Hello girls and boys...
Need an advice or "how to"...
I have a pair of P Audio BM-8CXA drivers.
Would like to remove the back of the tweeter for mounting into an open baffle project i am working on currently.
Can someone tell me what to expect under the cap of the backside of the tweeter?
I know i have 4 screws to remove but what is holding the tweeter coil with the dome there and how to secure it when i remove the backside of the tweeter part of the driver....
Would love to know what i have to be careful on before going into this ..
thank you
Need an advice or "how to"...
I have a pair of P Audio BM-8CXA drivers.
Would like to remove the back of the tweeter for mounting into an open baffle project i am working on currently.
Can someone tell me what to expect under the cap of the backside of the tweeter?
I know i have 4 screws to remove but what is holding the tweeter coil with the dome there and how to secure it when i remove the backside of the tweeter part of the driver....
Would love to know what i have to be careful on before going into this ..
thank you
Typical compression driver internals
Speaker Repair Yamaha Eminence Horn Driver Diaphragm Replacement by Simply Speakers - YouTube
Speaker Repair Yamaha Eminence Horn Driver Diaphragm Replacement by Simply Speakers - YouTube
Thank you for the video link....
... it is probably typical but i never took appart one... so i have to ask at least ����
....
Will check the video a bit later when kids are asleep....
...
I had an idea to maybe cut a hole in each endcap and with thus to open the backside....
Have to check the video
... it is probably typical but i never took appart one... so i have to ask at least ����
....
Will check the video a bit later when kids are asleep....
...
I had an idea to maybe cut a hole in each endcap and with thus to open the backside....
Have to check the video
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Could not wait until kids go to sleep... had to check it out now....
Thank you...seems like the coil and diaphragm is in that cap and can't be separated from it...to bad....
Depends on how much work you're willing to do and exactly how it's put together inside. On some compression drivers a mod like this looks easier. Might be worth a look inside still.
If your tweeter has the typical threads, you could swap your tweeter for one that's easier to modify.
A couple other designs below.
About 9.5 minutes into this one, he's disassembling
Modifying a Compression Driver - YouTube
Replacing the diaphragm on a compression driver - YouTube
If your tweeter has the typical threads, you could swap your tweeter for one that's easier to modify.
A couple other designs below.
About 9.5 minutes into this one, he's disassembling
Modifying a Compression Driver - YouTube
Replacing the diaphragm on a compression driver - YouTube
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mattstat - first video seems to be showing exactly how the coil is placed on my driver... at least on some iterations of that driver... problem is i have a same type of the driver with different connecting spots ... so i asume it is the same internally related coil and diaphragm but that the cap is actually fixing that in place...
either way - it is very clear on that video that it should not be a to much of a problem to dismount the backside and check it out... if moderately careful, seems to me, i will be reasonably safe not to damage anything....
great help - thank you
either way - it is very clear on that video that it should not be a to much of a problem to dismount the backside and check it out... if moderately careful, seems to me, i will be reasonably safe not to damage anything....
great help - thank you
Crimes, I would not so much describe that as "modifying a compression driver" as outright butchery!
It is difficult to see that operating as a compression driver, and I can only imagine how soon fatigue related cracking/ tears can be expected to occur in what little remains of the suspension.
Why would you do that to a driver, and then put a horn on the front?
It is difficult to see that operating as a compression driver, and I can only imagine how soon fatigue related cracking/ tears can be expected to occur in what little remains of the suspension.
Why would you do that to a driver, and then put a horn on the front?
Don’t touch anything, just add a backfire horn tweeter, in reverse phase from the front horn tweeter. That's how you will get the full OB effect.
That video definitely shows a rather aggressive approach, but some people like to experiment and figure out how things work. An experience is often a better teacher than theories and speculation. And in this case, it also showed a different way diaphragms can mount, which was useful to this discussion.
Since most compression drivers are used way below their power ratings in home audio, it may do what he wanted over a limited use range. It's certainly going to be different than the original designer intended, but I think that was the point.
Well, i will not cut that driver lime he did... i was only interested to open it up from behind..... to get a dipole... without adding extra driver....
The efficiency of that driver is great because of the horn, if you open the chamber at the back, the sound you get at the back will be much weaker than the one at the front from the horn. And the parameters of the driver will also change.
That is also what qorries me indeed..... ohhh well... decisions, decisions....
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Seems my life will be easier to just leave that driver be as it is..... much easier i think... ohh well....
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Seems my life will be easier to just leave that driver be as it is..... much easier i think... ohh well....