many thanks. I was going to pick up a pair of used PS Audio BHK 300 monoblocks used then got cold feet when the seller did not know how old they were and the serial numbers were non-sequential. So I ordered a brand new pair from P SAudio and traded in one of my amps in my collection. Glad to know I should be OK with 15a lines.
@jaymark Any time and congratulations! Bascom King's designs are so well-regarded that you can't go wrong, especially since these ended up on many "best of" lists.
You may also enjoy the tube rolling threads on PS Audio's forums: PS Audio - BHK 250 / 300 Tube Rolling Thread
Something really nice about the BHK amps is that they accept the 6922 variants without any special configuration. Bascom replied on one of the PS Audio threads and recommended the Tungsram PCC88, but it's a very laid-back tube. I went on a tube binge and have tried ~15-20 different sets, so let me know if you'd like any tube suggestions. I also had a positive improvement from Acme's silver ceramic fuses, which were ~$130 per amp for the set of 6.
Hope to hear your impressions after you're able to set your new monoblocks up!