Hi everyone
I am trying to get to grips with learning to use Vituix but I am falling at the first hurdle due to not being able to find frd files for the drivers that I am using.
Can anyone point me in the direction of where I would find frd file for the following drivers:
Scanspeak - D3004/660000 (tweeter)
Scanspeak - 15W/4531G00 (mid/bass)
Scanspeak - 18W/8531G00 (woofer)
SB Acoustics - SB23MFCL45-8 (sub woofer)
I've probably missed something obvious but I can't find them anywhere. Any help with this will be appreciated.
Thanks
Paul
I am trying to get to grips with learning to use Vituix but I am falling at the first hurdle due to not being able to find frd files for the drivers that I am using.
Can anyone point me in the direction of where I would find frd file for the following drivers:
Scanspeak - D3004/660000 (tweeter)
Scanspeak - 15W/4531G00 (mid/bass)
Scanspeak - 18W/8531G00 (woofer)
SB Acoustics - SB23MFCL45-8 (sub woofer)
I've probably missed something obvious but I can't find them anywhere. Any help with this will be appreciated.
Thanks
Paul
Lots here - you need to register - then click "Test, driver category" - download zip files. Translate the site to English unless you can read Italian.
https://dibirama.altervista.org/le-prove/mid-woofer.html
You can also make your own from the datasheets using the "Tools SPL Trace" in Vituixcad.
https://dibirama.altervista.org/le-prove/mid-woofer.html
You can also make your own from the datasheets using the "Tools SPL Trace" in Vituixcad.
@cowanaudio is right: if a box is to be developed, then one should use measurements of the drivers that are installed in the planned enclosure. FRD files generated from manufacturer data, for example, do not include the influences of the enclosure, which can be very significant.
Ok, these influences can be simulated for example in the Diffraction tool of VituixCAD. But in addition, when using such ready-made FRD files, there is no information about the phase relations of the drivers among each other, so that the behavior at the crossover frequencies cannot be simulated reliably.
IMHO the method of using such ready-made measurements is at best good for looking whether a project is feasible, but not for concrete development.
Many greetings,
Azrael
Ok, these influences can be simulated for example in the Diffraction tool of VituixCAD. But in addition, when using such ready-made FRD files, there is no information about the phase relations of the drivers among each other, so that the behavior at the crossover frequencies cannot be simulated reliably.
IMHO the method of using such ready-made measurements is at best good for looking whether a project is feasible, but not for concrete development.
Many greetings,
Azrael
Thank you to everyone who replied, it's appreciated.
Cowanaudio & Azrael, I'll take your advice on board. I am visiting a friend this Sunday who is more experienced then me (but hasn't used Virtuix) to get my test enclosures up and running and hopefully get some measurements. It will be my first time taking measurements, so learning about the hardware/software & techniques will be a steep new learning curve but I am looking forward to it. It will be nice when I am proficient enough to do all this myself.
Thanks again
Paul
Cowanaudio & Azrael, I'll take your advice on board. I am visiting a friend this Sunday who is more experienced then me (but hasn't used Virtuix) to get my test enclosures up and running and hopefully get some measurements. It will be my first time taking measurements, so learning about the hardware/software & techniques will be a steep new learning curve but I am looking forward to it. It will be nice when I am proficient enough to do all this myself.
Thanks again
Paul
Have a look at this design for ideas https://www.audioexcite.com/?page_id=2909 (15w 4ohm + Air Circ)
Funny you should mention that design Motokok, That's the speaker that my project started out with. Essentially I am taking the tweeter, midwoofer and passive x-over from the revelation 2 design and putting them into a larger speaker with 2 18w's per side.
I did manage to get them up and running yesterday using DSP. Once I have some decent measurements done with them I will try and use them for Virtuix, as recommended.
I did manage to get them up and running yesterday using DSP. Once I have some decent measurements done with them I will try and use them for Virtuix, as recommended.
I should perhaps mention that the x-over with the 18w's and 15w will eventually be a active x-over, but I am running them with DSP at the moment to get an idea of the x-over point and type first.
Hi, are there any other sources (different from dibirama) for FRD and ZMA files for the Scan Speak 18W/4531-G00 and D2905-950000?
Many thanks
Many thanks
Using FRD files which is based on infinite or IEC baffle measurements is NOT recommended way to use VituixCAD. You wouldn’t learn to drive a car with one hand; and using FRD files is a good way to make mistakes with VituixCAD.
Getting your system set-up and taking good quality measurements is a whole different game; that can done before or afterwards.
Read the manual in sections. Do it frequently.
https://kimmosaunisto.net/Software/VituixCAD/VituixCAD_Measurement_REW.pdf
A good way to learn VituixCAD is to use the 2 included projects- a 2 and 3 way are included in the program.
Getting your system set-up and taking good quality measurements is a whole different game; that can done before or afterwards.
Read the manual in sections. Do it frequently.
https://kimmosaunisto.net/Software/VituixCAD/VituixCAD_Measurement_REW.pdf
A good way to learn VituixCAD is to use the 2 included projects- a 2 and 3 way are included in the program.
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