"My 12 watt P/P KingKo KA-101 delivered very quickly, 9 days after it was ordered. Just picked it up from the post office. Initial impressions tonight."
Looking forward to your findings. I have a number of amps including a Yaqin (Chinese) tube amp that is also based on the EL-84, 12w x 12w, 3 inputs, headphone jack and excellent build quality. It sells for around $500. It's not tube rectified, however, so may not be apples to apples but close. A positive finding with the KingKo may be enough for me to pull the trigger on the Tekton Double Impacts.
PS: Genelex and Mullard (both reissues) EL-84s are available at a reasonable cost and could be a worthwhile tube roll.