Scutey
Headphoneus Supremus
I already have the 6N6P-i as power tubes.
You said the 6N6P-ir are more laid back than the 6N6P-i, right?
If so, I will try to get some...
I'm loving the Mullard's so far. The Highs are tamed but lush. They give a bit more punch. Overall a more "organic" sound. They go really well with the Beyer's...
I've some 6HM5 EC900 EI Yugoslavia on the way,too. What do think about these? Got them quite cheap to give them a try...
Any other suggestions for Power Tubes?
No, it was the 6N6P that are a bit more laid back (slightly warmer),it's the 6N6P-IR, they are just a bit more dynamic, slightly cooler, a bit more detail and attack, we are only talking small amounts btw, not a night and day difference, imo they are the best of the 6n6 type, not including the 6H30DR which I doubt I will ever try!.
Those 6HM5 are a great tube, musical, detailed, good tight base, good soundstage and dead quiet, again just my opinion of course but, apart from the C3G (expensive) the best tube you can get for the LD, another worth trying the M8161, and although I've not tried it myself the tung sol gets a lot of love on Head-Fi, another cheap option is the GE JAN5654W. Hope this helps