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2 Wolfhorn SDX’s as a riser - Page 2

post #31 of 54
10/13/11 at 12:15pm
Quote:
Originally Posted by FUN4ME View Post

Is the UCA222 considered a USB sound card?

It is indeed.
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post #32 of 54
10/14/11 at 11:26am
Thread Starter 
Quote:
Originally Posted by BIGmouthinDC View Post

Mr Fun, Let me guess, you are not married, right?

That is dedication to LFE for sure.

Actually I am happily married we just celebrated 5 years earlier this month.
She has let me have what ever I want in "my" room.
Here are a few more picks of the completed room.




That funny spot in the screen isn't really there.
Having my first official movie night tonight with my niece (5 ) and some other friends
I am off to get How to train your dragon. I hear it has some good LFE
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post #33 of 54
10/14/11 at 11:46am
Can I come over? The finished room looks amazing.

How to Train Your Dragon is the perfect movie to tell you whether you need a highpass or not. Let us know how it works out
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post #34 of 54
10/14/11 at 12:31pm
Thread Starter 
Quote:
Originally Posted by Oklahoma Wolf View Post

Can I come over? The finished room looks amazing.

Yes and Thanks
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post #35 of 54
10/14/11 at 1:18pm
That looks gorgeous man...especially since you have basically hidden them. Truly a work of art
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post #36 of 54
10/14/11 at 3:44pm
Great work on that riser! I love to see integrated bass-makers! You did an awesome job hiding them. Excellent for WAF, even better for scaring the heck out of relatives.

I wonder if those thunderstorm CDs have any deep LF. If so, on Halloween you should totally open the windows and play it; I think it'd sound pretty menacing.
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post #37 of 54
10/14/11 at 4:08pm
Quote:
Originally Posted by aackthpt View Post

even better for scaring the heck out of relatives.

No joke... my two TH's can do 120dB with ease at listening position. That's 14 feet away

Had the SDX horn by itself pushing 124dB at one meter when I found out my highpass was set too low. Then again, I have mine corner loaded (eighth space) for the highest housewrecking potential.
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post #38 of 54
10/15/11 at 4:34am
I had to stop in and say, great job on the subs/room. Man, sittin' on wolfhorns..........
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post #39 of 54
10/15/11 at 5:07am
Love the install! How bout some listening impressions?
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post #40 of 54
10/15/11 at 6:54am
need...test...results...
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post #41 of 54
10/17/11 at 7:52am
Thread Starter 
Thanks everyone I really like the way the room turned out, that would have been wasted space.

Ok so listening impressions,
I am amazed at what these can do with only 200 watts per channel.
We watched How to train your dragon I sat in the back row and was very impressed.
I had the receiver set to 0db The amp was being driven to clipping (clip lights were barely flashing).
I played the big dragon crash a couple of times and could not hear any bad noises coming from the subs.


Quote:
Originally Posted by Oklahoma Wolf View Post

How to Train Your Dragon is the perfect movie to tell you whether you need a highpass or not. Let us know how it works out

We also watched Transformers Revenge of the fallen over the weekend, set the receiver at -15db and was very pleased with the results, you don't have to listen to a movie loud to get the tactile response that you should only expect to get when it is loud.
I think the subs are a little hot in the front row and will be a little low in the back row when I am done, That is OK with me as I built this more for me than my guests.
I have a smile on my face every time I listen to them.
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post #42 of 54
10/17/11 at 8:13am
Quote:
Originally Posted by FUN4ME View Post

I played the big dragon crash a couple of times and could not hear any bad noises coming from the subs.

You'll probably be fine then... if that movie couldn't do it, it's not too likely anything else will short of high volume sine waves.

Mine still put a smile on my face, too. There are times when I'll go a couple weeks without any bass heavy movies, and I forget what the subs can do. Then a five star bass movie comes along and whammo... I get up to see if I broke pieces off the room again.

Very glad to see them earning their keep at your place
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post #43 of 54
10/17/11 at 8:24am
Thread Starter 
Is the Behringer ECM800 mike a better choice for REW than this
http://www.radioshack.com/product/in...ductId=2103667
or would an spl meter be better?
Thanks
Erich
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post #44 of 54
10/17/11 at 9:11am
Quote:
Originally Posted by FUN4ME View Post

Is the Behringer ECM800 mike a better choice for REW than this
http://www.radioshack.com/product/in...ductId=2103667
or would an spl meter be better?
Thanks
Erich

Ya omnimic is good too...with the behringer I believe you need phantom power which is an additional piece you need to buy.
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post #45 of 54
1/14/13 at 5:47pm
Thanks for the thread. This is very similar to what I am currently designing. I am in talks with lilmike and DB and I think we've decided on 2 horns as risers. My theater room opens to the bar room at the back and the sound system doubles as a music system for the bar/entertaining area.

