Can i use a active crossover for bass and midrange,then somehow
use a passive for the twitter. thanks
use a passive for the twitter. thanks
I am working on a project which combines an active crossover (woofer to mid) with a passive crossover (mid to tweeter).
https://www.diyaudio.com/community/threads/compact-low-cost-active-3-way-speaker.402812/post-7440893
https://www.diyaudio.com/community/threads/compact-low-cost-active-3-way-speaker.402812/post-7440893
Its called X now.
But seriously, yes you can. Typically woofer is actively powered by much bigger amp, perhaps classD, or plate amp, with all the settings, like volume, crossover frequency, phase...
And mid and tweeter are powered by separate amp, not so powerful, preferably classA. With passive crossover in between.
It is called X now indeed.
Consequently tweets are now known as xcrements.
Consequently tweets are now known as xcrements.
that unicorn is a dead end root in the evolution : X over ! Cross the fingers also: If only they can short cuts Tik Tok Too that makes foo foo children !
If active on the treble unit, does it no need to be protected anyway by a cap the value XO it below the real active filter high pass : for instance 50 uF cap protection ?
So a sort of passive-active bipolar behavior ?! (puns try !)
Edit : btw is it possible electrically to low pass a mid with active and high pass this same unit with passive ? Feasible if no delay introduced by the active low pass that could affect the passive high pass ? Or just impossible ?
If active on the treble unit, does it no need to be protected anyway by a cap the value XO it below the real active filter high pass : for instance 50 uF cap protection ?
So a sort of passive-active bipolar behavior ?! (puns try !)
Edit : btw is it possible electrically to low pass a mid with active and high pass this same unit with passive ? Feasible if no delay introduced by the active low pass that could affect the passive high pass ? Or just impossible ?
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diyiggy: "Edit : btw is it possible electrically to low pass a mid with active and high pass this same unit with passive ? Feasible if no delay introduced by the active low pass that could affect the passive high pass ? Or just impossible ?"
Maybe you have that backwards. A diagram would go a long way to helping clear it up. I'm assuming you want the Mid and Tweeter to be connected to the same amplifier. So in that case the highpass for the midrange would be done with the active crossover limiting the low frequencies going to that amplifier. If you low pass filtered the signal, using the active crossover, going to the amp with the midrange and tweeter to the upper limit of the midrange, that would leave the tweeter with no high frequencies .
Maybe you have that backwards. A diagram would go a long way to helping clear it up. I'm assuming you want the Mid and Tweeter to be connected to the same amplifier. So in that case the highpass for the midrange would be done with the active crossover limiting the low frequencies going to that amplifier. If you low pass filtered the signal, using the active crossover, going to the amp with the midrange and tweeter to the upper limit of the midrange, that would leave the tweeter with no high frequencies .
He is, i believe in a battle with the original X name holder.
Let’s call it Xitter. It has gone fro useful to drek.
dave
Some people add a protection cap. Note that in a PA system this can actually be counter productive.
dave
passive part coloration or noise level of the active on the high mid-treble ? Dunno ! I think I have not understood how an active sytem is managing a mid driver. I see what is a coil in a cap, less how is working an active scheme for a mid with a high pass and low pass, hence the naive question.
Is this the situation you are asking about?
Driver 1 is woofer, Driver 2 is mid, Driver 3 is tweeter. The mid driver has an active section for the lower 300 Hz filter, and passive for the higher crossover. tweeter is passive.
Yes it is possible, and it will work... Just as Allen said.
j.