Hi Bh. Yesterday I tried a nice hypex-based amp built by Chris Hoff of BPT, at 150 wpc. Chris and I compared the INT-30A to the Hypex running off the pre-section of the INT-30A. As expected, the Hypex combo seemed to have better control of the lows, while the Pass alone was perhaps more relaxed through the highs, though except for the lows, not a ton to choose between them. Overall, I would say our impressions confirmed the general sentiment that Gallos could do with a bit of power. Additionally, it might make sense to try the Gallo bass amp, esp. if you can audition one returnable.
Another observation is that the Gallo's could benefit from a bit more height: I'd consider some after market or homebrew stands to raise them up a bit.
Finally, although I seldom listen to this kind of music, the Gallos soundstaging and imaging really shine on large scale classical. Really remarkable, esp. considering their tiny size.
John