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Dual GJALLARHORNs! - Page 18

post #511 of 758
Thread Starter 
Quote:
Originally Posted by yelnatsch517 View Post

Reflections are not just horizontal. A null can be created from reflections off the floor and ceiling. What you have is most likely a room mode.
What room treatments do you have in that room? Just out of curiosity and for experiment, try dangling several bass traps from the ceiling and take some measurements.
You probably wouldn't leave those permanently, but it's definitely worth the information if you encounter something similar in your next room.

Here's a link to some info on room mode.
http://www.realtraps.com/art_modes.htm
Notice particularly the quote from the below test done in an empty garage:

Right now only bass traps in each corner and and a panel at the first reflection point for the mains. I haven't been doing much more with treatments since this isn't the permanent theater room. In the permanent space I'll definitely need panels on the ceiling since it's going to be a wood ceiling.
post #512 of 758
Ricci did you ever post a link or something to have your dual 15 Type R plans for the Ghorn?

Was getting ready to go to the printers and saw I did not have the plans Just the regular 18 plans.
post #513 of 758
would dual LMSR 15 work in the GH? If so wouldn't that have more input than a single 18?
post #514 of 758
Dual Lmsr's do not work.


I thought I sent you those Chrapladm...
post #515 of 758
I cant find them anywhere. I have the updated plans for the single 18" though.

file starting with 546B6a from dropsend email. I believe I downloaded that file and the file that I am mentioning is the updated 18" plans. I can see the 18" plans I just dont know if I downloaded them from the dropsend link with the file number starting with546.
post #516 of 758
After hearing how clean and low distortion a LMSR driver is on my 3 dts 10 modded lmsr 12 I would opt to stay with the LMSR and do the single 18.
post #517 of 758
Thread Starter 
Both horns are painted now and back in the theater room.

I built two platforms on wheels so I could move these around easier, and I was hoping I’d be able to just leave the subs on the platforms. However, that didn't work out..at all. Even though I had 7 wheels on each platform, it just wasn't “sturdy” enough to deal with the amount of energy that is being pushed to the bottom plate of the horn. Mid-bass response was almost non-existent, but sub 30hz was normal.

I’d put my hand on the platform and it was just going nuts. I took the sub off the platform and everything was fine again.

That panel is the least re-enforced, since the driver is in the way and there is the hatch panel, so it doesn't surprise me.
post #518 of 758
I got the opportunity to hear these tonight in person, I have never experienced the kind of raw muscle these things have between 15-30hz. The couch I was sitting on felt like it had bass shakers installed, we listened to "bass i love you" as well as several other tracks/scenes. I have heard everything from submersives to caps to different diy horns and have never felt this level of raw violence down low. The whole room was moving, walls were flexing in ways that had me questioning the structural integrity of Luke's house.
post #519 of 758
Sounds fun...

Luke how are these treating you anyway? You've not said much lately. Do these have enough headroom for you <60Hz?
post #520 of 758
Thread Starter 
Quote:
Originally Posted by stormwind13 View Post

I got the opportunity to hear these tonight in person, I have never experienced the kind of raw muscle these things have between 15-30hz. The couch I was sitting on felt like it had bass shakers installed, we listened to "bass i love you" as well as several other tracks/scenes. I have heard everything from submersives to caps to different diy horns and have never felt this level of raw violence down low. The whole room was moving, walls were flexing in ways that had me questioning the structural integrity of Luke's house.

What's crazy is that we're sitting on a concrete floor, and the carpet is also very thin with no padding. You, being a bass head like myself, were also watching the driver excursion while playing the crazy SPL levels, and I think the most we saw was about 1" peak-to-peak. Plenty of room left!
Quote:
Originally Posted by Ricci View Post

Sounds fun...

Luke how are these treating you anyway? You've not said much lately. Do these have enough headroom for you <60Hz?

I'm thrilled with them, and their output across the board should be enough for any sane human. Unfortunately, I don't fit that description...





We're going to find the sweet spot where the GH takes 12 to 35-45hz, and the Othorns take 35-45 to 80-100hz. It'll take some tweaking to find that range, but I'm sure I'll end up with something insane biggrin.gif
post #521 of 758
That is gonna be on another level...again smile.gif
post #522 of 758
To be honest I like the Othorn better than the GH. It doesn't go near as low but it is much cleaner through the typical crossover region, is smaller and has more headroom >30Hz while still capable of a room crushing 25Hz. There are just a lot of compromises when you try to push a horn down as low as the GH most of which the Othorn avoids.
post #523 of 758
Thread Starter 
Quote:
Originally Posted by Ricci View Post

To be honest I like the Othorn better than the GH. It doesn't go near as low but it is much cleaner through the typical crossover region, is smaller and has more headroom >30Hz while still capable of a room crushing 25Hz. There are just a lot of compromises when you try to push a horn down as low as the GH most of which the Othorn avoids.

