u mean XL's??? yeah but i think he did dat on da cactus amp which is 5k i believe, and also another thing i left out space is another problem i have, i got an f150 regular cab, i guess i can wall it but i dont know bout that, money is kinda tough, i will be selling my lvl 4 12s and some other amps i got in my garage to come up with the new subs,