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So here's an unusual question... but hopefully a fun theoretical exercise
I have a pair of MLTL cabinets built for the Rival R176p woofers. The design is a wonderful one someone in the FB Tline group shared with me, I believe one of Paul Kittinger's, based on the use of the MJK worksheets and Paul's normal formatting style. I was very happy with the limited listening I had of these woofers in these boxes; really great low end performance.
The project has unfortunately stalled out; some of you may know one of my hypex fa123 plate amps died, frying the voice coil of one R176p. It is becoming increasingly clear that I will not be able to find a single r176p (no one privately has singles to sell, RAD doesn't reply to my inquiries about singles). However, I am determined to finish out the project, hopefully without much additional $ outlay. To that end, I do have a whole pile of other Rival 7" drivers that fit the cutout. Namely:
Rival r176 cpc 8 (the version that looks identical to standard 176p) x 2
Rival r176 cpc 8 (shiny coated cone, convex dustcap version) x 2
Rival r176 cpac-08 x 2
Rival r176 cfc-04 x 2
Rival r176 kvc-08 x 2
Rival r176 kapa-08 x 2
I also have a pair of r182 KMO but those won't fit the cutout. Looking at this list in retrospect, I wonder if I bought more of these than anyone else? Kind of crazy. Hoarders gonna hoard, I guess.
Anyway, in an effort to salvage my project, I have been thinking I could measure all these woofers with DATS, and see if any of them work in the same MLTL enclosure. The problem for me is, I can't replicate the design, since the MJK sheets aren't available anymore. And for whatever reason hornresp defies my best attempts at understanding, so I don't know how to translate the sim to that software, or to be honest even what the critical similarities/differences in response to look for would be.
Now to my question - what if I model the MLTL as I built it, with the R176p, as a standard bass reflex box? I would use say, Bassbox Pro, VituixCAD, or whatever FRD consortium tool is appropriate. If one of the other rival woofers gets me close to identical response in the 'normal' BR model of the MLTL, is that a good fit? Or is there some unique aspect of MLTL design that would make two woofers that would work well in the same BR box not work well in the same MLTL?