Jolida JD-100A Tube Rolling

Russ, Detail and warmth are sort of competetitive - its tough to get both in any piece of equipment, including tubes, especially at any nominal expense. I'm not familar with your electronics, but I use 12ax7's in 2 of my DAC's and in one of my pre amps - I have found the cleanest new production tube available is the Yugo EI. The only caveat is that some can be noisy. The good news is they are very cheap so you can buy a few extra in case you get a noisy one or two. Just something to research further if the Sylvania's don't do it for you.

Thanks Newbee. The Jolida is my first piece of tubed gear. I'm trying to do the HT/HiFi thing with more of a slant toward the HiFi. I have a B&K Ref 50, B&K 200.5 Amp, Philips DVD-963SA(unmodded), Klipsch Center and Sub for the HT, Spica TC-50's L/R and the Jolida. I'll take a look for the Yugo EI's. Being that I'm all SS except for the Jolida may have something to do with the atypical results I got from the GE 5751 triple micas.

I have tried several tubes in my Jolida. My conclusion is, that tubes, like every other component, are system dependent. You may need/want improvement in areas where I do not, or vice versa.

So heres my thoughts so far.....

Stock 12ax7s - Laid back, very warm, works well in an analytical system (like mine), acceptable bass, not the most leading edge detail (attack).

EI 12ax7s - once warmed up these have a much less forward sounding midrange, especially female vocals, extended highs, acceptable bass, nice attack. Might work well in a warmer sounding system.

EH 12ax7s - very well balanced tonally, acceptable bass, more highs than the stock, and more attack in the midrange, and less in the midbass, particularly with percussion. Deep and wide soundstage.

Sovtek 12ax7LPS - tonally balanced, deep authoritative bass, extended highs without too much aggression. Good soundstage. Good leading edge attack.

RCA Blackplate 5751s - Tonally balanced, nice attack, acceptable bass, a little grainy but plenty of inner detail.

GE JAN 5751s - Lots of bass, edgy and grainy. Not good for my system.

I am yet to try.....Sylvania Blackplate 5751s, Sovtek 12ax7WAs, and the Svetlana 12ax7s.

Currently I using the Sovtek LPSs, they are fairly new in the player. So far I am liking them in my system. The EH worked darned well too. The stock tubes, once warmed well, werent that bad either.

Here are a few links for new production tubes sales...
The Tube Store
Boi Audio Works

How does the Jolida compare to the Phillips? I am considering upgrading my Sony DVD/SACD player. The jolida kills my cheap sony with redbook FWIW.

Good luck.