Ascend Acoustics Sierra-1s VS ACI Sapphire XLs


Howdy!
I've got upgraditis! I just finished a major hot-rod restoration of a vinatge Fisher 500c, and at 35 watts of push-pull tube power, it's just a bit anemic for driving my current speakers- Vandersteen 2ce's. So I'm intrigued about what experience any of you might have with either of the above monitors. Especially if either has been driven with a lower powered tube amp. The new Sierra is close to the price of a used pair of Sapphire XLs, but honestly I haven't had the chance to hear either in person.
Thanks for the help!
Lincoln
lincnabby
ACI is closing its doors and offering no more warranty or support. http://www.audioc.com/aboutaci1/news.htm

There are people running Sierra 1s on tubes of that size or less.
http://forum.ascendacoustics.com/showthread.php?t=3245

http://forum.ascendacoustics.com/showthread.php?t=3383

Dave Fabrikant of Ascend is the best one to discuss the suitability of Sierra 1s and your amp with.
Thanks Newbie! I was aware of ACI's closure, but have heard so many great things about the Sapphire XLs. But I will try to get in touch with Dave at Ascend. Thank you for the info!
I do own both currently, and drive them both with solid state so I can't comment on how they sound with tubes. But I will say that I do prefer the Sapphire XLs to the Sierras.