halltyler

Thanks for the commments! Looking forward to that crossover schematic, and I was planning on that exact stacking arrangement - good to know I was thinking along the right lines. Does DC resistance vary much from heresy to heresy?

I'm getting in another pair of heresies (thanks dean) and plan on running them both on the left channel in parallel and another pair of heresies on the right also in parallel. I'm going to drive the array 4 ohm array with quicksilver 60W monoblocks (these have 8417 tubes). Any one out there have any advice/experience with doing this sort of thing? Any thoughts - warnings - recommendations? I'm an electrical engineer, but don't work in audio and am just getting started with tube amps and good speakers....and there is a lot of great and knowledgeable people on this forum (i'm new to it too). Ii'm building my own pre-amp and phono stages.