This driver looks like it has a totally standard whizzer cone. The "star" in the centre is how they glued the whizzer cone in.
I don't think having so many points vibrating in free air is that big of a problem. Those spikes are where the energy, which would othereise return to the centre and back and forth - ringing, quietly dissipates.
Great points on the whizzer cone suggestions.
What I have in mind now is doing a whizzer cone with the edge folded like the picture below:
But too late to do it now, unless the new speaker basket frame sent to me by next week or so. But I believe it will only reach me around end of Dec 🙁
I been doing quite a bit of shopping at the local Art stores, looking for best material to dampen the whizzer cone edge, found some carpet felt. And at the same time I tried stuffing cotton wool between the main cone and the whizzer cone. Measurement did show some drop in the mid range by 3 dB, but still not enough.
What I have in mind now is doing a whizzer cone with the edge folded like the picture below:
An externally hosted image should be here but it was not working when we last tested it.
But too late to do it now, unless the new speaker basket frame sent to me by next week or so. But I believe it will only reach me around end of Dec 🙁
I been doing quite a bit of shopping at the local Art stores, looking for best material to dampen the whizzer cone edge, found some carpet felt. And at the same time I tried stuffing cotton wool between the main cone and the whizzer cone. Measurement did show some drop in the mid range by 3 dB, but still not enough.
An externally hosted image should be here but it was not working when we last tested it.
Updated measurements using near field and far field.
Measured at 1 meter 0 degree axis.
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New cnc basket using AL6061 aluminum, intended for Field Coil design.
An externally hosted image should be here but it was not working when we last tested it.
I forgotten to set the delay on my Arta cursor causing the phase to be incorrectly displayed
An externally hosted image should be here but it was not working when we last tested it.
Some updates on the fullrange speaker, added baffle network(just a simple inductor+resistor) and the enclosure veneered.
Time to start work on the Cutting Machine I recently purchased 😀
An externally hosted image should be here but it was not working when we last tested it.
Time to start work on the Cutting Machine I recently purchased 😀
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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Another 6.5 inch cone using different paper
An externally hosted image should be here but it was not working when we last tested it.
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Cone construction completed now waiting for the damper
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An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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An externally hosted image should be here but it was not working when we last tested it.
ghemml,
Have you tried anything other than the whizzer cone at this point? Have you thought about a hard dome for a center cap instead of the whizzer? Something mounted like a dome tweeter to the top of the voicecoil former.
Have you tried anything other than the whizzer cone at this point? Have you thought about a hard dome for a center cap instead of the whizzer? Something mounted like a dome tweeter to the top of the voicecoil former.
Not at the moment, the only thing now that I want to replace and rework on is the surrounds. Using pheonlic surround like the Axiom 80.
As for dome cap, I might want to try just with a phase plug and without the whizzer cone. Reason is I still have not figured out how to craft out a dome cap without the need to glue the ends like what I do for my cones
Sorry for all the missing photos and pictures in the earlier posts, got screwed by photobucket.
but here is my final closed to finished assemble of the 6.5 inch fullrange field coil
Haven't tested it out yet because I busy with a up coming Audio Video Show next week, but here are my latest work so far.
but here is my final closed to finished assemble of the 6.5 inch fullrange field coil
Haven't tested it out yet because I busy with a up coming Audio Video Show next week, but here are my latest work so far.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Updates on the 6.5" fullrange.
Now released as a product with pricing for 1 matched pair USD$. I giving 15% off for my 1st batch.
FA65 | Facebook
Now released as a product with pricing for 1 matched pair USD$. I giving 15% off for my 1st batch.
FA65 | Facebook
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
