Susurus
Resolution:6.62×10^-34
Okay. How about a new thread instead of my usual total hijack, call it
Intentional Assymetry in Driver Baffle Placement.
Yes, there are some papers with calculations for the ideal open baffle dimensions for specific drivers' specs.
That may explain in part the sound of my DQ-10's.
I do recall that the worst you can do is mount a round driver in the center of a round baffle. The edge reflections [correction- wavelength cancellations, thanks Nakdoc] are at maximum (very bad). :yuck:
Interesting to note which companies resisted the more symmetric look (an easier sell :yes
and decided on the sonically superior offset or off-center (both axes) for the woofer. True whether OB or closed box, BTW.
Woofer in bass cab offset but not mirrored:
Scott
Magnat (larger ones like 10P all-ribbon, not 6P)
Dahlquist DQ-10, not upright 20 or 12
? Infinity, Rectilinear, ...
And trapezoidal is a good solution to the edge effects!
Carver Amazings, open baffle on a large scale I haven't really got working right but others like them.
Apogee Duettas, love to hear those.
Would some of the placement issues abate if I modified my MG-IIc's to trapezoidal? Some people add little wing-things. But I'm more likely to start hacking away on a perfectly good set of planars...
Intentional Assymetry in Driver Baffle Placement.
Your close, its more to keep the back wave from canceling out the front wave and removing all bass response. I'm sure there are parameters to OB, i do not have them. The bigger the board the better bass response. You also want to slightly offset the hole from center.
Search the web for "open baffle speaker design" or the such, gobs of info out there.
http://members.myactv.net/~je2a3/open.htm
This kind of design seems to work well (that little board center top seems to be important on many designs)...
Yes, there are some papers with calculations for the ideal open baffle dimensions for specific drivers' specs.
That may explain in part the sound of my DQ-10's.
I do recall that the worst you can do is mount a round driver in the center of a round baffle. The edge reflections [correction- wavelength cancellations, thanks Nakdoc] are at maximum (very bad). :yuck:
Interesting to note which companies resisted the more symmetric look (an easier sell :yes
and decided on the sonically superior offset or off-center (both axes) for the woofer. True whether OB or closed box, BTW. Woofer in bass cab offset but not mirrored:
Scott
Magnat (larger ones like 10P all-ribbon, not 6P)
Dahlquist DQ-10, not upright 20 or 12
? Infinity, Rectilinear, ...
And trapezoidal is a good solution to the edge effects!
Carver Amazings, open baffle on a large scale I haven't really got working right but others like them.
Apogee Duettas, love to hear those.
Would some of the placement issues abate if I modified my MG-IIc's to trapezoidal? Some people add little wing-things. But I'm more likely to start hacking away on a perfectly good set of planars...
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