I have a Crate BH220 bass head, and I play it out of 2 Carvin 4x10s. At 8ohms I am pushing about 150 watts. Was thinking about getting a new bass head but was doing some research first. These are the approximate value for watts to decibels: 200w = 53dbw 500w = 56dbw 1000w = 60dbw With this being said, and assuming that my cabinets can handle 1000w (which they cannot), is there really that much of a difference in loudness and cut thru from 200w to 1000w for a 7dbw increase? Reason I ask is my stack is not mic'd or XLR connected to the PA we use in medium size venues, and is struggling to cut thru on my 1000w (500w x2) PA, in which we mic our leads 100w amp, and our rhythm (acoustic) plays straight thru the PA.