I had an idea to get a Mini DSP 2x4 and run that into the L and R channel of my Parasound amp splitting the signal between 2 drivers (woofer/mid and tweeter or sub and mid). I could just fiddle with the DSP channels to get everything adjusted properly and sounding (and measuring) smoooooth. Once I got that, I could basically just build a physical crossover to match my DSP settings and stuff that in my speaker. The biggest assumption is that my DSP settings will be able to accurately be duplicated (with minimal effort and correction) with electrical components AND that my Parasound amp does not add any eq/color to the signal. Thoughts?
Sounds OK. But building that X-over is not necessarily easy. It takes a lot more skills than tweaking a few DSP biquads ;-) Why not stick to your just created wanted position sound incl. the DSP? You realise that for every filter you add with the DSP, it may take some 1-6 passive components (L,R,C) to make a passive equivalent? And it still might not do the same as the filter...
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Joined 2003
Replicating DSP filter transfer function with passive components exactly can be challenging. Better solution is to design the filter using passive components to begin with, and then process the resulting transfer function in the digital domain.
Using a combination of VituixCAD and APO EQ, any filter transfer function can be simulated in digital domain using your own PC as the DSP using an impulse response convolution process. All that is required is enough audio channels for the speaker you wish to simulate, many PCs these days include 5.1 or 7.1 channels of audio built-in.
Here's a step-by-step I wrote on how to transfer any filter designed with VituixCAD to APO EQ to listen before you build, and provided you already have the audio capability in your PC, is a cheaper solution than purchasing a seperate dedicated hardware DSP.
Using a combination of VituixCAD and APO EQ, any filter transfer function can be simulated in digital domain using your own PC as the DSP using an impulse response convolution process. All that is required is enough audio channels for the speaker you wish to simulate, many PCs these days include 5.1 or 7.1 channels of audio built-in.
Here's a step-by-step I wrote on how to transfer any filter designed with VituixCAD to APO EQ to listen before you build, and provided you already have the audio capability in your PC, is a cheaper solution than purchasing a seperate dedicated hardware DSP.
I find it interesting that you want to use an analog crossover when an DSP based crossover is available. A DSP can do things that are not possible with an analog circuit, ie better phase / amplitude profiles because a DSP has memory you can include the future in the calculations. I'm sure that some audiophiles are very proud of their analog creations, but then there are/were some very fine steam engines that I would not care to drive today.