Hello, simulating an 8th order parallel bandpass enclosure for my 18sw-115 drivers, just downloaded the newest version of hornresp, not sure which I had before but it was a few months since I updated.
Where it said calculate before it now says "wizard" (which was located under "tools" before?). IIRC before when I pressed calculate, I could see the volume in liters occupied by each compartment of the box (ports, chambers etc.) but now I cant. I want to see how many liters the different ports of the box occupy in the schematics window like I could before if I'm not mistaken. Is this possible?
Where it said calculate before it now says "wizard" (which was located under "tools" before?). IIRC before when I pressed calculate, I could see the volume in liters occupied by each compartment of the box (ports, chambers etc.) but now I cant. I want to see how many liters the different ports of the box occupy in the schematics window like I could before if I'm not mistaken. Is this possible?
8th order bandpass only has a wizard button, and as far as I know that was always like that (unless you simulate it using horn segments).
Thanks for your help, what I want is hornresp to calculate the volume automatically when I hover with my mouse over a specific compartment, this is what I'm looking for but for the 8th order bandpass simulation:
When I hover with my mouse above either the port or the enclosure I get the individual volume of that compartment, this is when I press calculate on a ported enclosure. Must be a reason why this is available when pressing calculate but not possible while in the Loudspeaker wizard, I just dont understand why it would not when the parameters of cross sectional area Ap1/2/3 and port length Lp1/2/3 are specified. Is it possible to see this some way?
When I hover with my mouse above either the port or the enclosure I get the individual volume of that compartment, this is when I press calculate on a ported enclosure. Must be a reason why this is available when pressing calculate but not possible while in the Loudspeaker wizard, I just dont understand why it would not when the parameters of cross sectional area Ap1/2/3 and port length Lp1/2/3 are specified. Is it possible to see this some way?
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If I take total volume of the 8th order bandpass cab I've simulated, minus the volume of the A, B and C chamber (Vc1, 2, 3) I end up with 48 liters to spare, hence I'm lead to believe hornresp has the ports calculated aswell and this is their total volume, just that it doesn't show in the same way as when calculating a ported enclosure for some reason.
It is not just the band pass wizard that doesn't show port volume, no other loudspeaker wizard does either.
Band pass loudspeaker chamber volumes are given by the Vc slider values and the total system volume (including port volumes) is shown in the schematic diagram heading. If necessary, individual port volumes can be readily calculated by multiplying Ap and Lp slider values.
Thanks!!!
I did look through the manual, but I think the catch here is the text.
Because I would never consider anything with a PR a closed box.
So a "closed box with offset driver and radiator" would never come to my mind to look for while going through a manual.
Is there anyone that could possibly explain how i can figure out at what points the segments are broke into to know what my L12 etc should be? I imported this into hornresp but my lengths dont match the dimensions I have for the enclosure?
The enlosure is 30in wide 38 tall and 38 deep. im not sure where im going wrong. any help is appreciated
Strictly speaking the box is closed because the air inside is physically trapped and separated from the air outside. On reflection however, because the loudspeaker is a bass-reflex system, to avoid any confusion in the next update the model name:
Closed-Box With Offset Driver and Passive Radiator
will be changed to:
Enclosure With Offset Driver and Passive Radiator
Several other Hornresp loudspeaker model names will be similarly altered.
Well, I don't know if the lumped element models agree with that.
All fun and jokes aside, thanks for the update as always!
I thought the driver was 21.45in?
You have the frame width at 21.4in.
L12 + L23 = 22.12in, so that's good.
38in external x 5 segments = 190in.
35.75in internal x 5 segments = 178.75in.
Does your L12 + L23 + L34 + L45 = 1 of those numbers above based on 0.75in stock?
in hornresp what is the difference between pmax and raising the Eg? and also if i had a stepped horn but for one of the segments i needed it to be be smaller than what i could get given the width of the box, if i line that segment with rockwool, the harder sound deadening kind, would that count as basiclly making the width of that chamber smaller?
or even if i used closed cell foam or something of the sort?
or even if i used closed cell foam or something of the sort?
It will displace the air if you use the Rockwool that is heavier. It will also absorb your output a bit in the midrange area. Might be what you want, might not. Foam is basically useless for anything in the lower midrange on down. so 500 hertz on down don't expect foam to do much more than cost you money and time installing it. If you want a wide band absorber use the normal insulation density Rockwool. A decently wideband absorber that we regularly use in acoustical work. Combinations are also possible but if I explain that I'll need to shoot you.....
gotcha ya ive used several different things over the years playing around with smoothing frequency response. i only said foam, like the kind you would insulate a house with not just regualr soft foam, was because all i am trying to use it for is to decrease volume of a certain segment through out the horn not needing it for smoothing out a band range or really any acoustical need. I figured the denser rock wool would probably be the best but when just trying to make the volume less i didnt know if the price difference would be worth it or benifit me in anyway when both would essentially do the same thing i thought.
I didnt know if it worked like that when it came to a stepped horn either if i model and one segment needs to be smaller while another needs to be bigger can i just decrease the volume by using something like that? that way when it goes to the next segment i would still have the width of the enclosure to give me the bigger volume. if thats makes sense lol
I didnt know if it worked like that when it came to a stepped horn either if i model and one segment needs to be smaller while another needs to be bigger can i just decrease the volume by using something like that? that way when it goes to the next segment i would still have the width of the enclosure to give me the bigger volume. if thats makes sense lol
In the next update it will be possible to specify a series or parallel connected dual voice coil driver without having to manually adjust the per coil parameter values.