| Utah 12" XC21 Driver [message #70608 is a reply to message #70606] |
Fri, 23 December 2011 20:44   |
spkrman57
Messages: 522
Registered: May 2009
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Illuminati (1st Degree) |
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Bill and Wayne,
I found those drivers to measure better than they sound!
I use the WT2 (not pro) they do measure nicely enough:
Qts .25, Fs 25Hz, Vas 8 cu ft and 94db/watt, Re 3.4 ohms, BL 11 Le 1.5 Mh.
These results are after testing approx 6 units and averaging the results. Some of the drivers were very close and I could tell when a driver or two measured away from the rest of them.
I plan to try a pair of these out in a scaled down K-horn for 12" which will be one of my playtoys to mess with this winter. I can take my time tweaking the system. I plan on using a high efficiency 8" or 10" cone driver to bridge from approx 300-400hz up to 1200hz to 1600hz with a compression driver from there up.
I would be curious if someone ran the T/S for the Utah XC21 that I listed above into Pi-align to see what cabinet it would come up with, I'm betting its ported and small with higher Fb than Fs.
Regards, Ron
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