David McBean's Hornresp (Horn Response) simulation program. Can simulate virtually any type of enclosure you could dream of.
Hornresp
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This thread might help you understand Hornresp basics:
Hornresp for Dum... hmm... Everyone 😉 - Home Theater Forum and Systems - HomeTheaterShack.com
Yeah i'm going to have to go over this. Are you able to model something for me real quick when/if you have time? I bought the box i listed in a previous post. I can modify it according to whatever the subs will be best in. I'm hoping for 115ish db. I haven't bought the subs yet so I'm open to suggestions if there is something better in this price range.
Dayton list sensitivity at 2.83v regardless of impedence. The lower the impedence, the more power it is getting.
2.83v is 1w at EIGHT ohms, at 4 ohms it is 2w etc. Therefore it is likely the dvc has been measured with the coils in series etc.
In reality with the same ACTUAL power, they are basically the same.
I plan on feeding them 1k rms each. I'll set gain a little low. Since it's only $6 more I'll get the DVC. Thanks for the help. I'm not totally set on these, as I'm a little afraid their output will be too Mellow.
I have one of these sealed on 650w. How will the Daytons compare in out put/quality? NKO-12 - Dark Audio Industries
I'll have to give the program another shot. 90.5 @1w so @ 1k watts and two subs theoretically that's 127db. Box and cabin gain will change that. I'm hoping for at least 120db.
I must have done something wrong. I'm getting very low DB. Here is some screen shots.
Attachments
14.4 volts (Eg) into 6.5 ohms (Re) only produces 31.9 watts, very low power compared to 1000...
I had more luck in winisd. Looks a lot more reasonable, yes?
Attachments
It does not look like you entered your speaker's TS parameters into Hornresp, and you've modeled a horn rather than a sealed or ported enclosure.
To get a simulated response reasonably close to what you're cabinet and speaker are requires the proper inputs.
I followed the guide. Theres alot of data no provided on my woofer. Theres also alot of N/A sections that don't apply to my woofer. I've been messing with it for 3 hrs.
If the daytons aren't to my liking i'll send them back and go back to ebay SPL subs. Thanks for your assistance!
There is no dimensions for the truck box, but you only need ~14 L/driver, so if it is > ~28 L, then you can always reduce its internal volume [Vb] if 'cabin gain' is not great enough to get the desired low bass.
GM
Oops! In my haste, I did not scroll down far enough. 🙁
OK, have no direct experience with any of the parts or even putting a big sub in a truck, so the following is strictly based on published specs and comparing in vehicle response using a [once] popular JBL woofer's with a similar sensitivity as a general guideline: https://www.hobbielektronika.hu/forum/getfile.php?id=189513
Yes, your HO specs are way off. The easy way to input them is to double click on the 'Sd' field and a window will pop up for you to input them. Note that it auto calculates Qts.
I guessed that two would take up approximately 0.3 ft^3, so cab net Vb = ~0.8 ft^3 [ ~22.65 L], so actually either near perfect or maybe too small, though heavy stuffing can offset it if required or just use some low bass boost.
In comparing the response to the JBL, it rolls off quicker, but your truck may have more 'cabin gain' than JBL predicts in a typical car to offset it, indicating it might be too small, though at high power I doubt the difference would not be obvious at these low frequencies, though might sound a bit 'boomy' at modest playback. Again, the usual way to fix it is to add more internal damping.
Attached is my HR file, so download it and put it in HR's 'IMPORT' folder, then in HR click File/Import/Hornresp record, then double click my file and it will load as a new 'Record' for you to do as you please with it.
GM
OK, have no direct experience with any of the parts or even putting a big sub in a truck, so the following is strictly based on published specs and comparing in vehicle response using a [once] popular JBL woofer's with a similar sensitivity as a general guideline: https://www.hobbielektronika.hu/forum/getfile.php?id=189513
Yes, your HO specs are way off. The easy way to input them is to double click on the 'Sd' field and a window will pop up for you to input them. Note that it auto calculates Qts.
I guessed that two would take up approximately 0.3 ft^3, so cab net Vb = ~0.8 ft^3 [ ~22.65 L], so actually either near perfect or maybe too small, though heavy stuffing can offset it if required or just use some low bass boost.
In comparing the response to the JBL, it rolls off quicker, but your truck may have more 'cabin gain' than JBL predicts in a typical car to offset it, indicating it might be too small, though at high power I doubt the difference would not be obvious at these low frequencies, though might sound a bit 'boomy' at modest playback. Again, the usual way to fix it is to add more internal damping.
Attached is my HR file, so download it and put it in HR's 'IMPORT' folder, then in HR click File/Import/Hornresp record, then double click my file and it will load as a new 'Record' for you to do as you please with it.
GM
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