Re: Sierra-2 Development Thread
Originally Posted by
ConcreteRooster
Reviving and oldish thread, hope no one minds... I skimmed over this thread, but didn't see any info about the crossover design of the Sierra-2. For example, crossover frequency, kind of slopes used, etc. Just curious, though I understand this might be the kind of thing Dave doesn't want to share.
Another curiosity, if it's possible: do you happen to have impulse response and/or step response graphs for the Sierra-2? See
Measuring Loudspeakers, Part Two (John Atkinson,
Stereophile, Dec 14, 1998).
I've had my eye on these for a while now. The application would be nearfield desktop speakers. It's a 60-inch wide desk, and I sit about three to four feet from each speaker. I saw at least one other thread on this forum where someone asked about such an application for the Sierra-2, and the feedback was positive (sorry, don't have the link handy). I'm thinking that time and phase coherency are particularly important in a nearfield application like this, hence the questions about impulse and step response---which speak to driver integration. I'm currently using single full-range drivers (Markaudio Alpair 7.3) for this application, where one of the main advantages is that driver integration is a non-issue. And at least as far as what I've read on the Internet (caveat emptor!), ideal time and phase alignment leads to exceptional imaging.
Thanks!
Have you looked at the Measurements page of the Sierra-2 product pages in the loudspeakers section of the Ascend website? Not sure if the items you are asking about are included there or not. I am sure there are proprietary design parameters which Dave would not want to publish. I know that Ascend shut down for their annual summer holiday and I'm not sure when they will reopen, but it must be soon.
If you email Ascend with your questions they will get back to you, but I'm sure they have a few emails to get through once they are back in office.
Ed
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