Honestly, when someone like Scottmoose keeps telling us why he thinks so and so driver will present problems, I listen.
I've been getting frustrated waiting for a proposed alternative BLH build plan for A12p and started to look at other drivers. I had sent a PM to Sonido to inquire about where to buy the drivers, Istvan responded that day. I'm sure he would answer any and all of your questions and concerns. Here is what he told me:
"SONIDO Varga Istvan
Hello,
You can buy these drivers (SFR 175/A) directly from me. You can reach me at:
info@sonido.hu
Best Regards,
Istvan Varga
SONIDO"
I've been getting frustrated waiting for a proposed alternative BLH build plan for A12p and started to look at other drivers. I had sent a PM to Sonido to inquire about where to buy the drivers, Istvan responded that day. I'm sure he would answer any and all of your questions and concerns. Here is what he told me:
"SONIDO Varga Istvan
Hello,
You can buy these drivers (SFR 175/A) directly from me. You can reach me at:
info@sonido.hu
Best Regards,
Istvan Varga
SONIDO"
The design is done; I can't draw it however, and Dave's health is such that he is not able to dedicate much time to audio at present. It will be released, but I can't say when.
The AN range have, I'm sure, many excellent qualities; however, unless they are exempt from the laws of physics the rest of the universe is obliged to adhere to, as noted, I would use those as a guide in the design stages. As noted though, I will refrain from offering any further thoughts on the subject.
As a brief OT aside, Sonido have a good reputation & I've had my eye on their units for some time.
The AN range have, I'm sure, many excellent qualities; however, unless they are exempt from the laws of physics the rest of the universe is obliged to adhere to, as noted, I would use those as a guide in the design stages. As noted though, I will refrain from offering any further thoughts on the subject.
As a brief OT aside, Sonido have a good reputation & I've had my eye on their units for some time.
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You are correct. The rep at Sonido responded. The next step for me is to hear a demo of the 12" he recommended. SWR 250/FC (10") can safely recommend you NEW drivers and these are Field-Coil drivers. This is when instead of a magnet they have an electomagnet, creating a magnetic field using a constant power supply unit. The power sourse has a regulator, this allows you to change the current.
By changing the current, you can change the quality factor, which allows you to use these drivers in 4 options: horn, closed box, vented box and OB.
Can I ask the overall L x W x D of JANE horn?
Also, would it be possible for you to send me a freehand sketch of the plan with clear measurements and angles? I could then draw plan myself, send it back to you to check that I got it right?
I can’t say my ears would be able to withstand the volume of running my 15” full range until the ferrite magnet got warm enough to be an issue
I'm slowly having a change of hear on the brand of drivers. I've been checking out the Sonida's and they are pretty impressive.
Nice!
I could do a beta build only I don't claim the experience with the type of design to critique them well.
Btw, I also like the driver cut out proximity to the top for doing A12pw with a tweeter/horn super tweeter or ribbon in open air on top of the cabinet.
Can someone please decipher this and explain to me in layman’s term? “Hi Alex,
Please find the simulation in attachment. This is a simulation in my recommended box, these are drivers SWR 250/FC play from 38-39 Hz -3dB and in your box ( the sizes you sent me) play from 41-42 dB -3dB
Significant difference between these boes I do not see. I recommend these drivers for your desidn.
Drivers SFR 175 I do not get this box, they need a lange box.
Best Regards,
Istvan “
What preceded the statement was me asking the folks at Sonido if the 12” can be used in a box I’m designing which would be 33” tall, 17” long, 16” wide.
In one breath it seems like he’s saying he doesn’t see a big difference in my design vs his proposed design. But in another breath he’s recommending a different driver size.
Thank you folks.
Please find the simulation in attachment. This is a simulation in my recommended box, these are drivers SWR 250/FC play from 38-39 Hz -3dB and in your box ( the sizes you sent me) play from 41-42 dB -3dB
Significant difference between these boes I do not see. I recommend these drivers for your desidn.
Drivers SFR 175 I do not get this box, they need a lange box.
Best Regards,
Istvan “
What preceded the statement was me asking the folks at Sonido if the 12” can be used in a box I’m designing which would be 33” tall, 17” long, 16” wide.
In one breath it seems like he’s saying he doesn’t see a big difference in my design vs his proposed design. But in another breath he’s recommending a different driver size.
Thank you folks.
Ah, I see. Joan of Arc no doubt, given the sweep of the curved back.
:^)
Curved back from Ron Clarke…
dave
First thing to pay attention to is that F3 is meaningless to humans. Look at F6/F10 instead.
dave
I tried to and I received a message telling me you don’t accept private messages. Can you also tell me what the rep for Sonido is saying?
Seriously !? Clearly small to no knowledge of the material properties bleated about in those statements.
Read up some?
A Quicky update cuz I'm momentarily Bored.
Ferrite is Mag capable iron powder pressed into shapes. It's the cheapest mag material known.
Makes a sharp Bass impact as an easy identifier.
It also ..loses flux with time. Proven and measurable by it's tenth birthday.
Samarium Cobalt is basically Ferrite with a bit of Cobalt powder mixed in.. better than Ferrite but not by much, Just a bit more of the same..despite hype.
Neo is definitely powerful..Big Flux in a small package.. but it scatters it's domains (demags) Permanently! with Heat..
not much heat either. Boiling water will demag most Neodym.. albeit it's temp threshold is quality /price dependant.
However as Neo costs significantly More than Cobalt !
Unlikely Speaker makers are fitting the yet pricier higher temp tolerant grades.
Alnico is Heat immune to 800C and has an alleged 2000 yr shelf life, before flux loss is measurable.
It's flux also deforms under heavy loads (Guitar speakers at Max volume as as quick example) Softening the sounds impact.. some find this pleasing.
Alnico is unaffected by this 'abuse' as it self heals/realigns it's domains once the load has eased off.
Musicians Prize this sound softening and can't be damaged characteristic.. a lot.
Regardless, IMO.. It would take Cloth ears to Not identify a speaker by
it's Motor's Characteristic sound signatures
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