Answers: add both the RMS up to find a total
whatever the total is
find a mono amp specifically good at 4-ohms for the total RMS
or achieve the 2-ohm version and do one and the same but have it run at 2-ohm
the 2-ohm is easier to find to suit your subs
Those subs are 750 watts peak and 250 watts RMS which finances u would want an amp that put out around 500 watts rms at 2 ohms brigded and the subs wired in parallel.
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