I'm rebuilding my Basszilla speakers which have ported bass boxes instead of open baffle bass like yours
But I have a separate open baffle on top very similar to yours. It has an 8" Fostex driver and a small Fostex horn tweeter. I went for a bigger baffle than yours to avoid the equalizing, but discovered that it is really a lot smaller than the Basszila specs even though I did the sidewall thing as discussed above.
Fostex drivers have very low x-max so I crossed them more like 180hz. I have fiddled with the crossover for a while and now am waiting for the the Basszilla designer, Dick Olsher, to come up with his new model crossover which will use the same drivers as I do. I am also going to use an even bigger baffle to match the Basszilla exactly, then use his crossover exactly, THEN I will start playing around with sidewalls, different crossover points, etc. I discovered that without instrumentation, getting it right by ear is pretty hard🙄 So my new strategy is to do it as he says first!! Then, by changing one speaker at a time, I can try some experiments and compare them.
But I have a separate open baffle on top very similar to yours. It has an 8" Fostex driver and a small Fostex horn tweeter. I went for a bigger baffle than yours to avoid the equalizing, but discovered that it is really a lot smaller than the Basszila specs even though I did the sidewall thing as discussed above.
Fostex drivers have very low x-max so I crossed them more like 180hz. I have fiddled with the crossover for a while and now am waiting for the the Basszilla designer, Dick Olsher, to come up with his new model crossover which will use the same drivers as I do. I am also going to use an even bigger baffle to match the Basszilla exactly, then use his crossover exactly, THEN I will start playing around with sidewalls, different crossover points, etc. I discovered that without instrumentation, getting it right by ear is pretty hard🙄 So my new strategy is to do it as he says first!! Then, by changing one speaker at a time, I can try some experiments and compare them.
Sorry, I wasn't suggesting that a simple active crossover alone would do the job, rather that all the crossover work and EQing be done actively, rather than use 8 inductors in a passive system.
As regards this business of wings, I did a lot of experimenting with my baffles and found that to make a noticeable difference, the wings need to be quite deep which in turn takes away from the 'magic' sound that open-baffles give.
It's that old 'compromise' thing again!
IMHO, a wide(r) panel made of a transparent material is the best compromise for open-baffle speakers.
Hello all,
IME small wings on an open baffle increase the off axis frequency response, although the null at 90degrees is just as pronounced. With a flat baffle, spl drops at less of an angle, making the speaker more directional.
SL prioritizes uniform off axis frequency response, and it's a major reason he uses open baffles. You can keep the speaker directional in the lower frequencies to better match directionality in the high end, which you can't control. The result is a speaker with a much better power response.
Many people do not realize how much of the room they hear when they are listening to loudspeakers indoors, and how uneven off axis frequency response taints the sound at the listening position.
FWIW, JasonY
IME small wings on an open baffle increase the off axis frequency response, although the null at 90degrees is just as pronounced. With a flat baffle, spl drops at less of an angle, making the speaker more directional.
SL prioritizes uniform off axis frequency response, and it's a major reason he uses open baffles. You can keep the speaker directional in the lower frequencies to better match directionality in the high end, which you can't control. The result is a speaker with a much better power response.
Many people do not realize how much of the room they hear when they are listening to loudspeakers indoors, and how uneven off axis frequency response taints the sound at the listening position.
FWIW, JasonY
Hi transducer,
I've tried to mail you, but cannot through the forum mechanism.
Can you pls email me at: ababkin_NOSPAM_@yahoo.com
(remove the _NOSPAM_ part). Just wanted to ask couple things personally. Thanks!
Cheers
Alex
I've tried to mail you, but cannot through the forum mechanism.
Can you pls email me at: ababkin_NOSPAM_@yahoo.com
(remove the _NOSPAM_ part). Just wanted to ask couple things personally. Thanks!
Cheers
Alex
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