Xmax doesn't change raw driver response.
Yes, only with eqzalization.
Yet another question: re Linkwitz Transform (I understand I can use LT to boost the response in the 20-40Hz region using the xmax potential of DA drivers.
Question: can I use the MiniDSP linked below spreadsheet to calculate LT and then realize it in Hypex HFD?
https://www.minidsp.com/applications/advanced-tools/linkwitz-transform
I think the answer is yes, but not clear how - do you just enter some parameters from the sheet into HFD? Or is it a 'try things until the curve looks like the target one in the sheet'?
Question: can I use the MiniDSP linked below spreadsheet to calculate LT and then realize it in Hypex HFD?
https://www.minidsp.com/applications/advanced-tools/linkwitz-transform
I think the answer is yes, but not clear how - do you just enter some parameters from the sheet into HFD? Or is it a 'try things until the curve looks like the target one in the sheet'?
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I do not know the answer to your questions, however VituixCad can help, I think.
Firstly you need to verify that you are using the correct sampling frequency for your chosen modules 96K???
You can select your DSP type in the options window, and secondly once you are in the enclosure tool, select or manually add drivers as needed .
Select Box Type, and then in the Filter tab you can select L-T for your desired Linkwitz transform. By selecting and de-selecting the tool you can see how the L-T eats up or doesn't use all of the drivers excursion and how much power and output level you can achieve by increasing or decreasing the input power plus the usual six pack information.
As you get further into this you may need to understand if your measuring microphone is directly compatible with Hypex Filter design.
A long time ago in a hypex thread there was some debate over the use of USB mikes due to timing accuracy considerations. Things move on, that was probably six or seven years ago.
Maybe worth searching the internet to find the current state of play for correct setup, maybe people files instead of directly working with the hypex software and a compatible microphone setup? A question for hifijim maybe as he is using Hypex for his current designs ?
Firstly you need to verify that you are using the correct sampling frequency for your chosen modules 96K???
You can select your DSP type in the options window, and secondly once you are in the enclosure tool, select or manually add drivers as needed .
Select Box Type, and then in the Filter tab you can select L-T for your desired Linkwitz transform. By selecting and de-selecting the tool you can see how the L-T eats up or doesn't use all of the drivers excursion and how much power and output level you can achieve by increasing or decreasing the input power plus the usual six pack information.
As you get further into this you may need to understand if your measuring microphone is directly compatible with Hypex Filter design.
A long time ago in a hypex thread there was some debate over the use of USB mikes due to timing accuracy considerations. Things move on, that was probably six or seven years ago.
Maybe worth searching the internet to find the current state of play for correct setup, maybe people files instead of directly working with the hypex software and a compatible microphone setup? A question for hifijim maybe as he is using Hypex for his current designs ?
It's 'try and measure things and move the speakers and change parameters until they sound and measure right in your room/your listening spot'!
VituixCAD (freeware) gives possibility to make good simulations, if the user is experienced and careful. Follow all instruction details carefully! Good quality measurements (without artefacts from the room or noise) are the basis for this. The sw has enormous number of parameters that you must understand and set right!
You are progressing now very fast, be prepared for at least a few weekends for learning to take measurements and analysing them!
Another trial-error-correct method is time consuming in another way, but you will get accustomed to the procedure and the artefacts that measurements have (reflections, modes, noises etc.) I am too stupid and lazy to learn simulation software and instructions by reading and thinking... but many more engineering-like brains handle it better than frustrating "freehand" method.
You are progressing now very fast, be prepared for at least a few weekends for learning to take measurements and analysing them!
Another trial-error-correct method is time consuming in another way, but you will get accustomed to the procedure and the artefacts that measurements have (reflections, modes, noises etc.) I am too stupid and lazy to learn simulation software and instructions by reading and thinking... but many more engineering-like brains handle it better than frustrating "freehand" method.
With the amps here and the back plates/amp boxes arriving in a day or two, Step 1 (use old drivers and cabinet as is) is leaping into the 'do' stage.
My next possible stumbling block is getting HFD software to work properly. With a Windows XP computer I was only able to install a very old version of HFD, so not sure it will work properly/fully with the latest FA253 amps. I hope to avoid having to buy a new Windows laptop.
Step 2 (new drivers and cabinet mods) is in very conceptual thinking stage.
My next possible stumbling block is getting HFD software to work properly. With a Windows XP computer I was only able to install a very old version of HFD, so not sure it will work properly/fully with the latest FA253 amps. I hope to avoid having to buy a new Windows laptop.
Step 2 (new drivers and cabinet mods) is in very conceptual thinking stage.
First impressions: very compact, surprisingly light. Build quality is good.
Note: No USB or power cable included (only the driver connection cables).
Note: No USB or power cable included (only the driver connection cables).
Nope. Hypex not recognised by HFD. Windows said USB device could not be installed when I first connected it. Bummer!
Well, the build should include Win 10 or better 11 laptop then. With "Pro" version or "Enterprise" or whatever it is called now. It should be affordable 😉
If you have problems, remove all copies of "Visual C++" from windows uninstall in the control panel and put in the latest you can.
https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170
Just thinking out loud. I don't know what all you need to do with the computer, or how complicated it may become.
Borrow a computer? Can you make changes on a thumb drive, and carry the adjustment home? Can someone make changes remotely, and e-mail them?
In my town, the library has computers. Not sure if they would allow use this way. Make friends with an employee maybe.
Borrow a computer? Can you make changes on a thumb drive, and carry the adjustment home? Can someone make changes remotely, and e-mail them?
In my town, the library has computers. Not sure if they would allow use this way. Make friends with an employee maybe.
I believe that setting cannot be loaded to the drive from a camemory card. One needs the HFD be running to connect to the FA.
Making settings without being able to take new measurements immediately and readjusting is not reaonable.
So buy or borrow a Win10/11 laptop. For fluent work it should have 3 USB-ports or you will need a USB hub too. The same computer is used for REW or other sound analyzing software too (out/in). It is easy to use analog signal for FA at least when measuring and making settings. Be sure that the output of sound has no dsp on like bass enhancement.
Making settings without being able to take new measurements immediately and readjusting is not reaonable.
So buy or borrow a Win10/11 laptop. For fluent work it should have 3 USB-ports or you will need a USB hub too. The same computer is used for REW or other sound analyzing software too (out/in). It is easy to use analog signal for FA at least when measuring and making settings. Be sure that the output of sound has no dsp on like bass enhancement.
EDIT over...
I believe that setting cannot be loaded to the board from a memory card. One needs the HFD be running to connect to the FA.
I believe that setting cannot be loaded to the board from a memory card. One needs the HFD be running to connect to the FA.
Been awhile since l set mine up but try AsymShelf option. Shelf = Low Shelf
Input from your LT spreadsheet
Zero frequency = f(0)
Pole frequency = f(p)
Zero Q = Q(0)
Pole Q = Q(p)
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Thank you. Checked those, but they were same price or higher than low spec laptops, so went for a laptop.