of course pegasus.many ppl choose helix because it's a old and known brand.
a known brand comp is not means good if the installation and tuning is bad.
im a pegasus comp set user and i feel that PG162P perform a better SQ performance with the same price range of Helix series.just my 2 cents.

i dunno the how much for the 12" sub.but i had did survey for the 10" sub becoz im also interest to install it later.last time sound quest is quote me rm300++ for the 10"sub+woofer box.Then i ask another acc shop KT Lim,he quote me rm180+rm180=rm360 for 10" sub + enclosure.I think is cheaper than SQ lah.So im wonder want to buy it in KT Lim then give SQ to install or not,because their installation abd tuning skill is reputated.