Well then you know what? You, as the customer, get the benefit of the doubt. Axiom ought to allow you to trade up from your 175v3 to the 125v4. Andrew has said the 125v4 bats as hard as the 175v3! I have two in cherry chestnut and love them.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated