And lots of people around here will vouch for HAL (Rich). Great guy. By the way, I had the buffer on the LS9's, and though a bit more detailed than the original (probably the tube rather than the unit) I preferred the original pre as I thought it had better dynamics. Like Rich, I have both.
And one more thing, Rich may disagree with my thoughts. If so, follow his advice rather than mine. The guy has hearing like a bat.