John Culter
100+ Head-Fier
I'm about to order A12/A10 or U12/U10 .. Are there any measurements available around? According to the quick description on the 1964 website it is hard to tell what is the sound signature of those flagships. Which one should be 'more reference' ?
Also wondering if there is any sound difference between A and U models. When the signature is not what the person is looking for, then the U model is much easier to sell

Also wondering if there is any sound difference between A and U models. When the signature is not what the person is looking for, then the U model is much easier to sell