Rockford prime 500x1d or Kicker zx500.1

[Jlewis1]

Was wondering if my older mint condition kicker zx500.1 will be more efficient(sound better I guess) than my Rockford prime 500x1d amp.The kicker is 250x1@4 ohm and Rockford is 300x1@ 4 ohm? I have a Jl 12w1v3 sealed and built to exact specs for the subwoofer

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[kr15 5,000+ posts]

The zx line is a little better than Prime...but i doubt there will be any noticable difference