hitncry
+1y
1st off there is no way that an amp that is $106 is actually putting out that kind of power.
You have Alpine R-type subs with a ridged rubber surround then they are rated at 500watts RMS. If they are the R-types with the smooth rubber surround then they are 300watts RMS
So you're going to want an amp that has either 600watts RMS or 1000watts RMS(NOT PEAK/MAX POWER).
It's ok to go with an amp that Has more RMS power than recommended because it's not necessarily too much power that will burn out a speaker. It's distortion from a lack of power that will harm your subs and cause them to have a short life span.
In your case I would also recommend going with a 1ch mono block amp instead of a 2ch amp like you're looking at. A mono amp will most often give you max power at a 2ohm load, which is how you would want to wire you're 2 subs in peticular. By running each sub in series to itself and then running the 2 subs in parallel together. You can't bridge a mono amp so it will accept the 2ohm load you show it. Most 2ch amps can't handle a bridged 2ohm load esp. if they cost $106.
My personal opinion would be to save you money and hook your nice subs up properly the 1st time without worry. Or buy some cheep dual 4ohm subs to go along with the amp you're looking at.
A TRUE 1600watt RMS amp will run you around $700-900. For your subs I'd plan on spending $350-550.