Electrodynamic

That's true, dual 12's would work in 5 cubes ported.

You can force the drivers in a box that small, but the performance won't be there. Sure they'll be louder, but the alignment is just too small. And even then, that 5 cubes must be after port and driver displacement.

Well I have the pictures on my computer but I can't upload them to our site yet since we just changed everything over. Sorry guys.

Thanks mang. We really like it too. It's a LOT easier on the eyes and Cliff is still working on a few additions to the web site that will really get people involved with it.

I just used ie and it loaded in about 2 seconds.

They look pretty good to me. You're only seeing the top part of the box in the pics.

The thicker the drywall, the less efficient the transducers are and the more it alters the frequency response. The transducers we use designed specifically for standard thickness drywall. ...on a side note, we are going to try fixing some of them to the body pannels of cars and see what happens - people down south LOVE it to be loud outside their vehicle. Instead of mounting horns under your car, why not have your body panels make sound? Oh, and the Line Array project is still active. I just took down pics on our site because (as usual) everyone tried to pick them apart and find out what drivers we were using, whether they were our own or someone elses. If anything, they should have been concerned with what kind of crossovers we were using. But that's beside the point. The Esprit's are SO distortion-free that it spoils you. You listen to them at what you think is a normal level but when you go to talk to someone next to you, you can't because it's so loud. But it doesn't appear loud. Absolutely ZERO listener fatigue. Most people live their entire lives without ever experiencing zero listener fatigue, but the Esprit's give it to you every time you sit down.

Hrm...very true. And you're right, we will publish the specs of the new Mag's once they're out. I'll see what I can do for a link to the previous BM and Mag's.

The in-the-wall transducers are providing all the sound. The transducers attach behind the sheet rock and essentially make the drywall a speaker. And before you think "man, it must sound muffled", it doesn't. Everybody thinks that, and then they listen to them and go "wow." The transducers are good from about 90 Hz all the way up to 16k Hz (which is where most males can hear up to). It's super neat when people sit and watch your system for about 10 minutes before the confusion becomes too much to process and they ask "where are your speakers?" And with 16 transducers up front and 4 in the rear, loudness isn't a problem even with 120 watts x channel. If you take a look at our HT web page we have a picture of our demo room that has 16 transducers in the wall surrounding the screen. You can try to find them if you want, but honestly you'll be wasting your time. The drivers are behind the sheet rock. They are literally invisible. Processing and amplification is all done in the receiver. The Denon does everything we can ask from it; it decodes in more formats that we've ever thrown at it; it up-converts all video sources (you play a VCR on your 1080p TV/projector); etc. For performance and budget, a HT receiver was the way to go for this particular installation.

Nope. Four 12's was over-kill enough...no need to have more surface area and/or more output. Size was also a factor. The decahedron (sp?) is the project up in Michigan with 10 10's.

There, I beat you to it.

I know this thread is a teaser because we don't have the pictures uploaded yet, but as of last night we finished up our latest HT. The system includes a Denon 7.1 receiver, Denon up-converting DVD player, Panasonic 1080p HD projector, HDMI cabling, 20 Hidden Audio transducers, 124" 16:9 screen, Lutron automated lighting, MX900 remote, 2400 watt amplifier, and four BM 12's ported to 30 Hz in a 12 ft^3 box. The neat thing about using Denon receivers is that the upper models (this customer has a 987 model) have a 7 band EQ per channel, where each channel can be EQ'd independantly or the same EQ setting applied to all channels. The receiver is also super user-friendly and very little setup is required, although you can still go in a tweak the hell out of your system if you want. We watched Top Gun last night after we were done and the bottom end of his system is incredible. Both Marty and I like the way the four BM's perform better than we do the four Mag 15's IB in the ceiling. #1, the BM's are floor-placed, where as the Mag 15's are IB in the ceiling. The bad thing about ceiling IB systems is that since the enclosure is your attic, the drywall moves slightly (not enough for you to see of course) the further you get away from the drivers location so you loose SPL due to cancellation. Having said that, the floor-mounted BM's SLAM! They are incredibly loud even though they're not moving any further than 10mm total. The quatro of BM's operate effortlessly - never moving far enough to warrant any kind of distortion even at ear-splitting levels. There are numerous scenes in Top Gun where the jets are taking off or flying by and the bottom end that the BM's deliver is just intense with impact. The extremely low part of the booms were moving my shirt and jeans when I was sitting on the couch approximately 15' away from the subwoofer enclosure. We're going to go back to the house to demo some of our CD's and DVD's to the home owner pretty soon, so we'll definitely get a better feel for what the system is capable of at that point. The subwoofer enclosure should be covered by that point as well (the enclosure is raw MDF because a decorative cover is being made to conceal the enclosure to where you can't tell that it's even there). Anyway, I'll try to post pics of the screen and the subwoofer tonight or tomorrow!

