New tubes or new preamp?

A set of good old stock tubes will change the presentation of your LS-15. I have tubed rolled a few LS-15 and LS-25 WITH VERY NICE RESULTS but if it is a major improvement you seek you should consider moving up to a better preamp of which there are many to look at.
Dennis
PrimeOne Media

Brrgrr, So far, I haven’t heard an amplifier that couldn’t be improved by upgrading the stock tubes. So, that might be enough for you; it frequently was for me - at least until I found and could afford a clearly superior amplifier. As a rule, I consider it highly advisable to seek out the right tube set for any amplifier.

Tube rolling can be chancy, expensive and frustrating; all of which become worthwhile once you find the right set. I tend to think of the manufacturer supplied tubes as a sort of blind date chosen for consensus appeal. I appreciate the effort, but only I am listening to my music with my system in my room.

Good advice all...I've recently upgrades my speakers to Magnepan 3.7's, and bought a Magtech amp. Still not getting the sweet sound I'd like. As I tried new tubes from ARC and still wasn't where I'd like to be, thought either a tube upgrade or a new tube pre might be the way to go..I can't audition, due to the fact there are no dealers anywhere near, so I"m looking for some guidance for those here who have listened to a lot of gear I can't.

I'm prepared to spend some money if the return is there, but want to make sure the difference in expense is worth it....
Thanks for your input...

When I had the LS15 I researched getting different tubes and was told by a few reputable dealers that the LS15 was not a good candidate for tube rolling, that the benefits would be minimal.