Sorry. I am not sure I get this “comparison” issue. Firstly, anyone listening to any piece of equipment is comparing what they are hearing to everything they have listened to previously.
Experience counts.
I would love to know what benefit is derived from any comparison if the equipment reviewed is accurately described by someone with enough knowledge and experience to know what they are hearing and can provide enough information so others can have a good idea of what that equipment offers sound-wise and whether
or not it might be worth auditioning themselves.
or am I missing something here?