my Logitech Z-5500 Subwoofer orignal Woofer 10inch already blown to playing louder subwoofer max and volume 70% and 80% already blown woofer 10inch

compare orignal logitech 10inch vs kicker 15inch now logitech 10inch woofer i set sub max and volume 4 bar half not 70% so normail sound bass not much louder so kicker 15inch i set sub max and volume 4 bar i see abit louder more bass then orignal logitech woofer 10inch so i set volume 70% sub max orignal logitech woofer i seen louder and kicker 15inch i set 70% volume and sub max i see more louder damm and more bass very superb then orignal logitech woofer 10inch and orignal logitech woofer 10inch i set volume full i seen louder and kicker 15inch i belum try set volume full for kicker 15inch i think will be more more louder then orignal logitech woofer 10inch next time my house no people i will try volume full for my kicker 15inch 
that i set subwoofer max and volume 70% more louder more bass very clear very clean
stilll no distortion bass but the bass louder very clean and very clear and smooter
bass is very superb and louder bass superb

i am very very happy hehe very nice a lot bass
Kicker Comp 15inch 8ohm connected Z5500 amp lol but amp still hot a lot coz wire + and wire - mixed connected z5500 amp 

i need open woofer to make corection like woofer wired - connect wire - amp and woofer wire + connect wire + amp so be safe
i bought kicker comp 15 8ohm and 14 AWG Blue Speaker Wire longer cable 20 feet

so i dont have Enclosure box so need make Enclosure Box too
so i go car audio shop to make Enclosure Box
then he connected wired - and + inside Enclosure Box too very short
that he give Purple wired cable too very short
so i make Purple wired cable to join blue wired cable 

Here Picture