Many times this will change to 6 and should be 2 or 4. Be sure to monitor these when changing the connection option, but WinISD should automatically change these values properly.Ĭorrect Znom (nominal impedance) if needed. The mid I want to use (Seas M15CH002) has a wopping EBP of 128, putting it firmly in the ported and 'vented/horn' category. NOTE: Drivers using dual voice coils may cause the Bl and Re parameters to change when changing the connection wiring from parallel to series. Re: Unibox for Newbies Hello Audio Experts UniBox has a calculated field called 'Suggested Box Type', giving closed, vented/horn, etc., and the explanation says 'box type indicated for woofers'. I have made screenshots for port tunig in 138 l cabinet (4.87 cubic ft) with port diameter 7.50 cm. ![]() If I use 'theoretical' response the results are the same but if I use FRD file for Dayton DC300 in UniBox, the difference is huge. These are not required, however Pe (RMS Power Rating) will give a good idea of how much power signal input to model with.Įnter the number of voice coils. I am comparing WinISD simulation for port tuning with UniBox. This will cause some other fields to auto calculate.Įnter Hc, Hg and Pe if available. If Mms and/or Cms were not provided for input, now input Qes. If Re is not available, go ahead and enter Sd and Bl.Įnter either Qms or Rms, whichever is available, generally Qms is available. This will result in more auto calculations being made, but Qms and Qts will be blank. My designs are mainly subwoofers and has done well for that. Bassbox is only one I paid for and is getting a little old. Currently, I use Bassbox Pro, REW and XSim. If Fs and Mmm or Cms are known enter Fs and the other known value.Įnter Sd, Bl and Re. 1 From a discussion that started in a speaker review,thought it would be helpful to have somewhere to share what tools you might be using to design and test speakers. Tip: Create a Zip file with the individual driver file in it as you cant upload WinISD's native driver file to this site.Įnter Mms and Cms which results in Fs being calculated. I know there are lots of folks running the B&C drivers, Dayton PA460's, Infinity 1260, 1262's, Stereo Integrity HT18, HT18 v2, HST-18, etc. That way whenever the next big Enclosure/Driver combo comes out, such as the VBSS v2.0 or Martycube Redux, or whatever it may be, the driver files are already out there for folks to snatch and model themselves. When I get home tonight I will try to upload a couple I have, but figured there have to be a TON of us out there that have files we could contribute. I'd like to get that started on this site as well since I know lots of us use different drivers that dont always have a pre-existing WinISD driver file. I'm guessing that some of the later studio tannoy designs might also be worth analysing to see how they behave (in theory).On another forum (I wont mention) they have a thread where folks post the actual WinISD Driver files for different subs so folks that aren't good at inputting the data right can just download a already working file for use in simulations. ![]() I was wanting to at least get some predictions of the behaviour of the designs I can find online. ![]() So that brings me to what software to use to get some sensible predictions for a given design? Is there a package of choice that people are using for such analysis? Of course in an ideal world i'd try both, but i'm not sure the missus would appreciate two sets of 100+ litre cabinets in the front room So, i'm somewhat torn between building an original design (which would be fun, i'd probably build a pair of Ardens, that sort of size and design) or tweaking the design to something original based on more modern analysis. What i've realised, looking at the various online resources for the original Tannoy cabinet designs is that the traditional ones pre-date the Thiele/Small theory papers, and hence are really designed and tuned by ear, or by outmoded analysis techniques. Having recently got a pair of Tannoy Gold 15 inch drivers (actually HPDs with the cones replaced with gold style ones) the next step is building a set of cabinets for them.
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