Without casting aspersions on the Gemsound name, it sounds as if the speaker in question doesn’t measure up to the rating on the name plate.
Without making political pronouncements, this is one of the results of deregulation. In the 60's specifications were almost meaningless. In the 70's things tightened up a lot with a push for truth in advertising. A FTC amplifier rating was established that was very meaningful. If an amp was rated at 100 watts, with some impedance matching you could light a 100 watt lightbulb with it. The power was there and the bandwidth had to be stated along with the distortion spec.
During the push for deregulation, certain companies with novel or new designs pointed out the FTC spec unfairly penalized them. Instead of adapting the old spec to new technologies, the baby was thrown out with the bath water. Today, a watt in connection with audio gear can be almost meaningless. Yet it has a very precise meaning in physics. Seven hundred forty-six watts equal one horsepower. Yet some manufacturers will fiddle with the numbers by over a factor of ten.
There are specs known as PEPO or Peak Envelope Power Output, Music Power, EIA and FTC power. Each in turn is a more restrictive of fudging. Speakers are rated by playing pink noise (all frequencies simultaneously) for 24 hours without damage. My guess is that Gemsound does not adhere to that spec and cuts some corners. Just imagine if there was no standard pound or quart. Well let me go to Raley’s rather than 7-11 they have a real quart of milk. How’d ya like to try to figure out milage with every station having a different gallon? Most of the above deals with amplifier specifications but be assured that speaker specs have been distorted with equal abandon.
That is the situation we have today. The only assurance is the quality of the company. It is the wild wild west and you are on your own bunky....but really, Gemsound has a less than stellar reputation.
It is the tried & true, you get what you pay for.