im ordering ssd12's and i dont know wat to pick between standard or h qts.. i have no idea wat it means, so if anyone knows please tell me. thanks

Are you going to run them exclusively sealed or ported? Only pick High QTS if you want to run it sealed only.

Also no need to make two different threads.

What. It's spelled what.

As Julian said, it depends on what enclosure you intend to use. If you are strictly using them in a sealed enclosure, the high Qts option might be necessary. If you plan to use them ported then don't purchase the High Qts option.