[Lord Gothmog]

An interesting theory. However, I must point out that the Rings were not made for the Dwarves nor for the ensnaring of the Dwarves. They were in fact made by the Elves of Eregion for the Elves of Eregion. All of the rings made under the gaze of Sauron were tainted, only the three most powerful made by Celebrimbor alone and without the knowledge of Sauron were un-tainted. Sauron, when he found that they could not control the Elves demanded the rings and when they were not given up he took by force all that he could find. He then gave Seven to the Dwarves and Nine to Men.

If the Seven that he gave to the Dwarves were more powerful than those he gave to Men, then this would be due to their being made after the ones given to Men and not because they had been made stronger to have more effect on Dwarves.

While it is possible that the Ring of Khazad-dum did have some influence on the awakening of the Balrog, you must remember that the reason the Rings of Power were made in the first place was the domination of the Elves and their use in Men and Dwarves was simply Sauron not wishing to completely waste the effort of getting the Elves to make them and his making of the One Ring.