After been used the AKG 240 for many years, I finally let that 240 model to rest. Tested many other headphones, both good and better, I finally found this K-712. At first, it felt too light and wobbly but after a short period I found it more and more comfortably, but it could have been a little bit more sturdy. The sound quality was from the beginning very good and I could hear more and more details then before with previous headphones, so I am still very pleased with this model. I think this one might be one of the most valuable in its class.