I have a premier 16 ls2 driving Premier 140s into Kef 104/2s. Just put new tubes in the 140 and I am again in audio nirvana. On great vinyl w my VPI Scoutmaster / Shelter 90x the 3d presentation and sound stage especially in the mid range with vocals, piano and violin is insane. Brings tears of joy to my heart. Everything is a keeper except I have to replace my 104s bought in 1987 at some point. Just got some Morrell tweeter replacements for the 104s to try out. Other than the 104/2 replacement I feel I am set for life.