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First DIY project for a guy looking to upgrade - multiple sealed 18s? - Page 24

post #691 of 994
12/26/12 at 5:41am
Damn man, nice. I can't imagine the output of 4 of them! Breaking in our 18 nicely and we've been loving it! I'm gonna try putting the sub behind us to experiment like you did. tongue.gif;)
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post #692 of 994
12/26/12 at 8:42am
Quote:
Originally Posted by Gorilla83 View Post

I'm thinking so too. Didn't get a whole lot of play time today but did get in a quick demo for my brother and dad. biggrin.gif
Typically I keep them about 5-6" from the wall but if I remember correctly the measurements weren't all that different with them up close in my room. The only way to know for sure what's best is to experiment in your room.

While I agree, that doesn't work so well. The reason I asked is the fact that based on where it's going the cab can only be designed a couple different ways. If I design a dual opposed and it doesn't fit, I'm going to have to scrap it and start over possibly.
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post #693 of 994
12/26/12 at 11:28am
Quote:
Originally Posted by Gorilla83 View Post

Guys - I have all 4 subs up and running now. The 3rd and 4th subs are behind the couch and acting as an end table. First and foremost the output and impact is absolutely ABSURD!! Completely blows away anything I've had in the room so far. I've spent only a few quick minutes listening so far since I don't have a lot of time left today before family activities kick off. Tomorrow I'm hoping to re-eq and take some onmnmic sweeps along the way. I've learned a few things from the 10 short minutes I've spent demo'ing them:
1) I don't know if I'll ever be able to need or tolerate much more output for more than a clip or two at a time. Upon first hooking them up I had to back the sub level down -4 or -5 DB in order to not overpower the mains. The impact with the sub behind the couch makes me giggle like a second grade schoolkid at recess. I'm confident I'm seeing 130+ DB at the listening position for most frequencies. I will know more when i measure shortly.
2) I feel sorry for my wife when I have friends over to demo while she is home. Truly.
3) I have a newfound respect for what this clone amp can really do now that it's wired in 4 ohm stereo. It's freaking awesome. Hopefully it stays working for a while. biggrin.gif I had it cranked near reference for a few clips and wasn't even close to finding the limits of this setup.
4) Some of you guys have got to get over here this week and have a listen. Seriously.
5) I'm really going to have to respect this setup or I will have some serious hearing damage. biggrin.gif
I'm going to toy with placement a bit next and finish up the grills. Once I've found the locations, I will wire them through the walls with outlet plates, etc and snap some pictures for you guys.
Merry Christmas Eve all!!!

It's a Christmas dream come true. Well done Gorilla, congrats.

Will you explain to us the thought process when listening to dual caps that causes you to think "man, I really need to upgrade the low end"? LOL, Glad to see the caps found a good home, I am pulling the trigger on the 2nd FV15HP so I'm pretty excited about that. Quad "silverbacks" they are not, Luv the name.
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post #694 of 994
12/26/12 at 4:21pm
Thread Starter 
Quote:
Originally Posted by JapanDave View Post

Great build!

Thanks Dave! You're setup is amazing, I can hardly fathom how it sounds/feels in person. I'm jealous you have the real McCoy LG amps. smile.gif

Update: I have everything wired properly through the walls now and the Clone is back in the amp closet and relay triggered so no more fan noise and no more manually turning on the amp. smile.gif Playing with Audyssey in EQ right after dinner. I took some Omnimic sweeps earlier and it's looking very nice.
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post #695 of 994
12/26/12 at 4:27pm
Thread Starter 
Quote:
Originally Posted by dstew100 View Post

It's a Christmas dream come true. Well done Gorilla, congrats.
Will you explain to us the thought process when listening to dual caps that causes you to think "man, I really need to upgrade the low end"? LOL, Glad to see the caps found a good home, I am pulling the trigger on the 2nd FV15HP so I'm pretty excited about that. Quad "silverbacks" they are not, Luv the name.

