i would prefer a mono, but i can get good deals on two channels. i dont know what "keep the gains down means". and also, just wondering, if i wanted another of the same sub,... which amp would you reccomend?
Well, you have a dual 4 sub, so that means you have to wire it at 8 or 2 ohms, and since these amps are not 2 ohm stable bridged you will have to run it at 8, which means you have to get the OVR2-1200 even the OVR2-1600, due to the fact that the 1200 RMS rating is only 600 watts at 4ohms, meaning you will only get half of that, the 1600 is 800 rms at 4ohms, so the sub will only see 400 watts rms.
no, unless you have a dual 2 ohm sub, but you said you have a dual 4, if you buy another one then you can run each sub in series then wire them in parallel and you get your 4 ohm load for the the OV2-520.
230 RMS and 410 max per sub, I doubt if it you will ever get anything over 230 with this amp. You can get this amp for 125.00 and get the 1200 for like 160.00