the reason i have not commented on the primaluna is because i have not heard one. can't talk about what you haven't heard now, can you? but if this unit uses el34s, odds are it will be fine if the tubes are used correctly. the cable and source issue is another part of this whole thing but use the jumpers that come with the speakers and a single run of speaker cable. perhaps you should give me a call at the factory to discuss the whole system, be glad to help.
585 367 2390 from 10-ish to 6-ish dailey and est.
bobby at merlin