ok first of all this isn't going in my evo, it's for my surround sound in my room... i have an old Technics 120v amp that's putting out 60w and on the back it says to use with speakers at least 4 ohms..... i also have a 12 inch box with an old lightning audio sub that blew after like 5 years... on top of that i have a kicker 10" dual voice coil (rated at 250 rms per voice coil) speaker that i've had just as long but has been in my garage... my question is, should i buy a box for the 10" speaker and run it in series, or buy a new 12" and how many ohms.... i'm not sure how many ohms the sub in the box is rated at but i remember that if i turned the volume up too high, the sub would cut out and it would take a bit for it to come back on.. i'm trying to find a happy medium between decent bass and affordability. thanks in advance for your help.