By some coincidence, OPs post is word for word identical to
this one from three months ago, which is also the same age as
This one, and
This one From January.
As for the product- it looks like useless trash. It advertises that it "improves audio quality" Which doesn't make any sense. It seems to be a mediocre software equalizer. Considering the alternatives- which includes the equalizer that is included in the drivers for pretty much any sound device, as well as additional options which include free, and even open source projects like
EqualizerAPO and
It's GUI, it's unclear what purpose or goal EqualizerPro achieves.
It is worth noting, that Probit Software, the company responsible for it, is an Internet Marketing Company. They also require you to provide them your E-mail address and Zip/Postal code for their "free trial".
Normally, I'd just report this sort of spam but doing a search brings up a lot of spammers talking about how great this product is and how it improves audio quality, which is complete and utter gibberish; not only does it not do that, but it hardly exceeds the equalizer features of windows itself, let alone any that can be found in the driver software for common audio devices. That sort of trash needs to be corrected and it seems like a good way of doing that is to provide a detailed reply about why it's nonsense at a forum that is already well-established on Google which will likely usurp the top results, especially for users investigating it's legitimacy.