Or, they use the cone (and possibly the magnet) of the 15HCX76 or 15CXN76, the parameters of which are close to the Cyrille M38ND76P-2.
To get a clue about the driver, it's useful to check the cone surface/structure.
If you compare the woofers of the previous pages, the GPA 416 etc., but also the Faital 15PR400 you'll notice the cone surface is similar to this (of my own driver):
If you compare the woofers of the previous pages, the GPA 416 etc., but also the Faital 15PR400 you'll notice the cone surface is similar to this (of my own driver):
Attachments
Charles, I guess you refer to Fs / Qts = 138 Hz ?
Yes, I do.
Regarding the cones: Usually straight-sided ribbed cones are better at the low end and thin light curvilinear ones are better at midrange. An then there are some exceptions to that rule. Or curvilinear cones with ribs (2216), or ……….
Hoping to get the best of both worlds my next one will be a tree-way with straight-sided ribbed 15" wofers and a 12" midrange with a light curvilinear cone.
Regards
Charles
To get a clue about the driver, it's useful to check the cone surface/structure.
You can see that structure on a lot of drivers, even on extremely cheap ones. That's not actually a hint.
Obviously, this applies in conjunction with the motor and suspension.
I am not talking about guitar woofers with 1.5" VC.
I am not talking about guitar woofers with 1.5" VC.
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Obviously, this applies in conjunction with the motor and suspension.
If it's that common, it's obviously not a hint. That got the same quality as saying 'that car got alloy wheels, it must be a BMW'.
Ok, let's reverse the statement:
Find a number of midwoofers suitable for 2-way application, let's assume in a BR cab, with usable bandwidth and that don't require massive amounts of amplifier power.
Then check the cones of the woofers that you've found.
Find a number of midwoofers suitable for 2-way application, let's assume in a BR cab, with usable bandwidth and that don't require massive amounts of amplifier power.
Then check the cones of the woofers that you've found.
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Ok, let's reverse the statement:
Find a number of midwoofers suitable for 2-way application, let's assume in a BR cab, with usable bandwidth and that don't require massive amounts of amplifier power.
Then check the cones of the woofers that you've found.
A lot of the PA drivers got non-coated paper cones. You can find that structure at about 1/4 of them.
Typical high power woofer:
An externally hosted image should be here but it was not working when we last tested it.
And finally, another midwoofer. This one is cheap, but very good. It doesn't deliver quite same low end as the 15PR400 though:

@Camplo - in case you have not seen the specs for the JBL 2216Nd: 2216Nd
As mentioned before, I would consider this the benchmark as in the M2 package it can make 20 Hz in-room, has a smooth mid sound and can make it to 800 Hz XO point no problem. At the very least, can be used as comparison to other woofers you may be considering.
As mentioned before, I would consider this the benchmark as in the M2 package it can make 20 Hz in-room, has a smooth mid sound and can make it to 800 Hz XO point no problem. At the very least, can be used as comparison to other woofers you may be considering.
Mitch, I think Camplo will agree. He has compared several woofers to the 2216nd.
The above woofer comparisons do not fully apply in Camplo's case.
He needs a driver in between the B&C TBX and the 15PR400.
The 15FH500 ticks nearly all the boxes, except it needs a large volume cab.
He also still needs a horn, but I think there's some progress in that respect.
The above woofer comparisons do not fully apply in Camplo's case.
He needs a driver in between the B&C TBX and the 15PR400.
The 15FH500 ticks nearly all the boxes, except it needs a large volume cab.
He also still needs a horn, but I think there's some progress in that respect.
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The 15FH500 ticks nearly all the boxes, except it needs a large volume cab.
Don’t really ‘know’ what I’m talking about but, would that woofer with some sort of aperiodic hybrid vent work?
Aperiodic makes the driver act as if the box was larger.....if it’s possible to reduce the volume enough with all else the same idk?
A driver that is a little similar to the B&C/Cyrille is the 18sound 15nd930. I guess both drivers will have a nice midrange due to the curvilinear cone but restricted LF due to the low Q, despite a fairly low fs.
Regards
Charles
I know this driver keeps popping its head up, but I have tried the above mentioned 18 sound driver and yes, you have guessed it, the 15PR400
sounds better🙂
Mitch, I think Camplo will agree. He has compared several woofers to the 2216nd.
The above woofer comparisons do not fully apply in Camplo's case.
He needs a driver in between the B&C TBX and the 15PR400.
The 15FH500 ticks nearly all the boxes, except it needs a large volume cab.
I'd not seen the 500 before. That's a lot of Xmax for a woofer that sensitive, with a nice smooth bandwidth. Very impressive.
Mitch, I think Camplo will agree. He has compared several woofers to the 2216nd.
The above woofer comparisons do not fully apply in Camplo's case.
He needs a driver in between the B&C TBX and the 15PR400.
The 15FH500 ticks nearly all the boxes, except it needs a large volume cab.
He also still needs a horn, but I think there's some progress in that respect.
15TBX100 need a bit of a lower crossover right?
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