I have 2 soundqubed hds210d4. They have two inputs on the subs. i don't know how to wire that up. I also need to know what kind of amp I should buy. I don't have much budget about 150. I was looking at a planet audio 4000 watt mono or a cadence 2400 watt. I know that's peak power the RMS on the planet audio at 4 ohm was 1100 I believe. The cadence is 600 at 4 ohm. The subs are 600 RMS 1200 max. Do I need a mono amp or a 2 channel or what? I'm new to audio so all help is appreciated.