The 52CX, however, supports a superior frequency of 61Hz-23kHz (versus 61Hz-25kHz). The 52CX also features a 12mm Neodymium silk dome multi-mount swivel-enabled tweeter, weather-resistant butyl rubber surrounds, and low-profile anti-resonant MaxxFitt titanium-chromed speaker frames. Priced at $44.99 per one speaker, the Hifonics Zeus ZXi 52CX is $15 cheaper than its formidable counterpart, the 5.2C.