they are at my parents house so im not 100% of the rms but looking through them online i am pretty positive that the rms was 50-400 being the max. the id say budget is under 125 ideally if possible but i can definitely pay more if i had toI think the older ones had the red symbol on it right? Whats the RMS on those subs?
I think first things first you should tell us what your budget is. Then we can help you find some amps within that budget.