i am currently running a JL 1400-D monoblock (i think its likw 500Wx1) to a 12" solobaric L7. its putting a good amount of power out but i was thinking of upgrading to a Zapco i-600 or 750 because i think it might sound better (heard L7 loves power). any input on this? should i change it or am i better off staying with my JL? i already have a HU (alpine 9856) and zapco components and zapco amps for components. thanks for any advice.