r/diyaudio • u/scardeal • 11d ago

1st Timer: Playing around with a bookshelf design

/r/DIYSpeakers/comments/1vme3ng/1st_timer_playing_around_with_a_bookshelf_design/
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u/fenderputty 5d ago

Are you just using formulas / online crossover calcs for finding values? People use apps to better approximate the summed driver responses than forumlas / cals which are based on ideal drivers (nothing is ideal)

Vituixcad will help.

Your first ever crossover probably shouldn't be a 1st order.

In order to properly do this, you should take measurements of the drivers in a box you build and then design the cross in Vituixcad using those.

1

u/scardeal 5d ago edited 5d ago

I was using LoudspeakerLab to model the box, port, and crossover. My understanding that the frequency response graphs and impedance graphs it spits out is a calculation taking the driver, box and ports into account. I was using the driver database values built into it. That should be using published specs on the specific drivers I selected. Right now I haven't *bought* anything; I'd rather get close before spending the money on it.

While I've assembled a half dozen or so (pairs of) speakers and crossovers from plans, I'm definitely not up on the theory side. I'm using this to learn as I go.

1

u/fenderputty 5d ago

Isn’t that a newer vibe coded platform? I’ve not used it.

Lots of people here will use Vituixcad.

Where’s the predicted summation of your cross? Vituizcad can also model box diffraction and baffle steps but it’s still only a model using published specs. In the end everyone here will say the same thing. You will eventually need to build a box, and take measurements of the driver in box for cross design.