A tade more briteness - Jolida 302b. Tubes?

You can DEFINITELY add more sparkle to the Jolida 302B.

First, you REALLY have to upgrade the tubes. I recommend JJ Blue Glass E34L, and Ei 12AX7/12AU7 tubes. Others seem to also like the JJ 12AX7/12AU7.

And, I certainly agree with Howard (Boa2) on cabling. In my experience, HomeGrown Audio Silver Lace is a most wonderful cable. It's engaging, without being harsh. Bass is also of note.

I've never heard the tyler speakers... But in general, an EL34 amp is a midrange amp. Cables and tubes are "tweaks" as far as I'm concerned, and shouldn't be relied on as tone controls. You might just be experiencing the limitation of the Jolida integrated amp, which is a midrange champ, but not a frequency extension champ. Try borrowing a Simaudio power amp (or another good SS amp) and use your Jolida as a preamp. See if this changes the tonal balance to your liking.

Goatwuss, the Jolida can't be used as a preamp, since it needs a constant load on the outputs. From my own experience I can say that the Jolida is limited by its stock chines tubes. Changing the input ones to other, current production or NOS tubes makes a big difference.

Rene

Cables and tubes are "tweaks" as far as I'm concerned, and shouldn't be relied on as tone controls.

Man, is this a tiresome refrain, and one that has no application in this instance. You are not looking to change the tone. You are looking for high frequency access. The information is there, on the source disc, and experimenting with cables/tubes in your situation will absolutely yield the result you want. End of story.

Completely agree c Trelja. I have Ei EL34 & Ei 12AU7. I found them extremely good and reliable for the money and have the extended highs you are looking for if you are not into NOS.