Mike, if the statement in the quote is true that the power output "for all practical purposes"(whatever that means)is "completely flat" from 20-20KHz, then they should have done the testing under the FTC regs for the full range and simply published it as a 20-20KHz rating(as is typically now done, for all but the lowest-cost units), rather than only at 1KHz, which is the "official" rating. The present "issue" about the power could have then easily been avoided.
Personally, the 1KHz rating in that quality of a unit doesn't create a significant issue, since the output at 20Hz typically wouldn't be more than about 5-10% lower than at 1KHz, which is a trivial difference.
