I have a reduced copy of this cab, but is too faded to read enough of the dims .
Fortunately, the factory measured specs as well as some Madisound suggested alignments are still legible enough, so you can either build one of them or use a speaker program to find other alignments.
Unfortunately, I can't do anything with this borrowed computer other than to post the info and try them in an on-line calculator:
60 L, 31 Hz Fb = 3" dia. x 7.8" L. vent
90 L, 27 Hz Fb = 3" dia. x 7.4" L. vent
110 L, 25 Hz Fb = 3" dia. x 6.33" L. vent
basic specs:
32 Hz Fs
0.303 Qts
59.61 L Vas
3.5 mm Xmax
16.737 cm eff. dia.
Plugging these into this calculator yields a much smaller ~29 L net cab tuned to ~40 Hz though, so plenty of tuning flexibility: mh-audio.nl - Vented System
GM
Fortunately, the factory measured specs as well as some Madisound suggested alignments are still legible enough, so you can either build one of them or use a speaker program to find other alignments.
Unfortunately, I can't do anything with this borrowed computer other than to post the info and try them in an on-line calculator:
60 L, 31 Hz Fb = 3" dia. x 7.8" L. vent
90 L, 27 Hz Fb = 3" dia. x 7.4" L. vent
110 L, 25 Hz Fb = 3" dia. x 6.33" L. vent
basic specs:
32 Hz Fs
0.303 Qts
59.61 L Vas
3.5 mm Xmax
16.737 cm eff. dia.
Plugging these into this calculator yields a much smaller ~29 L net cab tuned to ~40 Hz though, so plenty of tuning flexibility: mh-audio.nl - Vented System
GM
As we can see, one of the specs (with the best resolution) is dated Jan 2000 so it appears be too new for Steve´s kit.
One the other hand, such old suspensions should be measured after some low frequency massage.
I have some late -80 17w75xl/esotec and they still sound good.
One the other hand, such old suspensions should be measured after some low frequency massage.
I have some late -80 17w75xl/esotec and they still sound good.
Hi 900seca
Few years ago, I received directly from Dynaudio schematics in PDF format for XENNON 3
I just do not know how to join PDF file in this tread so feel free to contact me on P.M.
http://www.diyaudio.com/forums/members/900seca.html
Few years ago, I received directly from Dynaudio schematics in PDF format for XENNON 3
I just do not know how to join PDF file in this tread so feel free to contact me on P.M.
http://www.diyaudio.com/forums/members/900seca.html
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