Thank you sir. I really have no explanation other than I wanted to start experimenting. biggrin.gif I'm a big fan of the name, I have BrolicBeast to thank. biggrin.gif You're going to love adding the 2nd sub - until you want to add a 3rd and 4th. biggrin.gifbiggrin.gif
Quote:
Originally Posted by Fade to Black View Post

Damn man, nice. I can't imagine the output of 4 of them! Breaking in our 18 nicely and we've been loving it! I'm gonna try putting the sub behind us to experiment like you did. tongue.gif;)

Definitely a worthwhile experiment. I tried with just front subs and just rear subs as well. While the rear subs provide the most impact by far, there was definitely something missing when only running the rears without the fronts. All 4 makes for a really well balanced sound and feel.
Quote:
Originally Posted by bass addict View Post

While I agree, that doesn't work so well. The reason I asked is the fact that based on where it's going the cab can only be designed a couple different ways. If I design a dual opposed and it doesn't fit, I'm going to have to scrap it and start over possibly.

I hear you bud. Do you have a smaller sub you could place right up against the wall and measure with REW? It's worth trying. smile.gif
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post #696 of 994
12/26/12 at 5:05pm
Gorilla. Would you mind explaining how you are triggering the power for the amps. I am wondering how I'm ging to do that
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post #697 of 994
12/26/12 at 5:20pm
Was going to get this

http://www.amazon.com/Furman-MP-20Q-Accessory-Electrical-Maintained/dp/B0002JSY34
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post #698 of 994
12/26/12 at 6:28pm
Thread Starter 
Quote:
Originally Posted by brian6751 View Post

Was going to get this
http://www.amazon.com/Furman-MP-20Q-Accessory-Electrical-Maintained/dp/B0002JSY34

That would work great. I use something similar. It's easy enough to make your own as well, just pick up a solid state 20+ amp rated relay, a box, an outlet, and some wire. In the end you could save 40-50 dollars per box. wink.gif
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post #699 of 994
12/26/12 at 6:47pm
Quote:
Originally Posted by Gorilla83 View Post

That would work great. I use something similar. It's easy enough to make your own as well, just pick up a solid state 20+ amp rated relay, a box, an outlet, and some wire. In the end you could save 40-50 dollars per box. wink.gif

Cool thanks. Not sure how to wire the ones I saw. They only have 4 connection points.

http://www.surplussales.com/Relays/RESSPlug-1.html
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post #700 of 994
12/26/12 at 7:51pm
Quote:
Originally Posted by Gorilla83 View Post


I hear you bud. Do you have a smaller sub you could place right up against the wall and measure with REW? It's worth trying. smile.gif

I wish. I just loaded up my PB12/2 Ultra that my friend bought, and there is no way in hell I'm hauling that back down to the basement. biggrin.gif
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post #701 of 994
12/26/12 at 9:30pm
Just read all 24 pages. I need more bass!
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post #702 of 994
12/27/12 at 6:49am
Thread Starter 
Quote:
Originally Posted by bass addict View Post

I wish. I just loaded up my PB12/2 Ultra that my friend bought, and there is no way in hell I'm hauling that back down to the basement. biggrin.gif

Break out the handtruck! biggrin.gif That or borrow something like an Energy 10.3 from someone, heh.
Quote:
Originally Posted by SeaNile View Post

Just read all 24 pages. I need more bass!

YES you do. Definitely stop over Friday if you can. biggrin.gif


Update - I reran Audyssey using both sub channels. Fronts on channel 1 and rears on channel 2. EQ with this method was a bit trickier. It was certainly easier using just one sub channel and I may go back to that. Weird thing though - even when I set my speaker config to 1 subwoofer, when I run Audyssey it is still looking for both subs and errors out, WTF. I suppose I will figure it out eventually.

Anyway, when I started out I had a huge hump in the midrange, totally unlike what I saw when only running 1 sub channel. After some (ok a few HOURS, ugh) tinkering, I noticed that Audyssey had both some channel levels fully maxed out at -12 even with my amp gain at 50%, haha. I normally wait until after EQ to level match but in this case doing it beforehand took care of my issue. Once both subs channels were set to the same level at the LP, I was back to what I was used to seeing. Here is what we're looking at - smoothing or no smoothing pretty much looks the same. biggrin.gif

Such a smooth sound overall, although I still run music about 8DB hot. I've noticed the mains can't hang without distorting once I get to +5 on the dial. biggrin.gif Yes, this is an obscene level but that's what this hobby is all about. I'm going to try powering them with my EP4000 to see if that helps to keep them from distorting at that level. I'll be going from ~120 watts to ~450 to each speaker.

The cool part is smoothing or no smoothing pretty much looks the same except it extends about 0.5db lower with smoothing on.

