I am going to look at a Henry the 8x8 today. I have always like the sound these have, but the low spl is worrying me. I currently play a YBA 200 through a 4x10 Trace Elliot. If more is needed, I will add a 1x15 Trace. With the YBA lack of headroom (although plenty loud) I am worried that if the 8x8 is much less effecient that the TEs, then I may not be loud enough anymore. Anyone have any SPLs for the trace cabs? 4x10 is the standard one everyone is familiar with (red lines around the port) and I believe the 15 to be pregibson (round ports through the grill.) Are TEs known to be effecient? Anyone have any opinions or info for me? thanks in advance.