I'm trying to get a Ampeg B-15N tone from an amp that will go louder (much louder) than the portaflex can. I've tried all the major brands over the years only to find recently that the sealed cabinet is the key. Unfortunately in the town I live in the only sealed cabinet available is the Fender 4x10. It sounds good but I'm wondering about others. I know all the Bergie NV series owners will say their's is the best but I can't justify $1000 for a cabinet. Maybe half that. I've got an Avatar B212 that I can put under it but I'm wondering which between the GK SBX 410 and the Fender sounds better for this type of tone. Opinions?