I haven't heard either amp on the speaker in question, but I once had a chance to compare the two amps on another speaker (the new Cheskey speaker) and I can tell you that the JL2 outperformed the Tenor by a huge marin. Most obvious was that despite the JL2s warmer sound (versus the Tenors slightly hard and forward sound - especially when pushed) the JL2 was far more transparent. Also the JL2 seemed to have MUCH more power, more so than the small difference in the specs would indicate. The Tenor sounded like it was clipping at modest levels - but perhaps it was just getting overly stressed out by the speaker load - although the speaker is supposedly easy to drive. Bass was also superior in the JL2 - but nobody ever bought an OTL for the bass! Some people thought that the Tenor had better highs - but I thought that it was a bit tinkly and that the JL2 actually had a more natural sound in the highs as well as everywhere else.
