I was trying to decide between the 6.3 and the Audio Physic Tempo IIIi that I eventual purchased. I spoke with the folks at both Pass Labs and Soliloquy about driving the 6.3 with the Aleph 30. They both thought it would be a great match in moderately sized room. They even calculated that the speaker would produce ~104 db in my 9'x 14' room. That is louder than I would ever listen. However, I opted for the delicacy and dynamic range of the IIIi over the fuller sound of the 6.3. Happy listening!!
