Question about Hifonics Maxximus MXZ12DUAL

Basically not. You need all the necessary cables, power, cinch, earth cables etc., an amplifier (power amplifier) and the subwoofer box. You can also use interference suppression filters and capacitors, but also a preamplifier, but all this is not absolutely necessary. Whether you can achieve a good sound without these additional parts can unfortunately only be judged subjectively.