thanks,for the read material
Looks like almost a copy of the magnepan pictures in there older patents
must be a patent thing to draw exactly the same. even the bended steel has been done in the first magnepans, in the 70's , and later in b&g patents to. but i guess not so much easy to make the same every time
not sure but they did do the exact same thing , and as far as i know nothing new here under the sun. just the same old same. not bad i mean there is only so much you can do. but i laugh at the whole technical stories companies come up with , and end up with the exact same stuff
push pull should gain 6dB in theory, usual 5db is more like realworld. but i think the reason for that is rather big xmax. with tweeters it raised 5db in my designs. about maggies there xmax is more like 1.2 mm spacers are 3.15mm 1-8th inch, and magnets are 2.2 +- mm since rubber is not so potent i think its not possible to make that much bigger, in push pull it should be possible at a cost of efficiency. like 1.5mm xmax and still gain a few db and have a tad higher xmax hence max spl. best benefit is reducing second order harmonics. downside is doing tweeters in this arrangement is hard. cavity resonances become a problem when using push pull as far as i know. depending on the thickness of the magnets
Can you explain the cavity resonance issues at higher frequencies with push pull systems? Is there a way to damp it out without the use of notch filters?
i dont know, you can eq the poo out of it
just like some B&G suggestsbut i think thats not the way to go
looking into it once more and im sure they are a bit lying about ther xmax. first of it might he max in theorie. but wont ever hit it .secondly there xmax is stated one way and only in the middle as well as the steel does not look at all competent to hold such forces. i tried with 50 feriete magnets, each pulling 4 KG. so times 2 on a push pull.... no ******* way. they pulled it off with that steel with neo's 50 x 4kg x 2 ... erm nope 200-400KG that steel wont take. im pretty sure. as for there magnets that should even be more.
as well as the steel does not look at all competent to hold such forces. i tried with 50 feriete magnets, each pulling 4 KG. so times 2 on a push pull.... no ******* way. they pulled it off with that steel with neo's 50 x 4kg x 2 ... erm nope 200-400KG that steel wont take. im pretty sure. as for there magnets that should even be more.- Status
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