I'm glad I found this thread. I decided to try the HP-32 since a guy said they had more sub-bass than the VE Monks, and it was true. However the HP-32 besides having more sub-bass is less warm overall with sharper highs and more air. I'm wondering about the higher impedance ones, do they change the signature ? or it's just for matching with more powerful amps ? I'm particularly interested in even more sub-bass and more refined highs (right now I have to use the thick foam, which makes it less sharp but a little bit muddy). Anyway I considered one of the 150 ohm versions which is a good match for my amp, 320 ohm could work but maybe not as well and it's more expensive also.