I think blind testing is the only true preference testing. No one can actually remove the effect of preconceived ideas or bias, although lots of people on here claim they can. Another issue is that you have experience with your old system. This also contaminants testing.

Personally, I think we can figure out what we like when presented with blind tests of all new equipment.

Hopefully, you like the look of the equipment that sounds best to you. That’s also important.