in general, but for headphones it's too easy to pick up on the poor quality imo. Fosi Audio ZD3 is a budget option with ARC support. Ferrum Wandla is a summitFi option. Bluetooth is completely terrible and generally should be avoided. There are exceptions, but not with a Hisense. If you really need wireless and already have an iPhone and Air Pods, you could get an AppleTV. The newer air pods support their low latency spatial audio and work very well.

It looks like it's poorly made and a risk to anything plugged into it. On the USA Amazon we have access to UGreen products which are still cheap chinese garbage, but generally have a reputation for meeting specs and being durable enough. Still, we have a lot of problems switching USB inputs at CanJams. When you plug in USB there's power, data, a handshake, all sorts of stuff going on. A DAC is not a PC made for USB fast switching. Even the best devices get annoyed with constant switching and often start needing restarts for a variety of issues. If the topping is working well for it. Great. You're lucking out. BUT, if you introduce a switcher, it might keep providing power while only switching data and a lot of DACs i've dealt with HATE that. When i can for peace of mind, I usually turn off the DAC before plugging/unplugging USB. Just food for thought.

Momentum 4 are great, don't get me wrong. It doesn't touch my list because I don't have any need for wireless headphones. If you want/need a wireless headphone, momentum 4 is by all mean a great pick. If you need isolation and don't mind wired, hd620s is another fine choice. In the end, it's about your wants and needs. Our life differs and so will our choices

shp9500, makes me value good mids over boosted bass. Now I'm happy with both my hd660s and hd620s. I also got a few pair of iems which are great, but never actually use anymore. Still wondering if I should sell them lol

full sized. I pick my hd660s and even my hd620s over my ier m9 anytime