Yeah, the GH does require some heavy EQ at quite a few frequencies above 60hz, but what it was designed to do with 12-35hz material it does insanely well and efficiently. You designed one heck of a sub with this one.

I'm so impressed with this one that I have no reservations at all about what the Othorn will accomplish from 25-100hz.
post #524 of 758
Yeah I really felt like the GH+ the Othorn would be the ultimate combo, I felt myself wanting more in the 45-80 range then the GH could do. It's an absolute monster down low though. I think if Luke can find that healthy balance between the two that bass nirvana may be achievable after all!
post #525 of 758
Luke - You're an animal, man. Setting the bar real high here. cool.gif

Josh - Would the Othorn need to be high-passed at 25hz or can it be eq'd lower to bring the tail up a tad? I get a ton of room gain below that and wouldn't need much. In the event I were to build some of these, it seems the Othorn may make more sense. Edit: Just saw on your site you're using a 24hz HPF - scratch that. smile.gif
post #526 of 758
Ya the G-horns down low are quite fun! I ended up only using 1 in the end. Getting them and my sealed 21's to play nice was a full days affair lol. I must be in the crazy zone as well because my room sucks as the back is open to the entire basement and you need some serious power to get to a level you want. that being said. 2 G-horns plus my sealed subs just don't fit without 2 many compromises (moving seating forward, loss of access) My compromise was to take 1 horn out and that works with my. I did buy 2 more fp14 clones and as soon as Mark has the 21's ready, I'll get my 4 more and really have some serious destruction lol.

i do want to build a otterhorn but I will build it myself. the cab guys that built mine did a pretty good job but I could have done just as good of a job myself. Once I get back from NY, I'm gonna start building. I'm gonna do one of Mikes microwreckers as well.
post #527 of 758
Thread Starter 
Hey guys, I just opened a thread for the Othorns:

http://www.avsforum.com/t/1475195/dual-othorn-build
post #528 of 758
Does anybody have a contact and price for a shop to build one of these? Thanks
post #529 of 758
Price is directly proportional to distance. Whatcha got planned?!
post #530 of 758
Just looking to get 1 for now and take it from there. Depending on how that sounds, I may get an Othorn or do another Gjallarhorn. I'm in North Carolina.
post #531 of 758
Thread Starter 
It'll most likely cost somewhere between $600-$1k for a cabinet shop to build you one.

The only way to find out is to take the PDF and the build pics from page 1 and see if any cabinet shops are up to the task.
post #532 of 758
Quote:
Originally Posted by lukeamdman View Post

It'll most likely cost somewhere between $600-$1k for a cabinet shop to build you one.

The only way to find out is to take the PDF and the build pics from page 1 and see if any cabinet shops are up to the task.

blah, good luck with that lol I had 18 places turn me down before I finally found someone to do it. I was charged $500 a cab unfinished.
post #533 of 758
^^$500 seems like a great price for a horn of this complexity.
post #534 of 758
Quote:
Originally Posted by NWCgrad View Post

^^$500 seems like a great price for a horn of this complexity.

I sure though so! I was fully expecting to pay $1000 a cab to be honest.
post #535 of 758
I hope I can find a deal like that.
post #536 of 758
Quote:
Originally Posted by autox320 View Post

subscribed! This should be good.

lol. This was great. biggrin.gif
post #537 of 758
Quote:
Originally Posted by redliner140 View Post

Just looking to get 1 for now and take it from there. Depending on how that sounds, I may get an Othorn or do another Gjallarhorn. I'm in North Carolina.

Where in NC? I want to build one but don't have the space. Ive built the F-20's and several other cabinets, I might take a bite out of one of these for a good price. I also have an excellent shop in town that might do it as well and their expertise is second to none (They build all the Danley cabinets and subs). I am located in Asheville
post #538 of 758
Wow danley subs are built in asheville? also 500 does seem like a great price considering price of 3/4 BB
post #539 of 758
Quote:
Originally Posted by BadmanSound View Post

Wow danley subs are built in asheville? also 500 does seem like a great price considering price of 3/4 BB

I know right.....
Well technically Candler lol http://qualitymusicalsystems.com/

Watched Looper again with my brother before i deployed again. It hammered us using the dts-10s. I couldn't imagine the G-Horns, they have to be scary. Wonder if home owners insurance gave a damn what some have for subs on this board biggrin.gif.
post #540 of 758
Thread Starter 
I just started a thread for the construction of my theater room:

http://www.avsforum.com/t/1494510/lukeamdmans-dedicated-theater-construction

I'm looking for input on how to really beef up the walls.
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