does anyone have any experience with the discus series (dsf 216) i bought them 2 months ago the problem i have is that when i tun the volume up sometimes one of the tweters die the amp pushing them is an orion 4004 and it barely at half gain, they are conected to the front channels and the back channel have 2 4-way speakers so my question is: should i turn the gain down a little more ? or is it that this components are just weak?