Posted by Duke [ 208.98.184.1 ] on June 05, 2008 at 03:46:06:
In Reply to: Measurements posted by Akouo on June 03, 2008 at 14:13:33:
Hello Akouo,
Thanks!
I don't have any frequency response measurements online, sorry. I'm not sure that I'll be posting any either, because I look at the off-axis family of curves out to 90 degrees and most people would only look at the on-axis curve which is pretty good but nothing spectacular. Since virtually no one shows their off-axis curves, Earl Geddes being a notable exception, people don't realize how bad the average speaker is off-axis. So while my off-axis curves are much better than average, they probably still look worse than most people's expectation - so my marketing department is balking at the idea of posting them.
I do have an impedance curve for my Dream Makers online, and with any luck it appears below (link also below, just in case). Note that, aside from the bass impedance peaks, the impedance stays between 14.5 and 20 ohms, which means the tonal balance stays the same pretty much regardless of amplification type. The implication of the impedance peaks in the bass region is that the bass response is rather highly amplifier-dependent, but by changing the port length (it's user-adjustable) the bass response can be made compatible with a wide variety of amplifiers, as well as a wide variety of room acoustic conditions.
Hope this helps some!
Duke
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