No address was changed - 9 BTC!
If those 9 BTC are exactly the remainder. (Eg. you had 10 BTC in your Armory, you sent 1 BTC to some addres, then those (remaining) 9 BTC were returned as "change = small coins" to
you.) Those new addres with 9 BTC should be under your control. What does Armory balance say to you? If it is 9 BTC then you are ok.
If you are unsure, post that "new" BTC addres here and we can check the transaction in blockchain.