Our newly designed web page is now up!! Many thanks to Cliff, "the abunai", for putting it all together for us. As many of you are thinking, the Mag, BM, and Home Theater pages are going to be updated shortly. But anyway, I love the new web page. Let me know what you think.

Although I am considering the idea for these new Mag's. Considering is the key word there. First we need to get the 12" proto in to see if it measures up in the real-world.

Haha. Well, I have to be a little PC on here.

I had thought about it, but like Ryan said, it would take a LOT of requests for me to even start working on a 10" model. I'm consumed with the 12" and 15" model right now (and yes, I've been working on them FOREVER but this time around the drivers are going to be leaps and bounds better in the SQ area). Every production run I get about 20 or so emails asking about 10's and they all want different coil configurations - quad 1's, dual 1's, dual 4's, quintuple 8's (kidding), but hardly ever dual 2's. So until there is a solid need for a driver with a specific coil configuration, I'm not going to busy myself with the project. However, a 10" Mag would be pretty cool.

Yep, a BM is right at home ... in the home. We use 12" BM's in IB installations now and we're in the midst of powered 10" sub using the BM design.

Ok, here's a little more information for you SSA people. The basket used on the new Mag is going to be enclosed (or a wrap-around style). The mounting depth should be under 135mm (5.5") Voice coil diameter is going to be 3", aluminum former, copper windings. It will have a shorting ring in the motor to help with inductance issues (even though the inductance is being cut in half compared to our current Mag I'm still putting a shorting ring in there) As of now the basket will be black with a chrome or polished backplate. Paper cone/foam surround (we've been doing research on how cone material affects sonic performance - and yes, even if cone breakup is above your crossover point, lower harmonics still creep into the subwoofer bandwidth and color the sound - which is why we have chosen to go with the particular blend of paper that we're going with). Power handling will be 1000 watts. Enclosure sizes for the 12" are 0.8 to 1.1 cubes sealed and 1.8 cubes ported to 33 Hz. Better SQ, MUCH shallow mounting depth, slightly lower peak excursion, same efficiency, and the same ability to get really loud if you want to.

The basket isn't optimized for a 3" core due to the smaller spider landings, so if you've got a 3" moving assembly I suggest not using it because you're limited to a 7" spider. But if you're going to drop a 2.5" coil in it, it'll work just fine.

Well it would have been here, but someone up-rooted it on ca.com and was asking me questions. I usually let my reps know in advance, and have done so...but just haven't posted up on here because I've been too busy. Sorry guys.

Thanks for the review Jim.

WOW!! Congrats on the score and the record Marcos! 150 dB at 20 Hz is beyond impressive. Expect to see a good bit of tht demo car page taken up with purple once things are switched over.

HOLY CRAP that's some flex!! And that's also one heck of a score from a single 15 in a trunk install! Great job my man.

LOL! I'm glad you like it. It's always nice to see people enjoying the Mag's and using them for what they were intended for. With a driver that is as efficient as a Mag is, the usual response is "wow" due to how they perform off such little power.

You should have seen the pics of the SPL Mag we had built a while ago. It had a lot of special additions that our Mag's don't have (even the glue was different), and it arrived to us in a standard box with no packing. Come to find out, the original packing was GONE from the build house and they re-packaged it in a box with no packing at all and then cut out the cardboard around the shipping label from the original box and taped it onto the box the woofer arrived in. The guy who delivered it said "I thought it was a bowling ball the way it was rolling around." The motor on that driver was f*cked - the pole/backplate had shifted due to how much it was thrown around and there were tiny magnet shards all over the place. I'll see if I can dig up the pics when I get back tonight.