Upgrade Tube Integrated or Buy Separate Pre-amp?

"Can I get something that's a HUGE step up from the Jolida for $1500, or would I have to go higher for that to be a slam dunk?"

Nobody can answer that question for you Nolitan. Getting the best sound possible out of a system involves so many variables it's almost mind boggling. You might relocate your speakers and get the type of results your looking for. On that subject, matching your speakers with the correct amp is about as critical as it gets. If you want to play complex music, your amp must be able to provide power on demand, and some speakers are much more demanding than others.

I'm sorry Nolitan, my response was intended for Meskandar.

Very fair point on the speakers question. I am using Triangle Comete XS speakers on sand filled stands. I've had them for years and love them. They are easy to drive, very fast, and believe should be able to do what I want when paired with the right electronics.

I was told by several sources that these speakers match very well with EL34 based tube amps (part of why I bought the Jolida). They are a good match I believe...just not getting the goods on complex music.

Meskandar if you know someone who does a little soldering the mods are not difficult. Here is a link that shows what needs to be done. It's for a 302, the mod would be virtually the same. http://www.audiocircle.com/index.php?topic=17354.0

If not see what a local tech would charge. I think Dave wrote the article a few years ago it was less than $120 in parts. More stuff could be added but it would get you most of the way there. You would probably be very happy.

Don't think about the preamp now. Just my advice. If you can have someone change the parts for you, it would be worth it. But if you need to send it in to have it done? You can also look for one that's modded to come up for sale.

The 302/502 are the same amps with different bias resistors. I have not looked at the 202 but I believe it is the same with different/smaller transformers? Good luck and as other said you won't know until you try.

I would suggest a different (and easy) test - try a different set of speakers. I like Triangle Comete speakers, but I doubt that anyone will describe them as bass slamming or ass kicking. They excel at exactly what you say they excel at: female voices and small instumental music.

Depending on your musical tastes, your room, your front end (analog or digital) and most importantly your ears; it's hard for any of us to conclusively advise you on how to proceed.

A new integrated amp - maybe. New speakers - maybe. Mod your Jolida - I would vote no. Any conversions will likely equal or exceed the value of the unit, and will severely lower the resale value. Better to replace, IMHO.