Single SI HT 18 build - Page 7 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #61 of 73 Old 01-24-13, 12:10 PM
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Re: Single SI HT 18 build

So looks like you custom made your paint. Can you describe how you did that, specifically how you made it metallic. I wanted a metallic paint for a recent project but didn't like any of the premade colors. Would love to know how to make my own. I would have never thought to do that.
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post #62 of 73 Old 01-24-13, 06:44 PM
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Re: Single SI HT 18 build

Looking good! Rock-solid build.
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post #63 of 73 Old 01-24-13, 09:35 PM Thread Starter
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Re: Single SI HT 18 build

I also love brown, certain browns anyway. I wanted a neutral color that would allow the sub to hide behind my mains. As for the paint I used Golden fluid acrylics; raw umber and carbon black mixed with Modern Masters metallic paint, champagne color. Modern Masters makes a color called English Brown which is metallic and is very close to the color I mixed but my local art supply store didnt have it in stock and I didnt want to wait for shipping ordering online. I already had the acrylics so I just mixed my own. I usually mix a decent sized pool of it on my palette, use that then mix more as needed. I like the subtle variations you get doing it that way. Plus then I dont mix more than I need. If you want more consistent color you could mix up a bunch of it at once, you just then have to put in a jar or something to keep it from drying out. Practice a bit first on something to get the hang of the way it applies.

Got a bunch done today.

Binding posts. I used the kind that uses a 1/4" hole tap in then secure with nuts on the inside. I like the clean look, which I would show you if I had remembered to take a pic.

Single SI HT 18 build-dsc01071.jpg

Poly fill from walmart.

Single SI HT 18 build-dsc01072.jpg

I then used my hand truck to wheel it inside. It was much easier that I thought it would be. I then applied a speaker gasket to the cut out, wired it up and popped the driver in. After setting it upright again this is what it looks like.

Single SI HT 18 build-dsc01074.jpg
Single SI HT 18 build-dsc01075.jpg

This is shot of it in place, lurking ominously in the corner.

Single SI HT 18 build-dsc01081.jpg

This is a shot of my man cave. Im already deep in the planning of the new mains. They will be floorstanding so the stands will go. I also plan on replacing the cheap Polk center.
I fired it up for a brief test with U-571. Man, this thing is insane. Im using one channel of a Beringer EP 4000, and I will definitely have to to go around the house and fix all of the things that are rattling now. I cant imagine the output of 2 or even 4 of these things that some builders are using. I do think I am going to pick up a MiniDSP to get a highpass filter on it down low just in case. Right now I am just using the crossover output from my Yamaha RXV1065 receiver, crossed at 80hz. I will probably buy a mic at some point to run REW just to see what it looks like. For now though Im pretty happy with the way it came out.

Single SI HT 18 build-dsc01084.jpg

Last edited by Code Red; 01-24-13 at 09:42 PM.
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post #64 of 73 Old 01-24-13, 09:48 PM
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Re: Single SI HT 18 build

Glad you like the performance from it!

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post #65 of 73 Old 01-24-13, 10:08 PM
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Re: Single SI HT 18 build

Awesome looking sub! I can't believe I'm doing 8 of these.... it feels crazy but I know another guy that is doing 16!!
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post #66 of 73 Old 01-26-13, 06:41 AM
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Re: Single SI HT 18 build

Way too nice to stuff into a corner! But if that's the best spot, that's the best spot.
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post #67 of 73 Old 01-26-13, 06:50 AM
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Re: Single SI HT 18 build

I couldn't find which driver you got. Is it the dual 4 ohm or 2 ohm? I'm assuming dual 2 ohm. I think that would give you around 600 watts on one channel of that amp. You should be safe in that size enclosure.

Last edited by brian6751; 01-26-13 at 06:56 AM.
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post #68 of 73 Old 01-26-13, 08:50 AM
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Re: Single SI HT 18 build

What a finish! I think the US Geological Survey is picking you up as about a 3.0 earthquake.
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post #69 of 73 Old 01-26-13, 11:24 AM
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Re: Single SI HT 18 build

Quote:
Code Red wrote: View Post
I fired it up for a brief test with U-571. Man, this thing is insane. Im using one channel of a Beringer EP 4000, and I will definitely have to to go around the house and fix all of the things that are rattling now.
You might want to try a Gramma first. I had a bunch of things rattling from the low frequency too, and that cured just about all of them. Or, since you seem very good with your hands, perhaps you could build an equivalent for half the price.

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post #70 of 73 Old 01-26-13, 07:30 PM Thread Starter
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Re: Single SI HT 18 build

I got the dual 4 ohm version. I thought I would then have more flexibility that way. I can run it series for an 8 ohm load and 550 watts (the way I have it now), or in parallel for a 2 ohm load for 1250 watts. These are the RMS specs directly out the manual of the EP4000. The only thing I cant do is 4 ohm mode for 950w. Keep in mind Im really bad at math and have little to no real understanding of electrical stuff. My logic is also suspect at times.

I have to say that I didnt expect a woofer this size to be so musical. I mainly bought it for realistic LFE in movies. But I been running a big variety of music through it and am surprised how deep it is, yet tight and controlled.
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