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post #703 of 994
12/27/12 at 7:01am
Man, is that the response you were able to get with just Audyssey?
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post #704 of 994
12/27/12 at 7:08am
Thread Starter 
Quote:
Originally Posted by gpmbc View Post

Man, is that the response you were able to get with just Audyssey?

I used my minidsp to make 3 cuts from 2-3.5 db in the midrange. No boost was added anywhere. Funny enough Audyssey didn't do jack except for lower the entire curve like 6DB, haha. I do like it does for the mains though, they sound awesome.
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post #705 of 994
12/27/12 at 7:11am
First DIY project: Great success!
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post #706 of 994
12/27/12 at 7:20am
Quote:
Originally Posted by Gorilla83 View Post

I used my minidsp to make 3 cuts from 2-3.5 db in the midrange. No boost was added anywhere. Funny enough Audyssey didn't do jack except for lower the entire curve like 6DB, haha. I do like it does for the mains though, they sound awesome.
Your room is very sub friendly. Did you make the cuts after running Audyssey?
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post #707 of 994
12/27/12 at 7:23am
Quote:
Originally Posted by Gorilla83 View Post

Break out the handtruck! biggrin.gif That or borrow something like an Energy 10.3 from someone, heh.
YES you do. Definitely stop over Friday if you can. biggrin.gif
Update - I reran Audyssey using both sub channels. Fronts on channel 1 and rears on channel 2. EQ with this method was a bit trickier. It was certainly easier using just one sub channel and I may go back to that. Weird thing though - even when I set my speaker config to 1 subwoofer, when I run Audyssey it is still looking for both subs and errors out, WTF. I suppose I will figure it out eventually.
Anyway, when I started out I had a huge hump in the midrange, totally unlike what I saw when only running 1 sub channel. After some (ok a few HOURS, ugh) tinkering, I noticed that Audyssey had both some channel levels fully maxed out at -12 even with my amp gain at 50%, haha. I normally wait until after EQ to level match but in this case doing it beforehand took care of my issue. Once both subs channels were set to the same level at the LP, I was back to what I was used to seeing. Here is what we're looking at - smoothing or no smoothing pretty much looks the same. biggrin.gif
Such a smooth sound overall, although I still run music about 8DB hot. I've noticed the mains can't hang without distorting once I get to +5 on the dial. biggrin.gif Yes, this is an obscene level but that's what this hobby is all about. I'm going to try powering them with my EP4000 to see if that helps to keep them from distorting at that level. I'll be going from ~120 watts to ~450 to each speaker.
The cool part is smoothing or no smoothing pretty much looks the same except it extends about 0.5db lower with smoothing on.

Awesome! Congrats and welcome to the club.
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post #708 of 994
12/27/12 at 8:15am
Quote:
Originally Posted by MKtheater View Post

Awesome! Congrats and welcome to the club.

frown.gif

My subs aren't tall enough to ride the ride.
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post #709 of 994
12/27/12 at 8:35am
Wow. That is a freaking nice looking curve for minimum cuts.

Have you ever played with a house curve at all? I favor that when watching movies much more than a flat one. For music the flat works great.
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post #710 of 994
12/27/12 at 2:18pm
Thread Starter 
Quote:
Originally Posted by bass addict View Post

Wow. That is a freaking nice looking curve for minimum cuts.
Have you ever played with a house curve at all? I favor that when watching movies much more than a flat one. For music the flat works great.

Thank you. I haven't messed much with a house curve setup yet but I do run them a bit hot. Moviesninfind are generally recorded much hotter so not much of an issue. biggrin.gif
Quote:
Originally Posted by leninGHOLA View Post

First DIY project: Great success!

Thanks!
Quote:
Originally Posted by gpmbc View Post

Your room is very sub friendly. Did you make the cuts after running Audyssey?

Yes. It actually didn't really need as much cutting as before audyssey, heh. So much for that sub eq. smile.gif funny enough my room measures great, but it sucks up a LOT of output. Anyone that has been here can attest. tongue.gif
Quote:
Originally Posted by MKtheater View Post

Awesome! Congrats and welcome to the club.

