Some of you may remember my purchase of a Pro Box Rocks 12" a while back, all the info I can dig up on it is the power ratings. Anybody got some ideas on enclosure size? I was thinking starting off in the sealed .75 range and working down from there. This will be a very SQ oriented setup by the way, with about 400 RMS from my Power 1000.
Replies (5)
swez on 01/20/2008 20:13:26
You might want to contact ProBox and see what they recommend. Most of the enclosures they build for the 12" woofer are ported and have no specs to speak of. Here's link to contact them and see what they recommend:
proboxrocks@aol.com
I would venture to guestimate their 12" sub sealed, would be closer to 1.2 cf. If that sounds a bit boomy and sloppy, just add internal block bracing materials until you get the deep lows, but also good punch too.
Anyway, shoot them an e-mail with the sub model number and see what they recommend. Their 10" sub in a ported Ford box sounded awesome at 400-500 watts RMS.
Swez
PS Ahhh, found this "sealed box" from them for the 12" sub. A whopping 1.3 cf w/o the woofer displacement:
http://www.proboxrocks.com/products/enclosures/unloaded/hatchback/112HB/index.shtml
Grdevs24zero on 01/20/2008 20:40:25
Thanks for the links, I'll be sure to give them an email for verification.
swez on 01/20/2008 22:19:30
Good idea! I don't know how many sub versions ProBox offers, but it's always a good idea to get recommendation straight from the source.
Good luck,
Swez
Grdevs24zero on 01/27/2008 21:18:50
All I got out of them is a kind of "follow our example for good sound" type of response. So I built a sealed box with about 1.4 cubic feet unloaded. Other than a small leak from the mounting surface (didn't get the gasket on right) it takes tones down to about 27 hertz pretty well. Surprisingly well actually. Anything lower than that and it starts to get a little strange sounding, but then again, I don't recall any of my music making tones lower than about 35 hertz. I may add some fill to see what kind of difference it'll make, better or worse, but overall I'm pretty happy.
I also got my new Vifa tweeters, Dayton 7" woofers, and Power 1000 in. I'm almost ashamed to have bought my Polk SR6500's when less than 200 dollars in speakers and some heart-filled install time could have net me an extremely comperable sound. You live and you learn though.
swez on 01/27/2008 21:39:08
Yes, this is a process of live and learn. But the Polk's have excellent crossovers and above average drivers to match. They cost more because more hands are in the profit loop.
On the sub issue, it seems you may want to seal the leak(s) and perhaps allow the sub to break in for a while. (30-40 hours will do) If the sub seems a tad sloppy in the low end, then add internal blocking bracing to make the internal airspace samller to tighten up the woofer response. You may find after the sub breaks in, 1.0-1.2 cu.ft. is just about right for sealed use.
Swez
Replies (5)
swez on 01/20/2008 20:13:26
You might want to contact ProBox and see what they recommend. Most of the enclosures they build for the 12" woofer are ported and have no specs to speak of. Here's link to contact them and see what they recommend:
proboxrocks@aol.com
I would venture to guestimate their 12" sub sealed, would be closer to 1.2 cf. If that sounds a bit boomy and sloppy, just add internal block bracing materials until you get the deep lows, but also good punch too.
Anyway, shoot them an e-mail with the sub model number and see what they recommend. Their 10" sub in a ported Ford box sounded awesome at 400-500 watts RMS.
Swez
PS Ahhh, found this "sealed box" from them for the 12" sub. A whopping 1.3 cf w/o the woofer displacement:
http://www.proboxrocks.com/products/enclosures/unloaded/hatchback/112HB/index.shtml
Grdevs24zero on 01/20/2008 20:40:25
Thanks for the links, I'll be sure to give them an email for verification.
swez on 01/20/2008 22:19:30
Good idea! I don't know how many sub versions ProBox offers, but it's always a good idea to get recommendation straight from the source.
Good luck,
Swez
Grdevs24zero on 01/27/2008 21:18:50
All I got out of them is a kind of "follow our example for good sound" type of response. So I built a sealed box with about 1.4 cubic feet unloaded. Other than a small leak from the mounting surface (didn't get the gasket on right) it takes tones down to about 27 hertz pretty well. Surprisingly well actually. Anything lower than that and it starts to get a little strange sounding, but then again, I don't recall any of my music making tones lower than about 35 hertz. I may add some fill to see what kind of difference it'll make, better or worse, but overall I'm pretty happy.
I also got my new Vifa tweeters, Dayton 7" woofers, and Power 1000 in. I'm almost ashamed to have bought my Polk SR6500's when less than 200 dollars in speakers and some heart-filled install time could have net me an extremely comperable sound. You live and you learn though.
swez on 01/27/2008 21:39:08
Yes, this is a process of live and learn. But the Polk's have excellent crossovers and above average drivers to match. They cost more because more hands are in the profit loop.
On the sub issue, it seems you may want to seal the leak(s) and perhaps allow the sub to break in for a while. (30-40 hours will do) If the sub seems a tad sloppy in the low end, then add internal blocking bracing to make the internal airspace samller to tighten up the woofer response. You may find after the sub breaks in, 1.0-1.2 cu.ft. is just about right for sealed use.
Swez
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