What are important features in a listening chair

Yes. Increasing volume reduced need to cup ears. Now my arms don't ache so much.

Little known secret: Sitting in a IKEA Poang Chair, wearing an Urban Sombrero (from Seinfeld show) tilted at precisely 45 degrees, almost replicates exactly the acoustics of Carnegie Hall! 

Seating features I seek:

Armrests, are a must for me.

Cushioning that provides  support and pressure-point reflief such that I can sit for as long as I want without discomfort.  Often hours.

I really enjoy good support behind my head.  So, I either need to determine that a high back seat (with pillow added for support) does not degrade the SQ compared with a low back chair or I need head support that is pretty much as narrow as my head (as others have mentioned in this thread) so reflections are not a problem.  Sounds pretty custom, right?  BTW, my rear wall is almost 9' behind my ears.  I am currently in a low back chair that replaced a high back one.  Made the change about 7 mos. ago. The low-back seat is also 3" higher.  The SQ improved compared to the high-back chair.   Why?  Lack of chair behind my ears or ears 3" higher or both?

I've since moved the seat and speakers after using an RTA app to find my anchor seat (jim smith's book, Get Better Sound).  SQ improved so so much.  And I moved my gear from between my speakers to the left of my chair.  CRAZY good improvement from moving gear.  So, to be thorough I'd like to bring in my old high back chair to see how she sounds.  I'd make adjustments for the 3"H delta, naturally.

Satellite dishes need to be larger for weaker signals

Desert Rat Ears offer ample evidence. Audiophile tweaks at the genetic level. : )

However, how one avoids the predatory strikes of a sidewinder rattlesnake, while in one's comfy listening chair has yet to be researched. : )

From: AMER. ZOOL., 20:247-254 (1980) Morphological Adaptations of the Ear in the Rodent Family Heteromyidae

"SYNOPSIS. Middle and inner ear structure and auditory sensitivity have been studied in all five genera of the rodent family Heteromyidae. In the most xeric genera (Dipodomys and Microdipodops) the middle ears are greatly inflated, the tympano-ossicular system very efficient, the organ of Corti extremely modified, and low-frequency sensitivity extremely acute. ...Experimental data demonstrate that the low frequency sensitivity in Dipodomys is adaptive in predator avoidance."

"The selective pressure for these auditory modifications such as we see in heteromyids is no doubt especially strong for nocturnal species in a desert environment, where discontinuous vegetation allows litle natural cover and reduced food avail- ability requires that considerable time be given to foraging. In fact, similar modifications are found in several old world desert rodents (e.g., gerbils, jerboas, and the spring haas) and the African elephant shrews. There is also a fossil record of South American marsupials with greatly inflated middle ears. All these are small, desert-dwelling mammals. On the other hand, there are rodents with similar environmental problems which lack these auditory specializations, such as deer mice, pack rats, ground squirrels, and grasshopper mice. Auditory specialization is not the only way for such mammals to avoid over- predation. It is, however, an evolutionary strategy developed independently and successfully in several groups of small desert mammals. Among the heteromyids, each genus gives some clues as to this evolutionary process."