Chair

Ditto @overthemoon Ekhorn stressless. What I find that I like about them is that when you sit in them, you’re not constantly shuffling around trying to find that comfortable spot in the easy chair. 

Eames lounge and ottoman, its a classic and comfy as he11

The Poäng chair and ottoman are good, but they don’t suit everyone. I need to place an additional cushion behind my back; otherwise, I feel the need to hunch and tilt my neck and head slightly forward. With the extra cushion, my posture is corrected to a more upright sitting position, which feels much more comfortable. I suppose the ergonomics of the Poäng chair could be improved, but it may still suit some people on a case-by-case basis.  Go try it yourself and see if it works for you. I’ve fallen asleep on it many times with the music playing.

Stressless looks nice! More than I wanted to spend though. 
 

Going to try the Poang in ikea as well. 

I've got a Pair of Chairs with matching Leg Support Stools in the listening room that are quite similar in the design to the Stressless Design.

These were a £1000 (receipt supplied) as a new purchase which I bought used and with a Leather Upholstery in immaculate condition for £100.  

Leather is fine as I don't listen in overwhelming heat, also I'm more of a autumn / winter listener for long periods in front of Speakers. Fabric would be suitable if extreme heat is present when listening is occurring.

Cushions don't really remain put on leather, so an anti slip aid will help or go for a Fabric Upholstery. 

I've always wanted a Massage Chair seen in Shopping Malls, but it is an absolute luxury and will most likely produce a noise during listening that is a detraction.

The Link shows the idea for a chair, but I would probably pay more to get one to fir my frame size.

https://uk.royaldeals.co.uk/product/massage-chair-full-body-neck-shoulder/B0DGQDQ3JX/