This is a matched quartet of JJ 7027A power tubes brand new in box. You will not be disappointed, these tubes are legit. I have not tested these because they are NOS NIB so there’s no need. Matched by tube depot. Rated 15 by them whatever that means. I do not have an amplifier that runs these tubes but I can throw them on my tube tester (Jackson 648) upon request. However this is a brand new matched set and I do not see the need to do so…