its a mids and highs amp. most likely does 50-75 real watts a channel. Bottom tier garbage of earthquake, stick with their higher lines and stick with a monoblock. You want cheap you'll get cheap performance. Not sure what brands you have available to you in south africa but stick with the general mainstream brands of amps(alpine, kicker, JL, rockford fosgate) and stay clear away from crunch, boss, pyle, lanzar(non opti series) power acoustik, ssl, spl, autotek. you are only getting 100 true watts out of that crunch after accounting voltage drops and box rise. Might want to look into making a 1/4 wave Transmission line enclosure (t-line) if you dont have access to a lot of power. The enclosure can override the lack of power through efficiency.
If you want budget power thats not complete junk, then look for precision power black ice, ion or BA series. Or hifonics brutus, mb quart discus or onyx, soundstream TA, or older audiopipe apcls series. If you can find these where you live, then you are ahead of the game compared to all the others running the junk tier equipment.
When you are ready for a real system, try to get your hands on Digital designs, sundown audio, soundqubed/audioque, B2 audio, incriminator audio... etc their subs and amps will blow away every setup you can think possible. Their standard entry level lines can destroy an kicker L7 in both output and sound quality.