Aaah. Interesting! I too plan on moving up to the XLs from Ascend CBM 170s. What do you think the primary difference in sound will be? I also use putty and wonder what the best way to anchor the XLs to stands would be? Don't really want my dog knocking them over!
ajayrav,
Have you ordered your Sapphire's yet or are you waiting for my
comparative review?

The Ascend Acoustic CBM-170s are very nice
speakers, and I've enjoyed them in my system for a couple of years
now. I've recently moved from Rotel/Parasound/AMC electronics to a
Van Alstine dominated system and experienced dramatic (dare I say
stunning) improvements in the quality of the sound. These
improvements from electronics set me to wondering what I might be able
to hear from more refined speakers. Besides, it seems silly to be
using several thousand dollars worth of electronics to drive $330
loudspeakers, so I went shopping. I have an "intimate" listening
space, so I focused on monitors rather than floorstanders, considering
offerings from Biro, Onix, Mobile Fidelity, Usher and Elac as well as
the Sapphire XLs. I settled on the Sapphires after getting a sense
from the several reviews available that they're profoundly accurate
and capable of playing anything with ease. Besides they look great
and are produced by folks who are practically my neighbors.
How will the CBM-170s compare to the Sapphire XLs? I don't know.
Perhaps there'll be more detail and an ability to handle highly
complex, dynamic, music without becoming a bit muddled as the CBM-170s
do. The CBM-170s exhibit a surprising amount of cabinet vibration.
At almost twice the weight in a similar sized package, I expect the
Sapphires to be much "stiller." I don't know what the audible impact
of this difference will be, but one would think that it would favor
the Sapphires. Looking at the numbers, the Sapphires are somewhat
less efficient, but that's not a problem for me; I've got power to
spare. This is all speculation, I can hardly wait to begin finding
out what these speakers can do. I check my email each day, with
fingers crossed, for the news that my Sapphires have been shipped.