Sorry to have another Home audio related thread.......but,
Presently i'm really trying to figure up a xover design for speakers i currently own, i'd love to build the Zaph waveguide like i wanted, but money is an issue after spending what i have on my car, and still having drivers sitting around that i'm not using. I never play my current bookshelves loud, everyso often on movies, but thast rather excessive.
There all raw drivers and i'd really like to use them in a 3way design. The Midbass i have is the Dayton RS225 and i also have a pair of Seas CA18's that can be used, Midrange either the Dayton RS52 or CSS WR125, preforably the wr125 for aesthetic preferences to blend well with the RS225, but the RS52 is definently a consideration because of the very low distortion midrange and wide offaxis response for those not sitting in the sweet spot. As far as tweeters/planars that i have, i have a nonbacked Neo3 which i've heard raves about, VERY low distortion, and thought about using it possibly OB in the tower, I also have a pair of LPG 26nafm's, which are metal domes that don't have the typical metal feel or sound to them.
Anyway i'm wondering if anyone has any proposed xover designs for these drivers, or could help steer me on my way to building the 3way i've been trying to for the longest time.
My only problem thus far is lack of knowledge or software to appropriatyl design xovers, Level matching through passives is a must because of the low SPL of the WR125.
I currently don't have enough of a budget to afford an active route, as amlification as well as a behringer dcx2496 is quite over my budget. Any help would be very appreciated.
Aim/Yahoo messengers is demon2091tb
I'm really considereing the RS225/WR125/Neo3 combo for a 3way, (always wanted a 3way high def towers), and my substage is completely taken care of, all i need is another plate amp like i have and wahlaa.....
Anyway Pics of my intentions.....
Thats a 7cf enclosure for the single tempest, i'm planning on building another to match it but dropping the tuning a down to 15/16hz, which should still give me plenty of output doubling cone area and power, with added low end output. Will be redoing the insides as well to add dial rods for bracing as well as probobly a new finishing job.....the carpet job is just horrible.
If anyone can help me design a xover for these i'd love it......i could use manufacturer specs as a good starting point, just need help with values for individual parts. Level matching, and hp/lp seems to be all that is needed, no BSC is really needed that i know of (they will be pushed up against the wall, 10-12" wide baffle. Also in some ways i beleive 2nd orders can be used throught as the bandwidths overlap rather nicely. Only EQing i see that can be built in may be on the WR125 around 4k as there is a dip in response.
There's a LOT of info on that page, and a spreadsheet.
Anyway, if you want to do it right with 12dB/oct crossovers and Zobels and the attenuation circuit, it is going to be big and expensive. Those coils aren't cheap and you'll need eight of them.
If you want to do 6db/oct then it won't be so bad, but it won't sound as good.
If they were mine, I'd run the Daytons at 80-1200Hz, the CSS at 1200-3000Hz, and the BGs from 3000Hz up. You could drop the Daytons below 80 if you want, and the crossover point for the mid and tweeter could go up to 3750 or so, if you want.
I was just considereing dropping the daytons down to 50hz or so with a ported enclosure, hopefully that would give me the steep enough natural roll off point.
My projected ideas were basically to xover the tempest pairs down around 40hz, active (built in plate amps lowest variable xover point), daytons ported to ~45hz for natural rolloff or so on up to a good 200hz 12db, no BSC (going to be very close to rear walls, with port most likely on the front, can also do rear if needed) a sealed chamber for the midrange to help with the roll off, 12db at 300hz-400hz, on up to 4k or so, 12db, then blend the tweet in from there on, with lpads to get them level matched.
This is just a guess based on distortion, imp graphs and FR's graphs i've looked at. How expensive would i be looking at for each side. I would like to go the active route, much simpler in the long run, but after going active and all in the car like i have, going so heavy in the house seems rahter bad, well at least in my parents view, or i would have already done it. DCX2496, and rack amps, only problem is i don't need 100's of watts of power for tweets or midrange, mabey on the midbasses, but i only really need 50or so per tweet, but then again thats also hard to find for home audio, unless there recievers......