Originally Posted by Pradeep2
For example, it's about using multiple very cheap 12"JBL drivers to outperform what an Ultimax 18 can do, when using 4 of the 12s for example. In addition to outperforming the um18 down deep, four of them also deliver more mid bass.
With four cs1214s running around $120, you can see the value compared to a UM18 which currently sells for $325.
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FYI: I"m not using UM18. I"m using UXL18 and they generally go for 750.00 / driver. I have seen some selling on AVS for 500. I got mine though for 450 both
. It was just an amazing deal. But, I do see your point.
Originally Posted by trilkb
Yup, 4 of these in a single enclosure, around 1.5 to 2 cuft, with a dsp amplifier or mini dsp, is what it's about lol. If you've heard of the vbss its similar, it simply will not work without dsp and 4 drivers minimum. I'm very happy and have zero regrets going with this setup, the first DIY subwoofer I built blew my mind, but these can blow your mind as well has get dialed in to have amazing sound quality and you get the benefits that 8 subwoofers have over one or even 2. All for cheap.
As for dsp, I have minidsp/Inuke. I prefer minidsp though. I also use MSO (sometimes) and then finally Dirac to calibrate my system. I'm quiet familiar with dsp and use REW on almost daily basis
. Honestly my UXL18 in Mini Marty are not bad at all. They sound very good but I doubt it that 1 18" UXL driver will match 4 of these in Mid-Bass region in terms of chest impact. Low bass though with these drivers, I have no complain at all. Mid-bass for movies, I think they do fine but might like a bit more and I'm sure that these ones will shine in that region.
Originally Posted by jcmccorm
As the previous couple of guys have stated, it's about these inexpensive JBL 12" sub drivers to use in home cinema / home theater subwoofers (not in a car). You need multiples of them, but they are cheap. I'm currently working on boxes for 8 of them.
Thread Link? I might go for them as well. I recently built a 15" sub for NF and it was designed to be tilted to fit nicely behind a recliner. I was able to do it all from scratch and got decent resluts. Made some mistakes on my way to build it but nothing drastic. So building these won't be as big of a challenge I hope.
Originally Posted by mlkmgr
I have 8 upfront connected to a Inuke 6000dsp and am sitting about 7 feet from the speakers. My 6 year old and I were watching Maze Runner and he asked "are the chairs supposed to be vibrating?" So much bass throughout that movie. Just a big ass grin on my face through the whole movie as the bass hit.
I have 2 Mini Marty and they both are ~45" away from MLP. With 10dB of boost, no one in my HT will ask if the seats are vibrating. Its more than that. Ported 18" Mini Marty are no joke when it comes to Low bass impact. My hair on my head jump when I demo heavy bass movies. Its next step to seat shaking I guess. I have a picture hanging on the outside wall of back wall. That picture falls every time. I have 2x4 acoustic panels hanging on the side walls and sometimes they fall off if I go up to 13dB. All that with 10-13dB of bass. And here is the funny part. The low frequency (below 30Hz) is bad in my room. I have to boost it to get a bit more there. I'm no where close to flat below 20Hz but imagine if I was
. So when it comes to shaking, I have to control it. If I go up to 15db, things get very scary. Seat starts feeling like its getting waves if that makes any sense. I start feeling weird in my stomach. Watching WOTW/The Howk/A Quiet Place/Tron gets me every time and that's with 10-12dB. I demo these movies only when wife is not home
. I wanted to see how much it shakes with 10dB. I played the scene in my HT (fully sealed room in basement) and walked up to the 1st floor. Everything was shaking/rattling. Doors shake like someone is holding the knob and shaking it while its locked. Even on 2nd floor, the frames on wall shake errrrrr.
Now I'm not saying that having 4 12" drivers won't deliver that much. May be they will but when it comes to low bass, Mini Marty Ported are no joke specially when you pair it with a good driver like UXL18.
Here is the FR in my room just to show what my system looks like.