I have a 2015 SGS, And I only plan on doing a fairing budget upgrade. No plans for any more speakers in the future. Just want a little bit more than stock. I'm keeping the hu. My plan is a CVB52, amp and either the kappa's or DB 652's. which do you think is the better option ? My riding is mostly under 70. Not worried about FM reception it is already shot from running led bulbs in my stock headlight. Thanks for any input.