Why does my tube amp

Measurements are hopefully facts and facts are always your friend.

There can be a strong case made to never buy anything that has not been thoroughly measured by an independent source prior. Specs are helpful for narrowing down choices but seldom tell the whole story. Then there is always just trial and error. Yuck. Takes forever and can be quite expensive. Deaelers might like it though cause you buy more stuff until you find teh right combo that is just meant to work and sound great together. When they do, there is usually a reason and teh measurements may be the only way to truly know why.

Mapman...my Jolida is well built, reliable, and no clue how long it will last but it works like new after 3 years of abuse...uh use...Jolida MD is the only Jolida that matters (Mike Allan is there, and he started the thing).

Wolf, which Jolida model is that?

I'm not proud. I will take any plunge that I can afford if it seems to make sense. The more I can afford it, the better. :^)

The interface between the amp and speaker is what makes for a good combination. Its not always the case that transistors can drive any speaker made and do the job correctly.

It may simply be that your speaker is designed to work with tubes and to take advantage of their characteristics (for example even though it is a 4 ohm load there may be a substantial impedance peak in the bass that transistors can't drive).

There are some very good reasons that there are still tube amps being made all over the world half a century after they were declaired obsolete! IOW you don't have to know anything about electronics if you understand this simple fact. In the meantime enjoy the music...

502p amp...when I bought it I wanted something with at least 50 watts pc, and balanced (or at least XLR...this amp isn't truly balanced but I use XLRs because I like them) inputs as my preamp allowed for that. Very few tube power amps exist in this price range, so I bought it with "factory upgrades" and it still was around 1200 bucks or something (prices went up a bit in the last 3 years). It responds well to every tube roll I've tossed at it including the massive KT150s that are in it now, and its 65 watts per side seem to be more than enough for my purposes. A really snappy accurate sounding modern tube amp with that harmonically sweet tone I seem to need.