Thanks MK. It's nice to at least be in this league even if it isn't all out like many of the setups on here.
Quote:
Originally Posted by dbldare View Post

frown.gif
My subs aren't tall enough to ride the ride.
There is always room to grow. biggrin.gif
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post #711 of 994
12/27/12 at 8:33pm
Thread Starter 
Cranked up WOTW scene tonight and it wrecked my projectors lens shift alignment, haha. Worst I have seen yet:

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post #712 of 994
12/27/12 at 9:08pm
You aren't doing it right if you haven't broken something. tongue.gif
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post #713 of 994
12/27/12 at 10:18pm
Quote:
Originally Posted by Scott Simonian View Post

You aren't doing it right if you haven't broken something. tongue.gif

I must be a freaking expert by now then. biggrin.gif

Rilla, I think you've clearly crossed the threshold from normalcy to insane. smile.gif
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post #714 of 994
12/27/12 at 11:03pm
Madness sir. I must say I thought of you when, at the end of the night, carp and I fired up both his SubMs along with the DoD (the name I'm calling my dual opposed Dayton, which I just started right now) and watched the elevator falling clip from Underworld: Awakening. The uzzi fire was just absurd and ridiculous, both of us were falling out of our seating laughing.
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post #715 of 994
12/28/12 at 8:25am
Wow, gorilla your build turned out great, I'm interested in trying a similar build myself but would likely just start with 1 dual opposed box. I don't have much experience building stuff, however, and would likely need to pick up some power tools.

Any chance you could give us a brief step by step guide to your build and list any tips or tricks you learned along the way?

Thanks and Happy Holidays!
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post #716 of 994
12/28/12 at 8:33am
Thread Starter 
Quote:
Originally Posted by bass addict View Post

I must be a freaking expert by now then. biggrin.gif
Rilla, I think you've clearly crossed the threshold from normalcy to insane. smile.gif

Yeah you're probably right. My friends and family seem to think so. tongue.gif

Quote:
Originally Posted by Scott Simonian View Post

You aren't doing it right if you haven't broken something. tongue.gif

I obviously agree. An expensive mentality for sure though, haha. eek.gif
Quote:
Originally Posted by dgg04 View Post

Wow, gorilla your build turned out great, I'm interested in trying a similar build myself but would likely just start with 1 dual opposed box. I don't have much experience building stuff, however, and would likely need to pick up some power tools.
Any chance you could give us a brief step by step guide to your build and list any tips or tricks you learned along the way?
Thanks and Happy Holidays!

Check out the DIY FAQ in my signature. Pretty much outlines everything you need. My build is pretty much documented step by step in this thread as well.
Quote:
Originally Posted by MrSmithers View Post

Madness sir. I must say I thought of you when, at the end of the night, carp and I fired up both his SubMs along with the DoD (the name I'm calling my dual opposed Dayton, which I just started right now) and watched the elevator falling clip from Underworld: Awakening. The uzzi fire was just absurd and ridiculous, both of us were falling out of our seating laughing.

Sounds like you guys had a good time. biggrin.gif Looking forward to your thoughts on Saturday's event. Should be a blast, wish I could be there for that.
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post #717 of 994
12/28/12 at 9:51am
Quote:
Originally Posted by Gorilla83 View Post

Cranked up WOTW scene tonight and it wrecked my projectors lens shift alignment, haha. Worst I have seen yet:

At the GTG we measured sub output via the standard Gorilla measurement test. AKA number of inches the subs knock the projector out of alignment. He has now changed the standard measurement unit to feet. Bwahahahaha
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post #718 of 994
12/28/12 at 7:30pm
Had a chance to stop by and check out Andrew's system today. It's by far the most impressive thing I have heard short of a professional rock concert. Everything sounds so smooth and integrated very well. The subs are not pushed at all the the output is insane. So insane that I put my Caps up for sale on the way home. My decision now is 2 or 4 of the CHT 18.2 subs. I am so tempted to go with 4 but for the first time in my life I think it might be overkill if it's anything like Andrew's. If my ears weren't still ringing I'd be getting 4....
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post #719 of 994
12/28/12 at 10:10pm
I keep wanting to tell you that you are crazy for selling your Caps for CHT but I keep forgetting those are the older Caps. I wonder what kind of output they have compared to the newer versions?
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post #720 of 994
12/29/12 at 4:17am
So how did the CHT-18.2's sound compared to the Dayton HO18's? Is the gtg over yet? What were everyone's impressions?
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