What is the opinion of Reddit about the
Koss Pro4S Full Size Studio Headphones, Black with Silver Trim?

Take a look at the Koss Pro4S. It’s the same price as the M40X ($100), has a balanced signature, & has more flexibility with cables since the headphones take in the common 3.5mm to 3.5mm cables on either side of the headphones

https://www.amazon.com/Koss-Pro4S-Studio-Headphones-Silver/dp/B00MCVOT48/ref=mp_s_a_1_1?dchild=1&keywords=koss+pro4s&qid=1607468403&sprefix=koss+pr&sr=8-1