i have 3 jl audio 12W6v2-D4 there Dual 4 ohm speakers(dont really know what this means) i had them installed at a local jl authroized dealer i had a 3000watt power acostik amp on it installer told that the speakers where wire to 1ohm.
Since power acostik seem to kick out less power the they say what would be the best amp for these speakers
