An example of different ways to do it - https://www.diyaudio.com/community/...overs-without-measurement.189847/post-6910468If I use the Baffle Step calculator (6db) requires a 3.4mh coil 6 ohm resistor. I can do 3 db and it would be a 1.4mh and 2.5ohm resistor. Does this take the place of the existing crossover in the woofer section? in addition to?
285Hz is your F3 (midpoint) of your baffle step rise / loss (being approx 115 / 0.4064 metres = ~282Hz).Hi All,
My baffle width is 16 inch the step frequency comes out to 285hz. I crossed over my woofer at 285hz. I pad down the mid and tweet. Is that an acceptable alternative to adding the baffle step compensation circuit?
Therefore you have rise still occuring above 285Hz. Your midrange needs to be part of the baffle step solution.
Padding the mid (and tweet) is fine. resistors / shaping circuits are quite common here, without having to cascade filters with the woofer circuit.
@Dave Bullet Thank you for the suggestion, Im raised the XO point of the mid slightly. You were correct a bit too much in the 230 -300 hz range. Sounds a bit better. Not as heavy and a bit clearer. I am also padding down the mid only for now. experimentation continues but I believe I am on the right track.285Hz is your F3 (midpoint) of your baffle step rise / loss (being approx 115 / 0.4064 metres = ~282Hz).
Therefore you have rise still occuring above 285Hz. Your midrange needs to be part of the baffle step solution.
Padding the mid (and tweet) is fine. resistors / shaping circuits are quite common here, without having to cascade filters with the woofer circuit.
I use a 12" offset in a 22.5" wide open baffle.Yes……if you’re going to accept a huge hit to imaging with such a wide baffle, you might as well use that baffle and instead use a more sensitive 12” woofer that extends deeper than the 8.
The image very well, I just don't toe them in. This keeps a lot of baffle reflections away from me, and lateral dipole cancellation helps with ceiling and sidewall reflections. My less efficient helper tweeters are aimed for on axis response, above 9 or 10000 hz.
A friend brought over his refreshed LS 3/5A to give me a lesson in proper box speakers imaging and soundstage done right.
The bet Porterhouse steak was on his tab.
hasn't this been shown to be myth?Yes……if you’re going to accept a huge hit to imaging with such a wide baffle, you might as well use that baffle and instead use a more sensitive 12” woofer that extends deeper than the 8. Now there’s less attenuation needed on the mid tweet and an overall more efficient system.
How many db down is the bottom of the step?The baffle correction is a step, while the crossover is a continuously dropping response.
So that's two different things, one cannot replace the other.
Jan
My system images like crazy, probably its greatest strength!!hasn't this been shown to be myth?
unless the laws of physics were derived from the greek gods instead of scientists.....then no, it's not a myth at all. Quite often this comes from the same folks with directional horns aimed to crossfire in front of them too........the big headphone effect that sounds great!....until it doesn'thasn't this been shown to be myth?
IIRC -6dB, but check it.How many db down is the bottom of the step?
Jan
……if you’re going to accept a huge hit to imaging with such a wide baffle
My wide baffle WAW image rerally well.

dave
hmm... what laws of physics show that narrow images better than wide baffle?unless the laws of physics were derived from the greek gods instead of scientists.....then no, it's not a myth at all. Quite often this comes from the same folks with directional horns aimed to crossfire in front of them too........the big headphone effect that sounds great!....until it doesn't
Theres a lot about this hobby that doesn't always follow the rule of law. tubes, solid state, cable, etc. I think that sometimes things come together in a way that you cant explain but it just works or as my buddy says It's PFM !! (Pure ******* Magic!)
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a wide baffle would be less omni at lower frequencies and you have more reflections from the baffle. out of the various speakers iv owned narrow baffle has been better, but that may also be a consequence of smaller drivers which are more capable at higher freq etc.
siegfried linkwitz would certainly have a say in this if he was alive.
siegfried linkwitz would certainly have a say in this if he was alive.
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Or the law is incorrect or incomplete. 🙂Theres a lot about this hobby that doesn't always follow the rule of law.
nopeTheres a lot about this hobby that doesn't always follow the rule of law.
Ask Galileo's descendants how empirical proof sometimes does against the known facts of the day.Or the law is incorrect or incomplete. 🙂
If y'all want to believe in majic that's fine, just don't try to pretend it's because the laws of physics has not caught up to your golden ears.
I don't believe in homeopathy, but I'm ok if you do, but I am gonna think you're being silly when you tell me science just hasn't caught up to your healing "art".
If I am off base here and there have been major breakthroughs in the physics of sound in the last 20 years please let me know. I am always willing to learn and will eat crow from time to time.
I don't believe in homeopathy, but I'm ok if you do, but I am gonna think you're being silly when you tell me science just hasn't caught up to your healing "art".
If I am off base here and there have been major breakthroughs in the physics of sound in the last 20 years please let me know. I am always willing to learn and will eat crow from time to time.
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