It's all in your head.
When 1 of 3 cited points of difference is kimber cable between socked and board of plugs, well, that's about as useful as when Sony advertised the Z7 as going up to 100,000Khz
(e.g.)Sony MDR Z7
Frequency Response (Hz)
4-100,000Hz
If a bottle nosed dolphin is the target then cool but we hear to 19Khz with science to back it up so that leaves an extra 81,000 Hz...that over 4x what is needed but hey..advertising.
So 1 copper chassis, more storage, and...the kimber cable are among stated differences. I am a Sony fanboy but I am not a ...whatever it's called when no driver or music is cited to make definitive assessments in an almost totally subjective hobby.
My cars both have systems over 15k and my home system is well towards doubling that. Spending money is fun. I get that part. I agree.