First HT DIY Subwoofer for a noob on a budget.. - Page 7 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #61 of 100 Old 09-01-13, 11:20 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

Nevermind MikeP, unless you see a problem with this design. Including the bracing spec'd already, and the driver, this is my final design.
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post #62 of 100 Old 09-01-13, 11:42 PM
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Re: First HT DIY Subwoofer for a noob on a budget..

Looks good!

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post #63 of 100 Old 09-05-13, 03:17 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

My laminate came in! Woohoo! Maybe I can grab a pic or two of it, and my exsisting tv stand that I'm trying to match with this sub build, and show it to yall fairly soon. Course that means I'm gonna get picked on for a multitude of home theater sins. Bright colored paint, white trim, speakers too close to the floor, cats, kids, etc...
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post #64 of 100 Old 09-05-13, 03:20 PM
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Re: First HT DIY Subwoofer for a noob on a budget..

You're gonna get picked on a lot more than that if you don't post pics of your build process.

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post #65 of 100 Old 09-05-13, 03:45 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

I know! And I will. When I'm finally done with the subs, I have another thing thats been eating at me like crazy. Wrinkles in my 120" motorized screen. Causes the ticker line on ESPN to make me seasick!!! ARGH!
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post #66 of 100 Old 09-05-13, 11:35 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

MikeP, we briefly touched on future-proofing and a replacement driver that would be a good affordable match if these old PG's gave up. I've been trolling around the net and came up with the Dayton Audio DVC385-88 15" DVC Series Subwoofer. Do you have a suggestion for me? This Dayton seems to be consistently getting modeled at 6ft^3 @ 20hz, but nobody is backing it up with a WinIsd graph like you do. If I stuck this in the box we have been planning (6ft^3 @ 20hz), and powered it with the Bash 300, what would I be looking at?
http://www.parts-express.com/pe/show...number=295-190

PRODUCT SPECIFICATIONS
Power Handling (RMS)
350 Watts
Power Handling (max)
700 Watts
Impedance
8+8 ohms
Frequency Response
20 to 450 Hz
Sensitivity
90 dB 1W/1m
Voice Coil Diameter
2"
Magnet Weight
112 oz.
THIELE-SMALL PARAMETERS
Resonant Frequency (Fs)
19 Hz
DC Resistance (Re)
2.8 ohms
Voice Coil Inductance (Le)
1.82 mH
Mechanical Q (Qms)
8.66
Electromagnetic Q (Qes)
0.38
Total Q (Qts)
0.36
Compliance Equivalent Volume (Vas)
8.20 ft.
Mechanical Compliance of Suspension (Cms)
0.24 mm/N
BL Product (BL)
16 Tm
Diaphragm Mass Inc. Airload (Mms)
297.1g
Maximum Linear Excursion (Xmax)
15.1 mm
Surface Area of Cone (Sd)
829.6 cm
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post #67 of 100 Old 09-05-13, 11:50 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

Lame, I know. But here is a little pic of a sub and the very heavy roll of laminate pieces.
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post #68 of 100 Old 09-06-13, 06:58 AM
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Re: First HT DIY Subwoofer for a noob on a budget..

Your port dimensions guarantee that the cabinet is future proof.

Yellow is the Phoenix Gold with a Bash 300.

Orange is the DVC385-88 with a Bash 300.

Green is a SI HT15 with a Dayton SA1000.

First HT DIY Subwoofer for a noob on a budget..-copm.jpg

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post #69 of 100 Old 09-06-13, 08:58 AM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

Wow, my PG's look a little limp!! I guess I'll call it "room for growth." Thank you, yet again, for your efforts. How many other guys are you working with, just like me?
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post #70 of 100 Old 09-06-13, 11:13 AM
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Re: First HT DIY Subwoofer for a noob on a budget..

I work with whoever comes along and needs help. My post count says it all!

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