Federal Rule of Civil Procedure 11 prohibts the filing of lawsuits that are "presented for any improper purpose, such as to harass, cause unnecessary delay, or needlessly increase the cost of litigation" and requires that "the claims, defenses, and other legal contentions are warranted by existing law or by a nonfrivolous argument for extending, modifying, or reversing existing law or for establishing new law." In other words, there needs to be some good faith basis for the claims presented in the suit. If the purpose of the suit is purely retaliatory, Behringer would be subject to Rule 11 sanctions.
Correct.
...but the odds that Peavey ISN'T violating standards are pretty low.
Violating FCC emissions standards is blindingly common, as is lying and throwing compliance stickers on products which have never been tested.
PC power supplies coming out of China are notoriously bad.