Can you tell me what effects mouth placements had ? As my riser will be like an island, I can have the mouths spaced apart, pointed sideways, 1 front 1 back, both forward facing etc. Even room response is more important than max spl to me, But it's tough to figure out which way the mouths should be set up without having them, which requires designing them first.

Floorplan:

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post #46 of 54
2/8/13 at 9:51pm
Thread Starter 
Quote:
Originally Posted by jonathanc View Post

Thanks for the thread.

But it's tough to figure out which way the mouths should be set up without having them, which requires designing them first.

Floorplan:


I built mine first and moved them around the room before I settled on a final resting place.
Corner loaded was good but you get A LOT of tactile response the way they are.
I will try to post up some graphs tomorrow.
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post #47 of 54
2/9/13 at 2:20pm
Quote:
Originally Posted by FUN4ME View Post

Corner loaded was good but you get A LOT of tactile response the way they are.

I'll bet, especially if they're unbraced like mine biggrin.gif
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post #48 of 54
2/9/13 at 2:43pm
Thread Starter 
I would recommend getting some way to measure before you do your final install.
Having said that I dont think that I would have changed the way I installed mine.

I think my room sucks, as you can see there is no room gain to be had down low.
Up the stairs is the game room that is bigger than the theater,
through the walkway is the kitchen and family room which are also bigger than the theater.

I know these dont look that good but they are just being EQ by Audyssey

Warning I have no idea how to use REW but here are my results

PC to amp no receiver in the chain


here is after Audyssey on my Onkyo 807 (I think that is the model any way)


I would build another set of these again, they fit my space requirements and with a little EQ the peaks could be dealt with. I have absolutely nothing bad to say about them.
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post #49 of 54
2/9/13 at 3:47pm
That null at 72hz or so is interesting. Normally with an increase in volume the curve should just shift upwards in the graph until you start hitting compression. However with this one, the green line the null area is gaining volume much more than the rest of the curve. Is that distortion ? Or perhaps something to do with dynamic EQ ?

I have an Amp with Audyssey XT32 and I'm curious how well it will do in EQ'ing the sub without a minidsp. I'm holding off on the dsp until I can take room measurements before and after Audyssey.

Edit: in order to post a graph within frequency limits you care about (say 2hz to 120hz in this case) use the limits button on the right side. Makes it easier to read.
Edited by jonathanc - 2/9/13 at 3:54pm
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post #50 of 54
2/9/13 at 4:46pm
I'd say it's probably got something to do with Audyssey, considering there is no such corresponding response dip in the first graph.

In fact, the steep slope of the first graph aside, the measurement looks a lot like my single SDX horn with respect to where the dips and peaks are located. If nothing else, it tells me he built his like I built mine.

The slope is a bit odd in the first graph though. A 30dB increase from 15-120 Hz you couldn't help but audibly notice as the measurement was being made. If you didn't hear it, something's off with regard to REW or the microphone doing the measuring. Maybe wrong cal file? Not sure.
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post #51 of 54
2/9/13 at 6:11pm
Any chance either of you could do a curve with just a single wolfhorn at the main listening position ? Dont need a loud one. 100db or so would do. I'm just curious what the response is like and how low a single digs down.
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post #52 of 54
2/9/13 at 6:25pm
Here you be:



That's with my old eBay special SPL meter. I don't have a lot of room gain myself... below 15Hz my response drops like a rock. This is also done without the B-2 in the chain... it went from the computer through my UCA222 right to the amp, a QSC RMX-1850HD.
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post #53 of 54
2/9/13 at 7:54pm
Quote:
Originally Posted by Oklahoma Wolf View Post

Here you be:



That's with my old eBay special SPL meter. I don't have a lot of room gain myself... below 15Hz my response drops like a rock. This is also done without the B-2 in the chain... it went from the computer through my UCA222 right to the amp, a QSC RMX-1850HD.

Thats a nice looking curve up to 75hz I wonder if running the receivers sub crossover down at 60hz would be beneficial in that situation. Above that the multiple tower speakers would take over and smooth out bass.
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post #54 of 54
2/9/13 at 8:23pm
That 78Hz dip doesn't bother me - it's a null. I've run louder sweeps, and that dip never changes. I've got my horns crossed at 80Hz. The null excepted, both horns together have me within about 3-4dB of being flat from 16-120 Hz. That's why I don't have a MiniDSP.
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