The MX6 also features a ¾” pure titanium dome tweeter, a fiberglass reinforced anti-resonant injection molded speaker frame, moisture-resistant rubber surrounds, and UV protected ABS grilles. In addition, it should be noted that Hifonics describes the MX6 and MX6C as offering “best in class performance with minimal extra feature content.” Essentially, the MX6 (along with its cousin, the MX6C) have been configured to output incredible power without too many additional features, thereby keeping its price low and affordable. In fact, the 600w, Hifonics Mercury MX6 is priced at $69.99, only $10-$20 greater than its weaker 300w-400w counterparts in the Hifonics ZXi series.