Soundjunky
Active Member
Hi folks, dropped a C12 that is not well known and far & few between. Cosmetic damage, but it looks bad. WantWantPics:
MTX C12s, dropped one while moving it, New Cabs?
- Thread starter Soundjunky
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Soundjunky
Active Member
I want to build new cabs to replace the damaged cab or both. These aren't well known, but they were well balanced, not your regular large speaker & I like them. I still haven't inspect the crossover, but the 1" dome horn & 5" midrange integrated by mounting plate are strong. I did remove the woofer and the mid is internally isolated. Still need to look at the crossover. If sonic issues surface because of the drop, I may have to strip them out. If do have another set of cabs, that if the tweet & mid plate fit, I could swap the parts over, as well as the rear 3 inch ports. Here are a few pics of the other cabs they are Abstract Audio ASX Pro 400s, made in Canada in 2002-3, they were bought out by another speaker builder in Canada.
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Soundjunky
Active Member
Front firing ports are 2.5", but I'd like to put my 3" ports in the speaker cabs, if the 2.5s don't seem proper. I had collected (sub)woofers, carbon fiber 6.5 mid-woofers & 9"x9" horns for these cabinets, all I really needed was the right crossover, which I finally on the bay, but didn't have the cash to spend ($50 + $17 shipping). Woofers would have handled 10Hz to 300Hz, mids handle 200Hz to 2000MHz and the Bi-radial horns handle1.500MHz to 22,000MHz. That is why I have been looking for so long, the frequencies are hard to find. The woofers cover a range that starts in the sub range, the midrange was a mid-woofer, but the short range is handled easily. The horn is an Eminence Bi-radial horn which handles 220watts and handles a lot of range. With 2-3" ports will handle the 12" JBL driver & the mid-woofer will handle the lighter bass duties in it's own unported enclosure. I just need to build the correct midrange that stops the woofer at 300-200Hz. Another circuit to allow the mid to start at 200-300 Hz (maybe 400) and stop at 2000MHz The horn needs to start at 1,500 MHz and go up, although the mid-woofer could handle 3000MHz, likewise the horn could start 2,500- 3000MHz. My crossover skills are limited and still learning, I have a subwoofer crossover that stop the frequency at 150Hz @ 8ohms, but should raise to 250Hz because the sub-woofer is 4ohms I have found a set of 2 way crossovers that if modified may support the mid & tweeter. The sub crossover is Speaker Lab & the 2 way is Infinity. My main issue is adjusting the proper caps & I have many used woofer & midrange choke coils to choose from, to put the drivers in the correct frequencies. Here's pics of the horns & woofers, I still have the mids packed up inside somewhere.
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Soundjunky
Active Member
Ooops! didn't get the pics on.
ouimetnick
Hafler Fan!
I only see a small chip on the lower front left. Nothing to be concerned about unless the magnet on the woofer broke loose. Read up on how to fix speaker cabinet corners, or (since it looks so small) leave it alone.
gdmoore28
Super Member
I agree. Just use a Sharpie black marker and color in the injury. Then forget about it.
GeeDeeEmm
bowtie427ss
Lunatic Member
Maybe of the feet and bottom of the cabinet.
More pictures.
