you can always upgrade amps later in the game with the XLs, but it will be more pricey to upgrade subs later in the future *i have both 2 lvl 4 15s with lvl 5 coils and 2 lvl 4XL 15s, and the XLs are just crazy louder* i just say get better, break them in with 1000 rms then upgrade in the future !