Sounds like an amazing setup!!! Yes, i would imagine you need more current/power to drive the Q3...very tough impedance load down low...3 ohms or lower, as i recall from reading about them.
i have not heard Lamm...only read quite a bit about them. Sounds like the purity of tonality combined with extension and power is a unique and rare combination they deliver. FYI (in case you're curious), Gryphon is probably a similar rare mix, with slightly greater emphasis on power, given it is SS Class A 100 watts (doubling all the way down to 0.5 ohm load and doubling again for peak dynamics...so 4,000watts/0.5 ohm load).
I have read the Lamm 1.2 Ref probably edges out the Gryphon on purity of tone (Jeff Fritz)...enjoy!