First HT DIY Subwoofer for a noob on a budget.. - Page 8 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #71 of 100 Old 09-15-13, 07:32 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

A little update. The $99 Bash 300 sale ended at parts express ended before I made a final amp decision. So I decided..and picked up a second NIB Bash 300 on ebay for $125. Price you pay for indecision. I find myself lusting after those Dayton DVC385-88s. While looking at your chart, MikeP, I'm thinking they appear to be a worthwhile upgrade for the dollar, but I don't know what performance at this level actually sounds and feels like. Would this upgrade be worth the $280 it would cost me for the two Dayton subs versus the two Phoenixs?
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post #72 of 100 Old 09-15-13, 07:39 PM
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Re: First HT DIY Subwoofer for a noob on a budget..

There would be a noticeable difference with the Daytons, however, try the Phoenix subs first. If they provide all you need then great, if not, then upgrade.

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post #73 of 100 Old 09-19-13, 10:25 AM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

The Dayton Audio DVC 385-88's are on sale. $119, down from $139. Must..control..self..must..control..self...
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post #74 of 100 Old 09-23-13, 10:09 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

Another lil update. The second Bash 300S came in from ebay, as did the terminals from partsexpress. I'm running out of excuses to get this started.....except football season. A little nervous, don't want to mess this up. First build jitters? Is that a legit condition?
Oh by the way, I know what chuffing sounds like now. That Polk Audio PSW10 chuffs like crazy during movies and the tv series "Once Upon a Time". Read a ton of reviews, pulled the grille and hardly any better. Gain only set to 60%. Can I use this sub as a mid-bass when the 15's are done? Say crossed over at like 60hz? See, I have this old, but never installed Kenwood KEC202 car crossover..... Seriously..MikeP, thoughts? With a 12v power supply, could this work?


Last edited by jeffrobinson; 09-24-13 at 01:01 AM. Reason: adding pic
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post #75 of 100 Old 09-24-13, 01:01 AM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

I bet I'm totally missing something, but it would seem that using the primary Yamaha receiver low pass 120hz output I could feed it to the crossover inputs with a y adapter. Send high pass side to the Polk, and low pass to the Bash driven 15's.
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post #76 of 100 Old 09-24-13, 07:57 AM
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Re: First HT DIY Subwoofer for a noob on a budget..

The LFE from the reciever should feed the Bash amps. Use a Y adaptor from the LFE to the KEC202 and Polk if you want more mid bass.

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post #77 of 100 Old 09-24-13, 12:00 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

Gotcha, thanks Coach Mike!
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post #78 of 100 Old 09-27-13, 10:57 PM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

Coach Mike, you suggest bypassing the KEC202 for the Bash driven 15s. That means using the Bash low pass crossover, and matching it to the high pass from the 202 crossover for the psw10. I'm cool with this, but wonder why. Is the 12db low pass in the Bash better than the 18db in the 202? My second question is regarding the signal from the Yamahas sub out. Does splitting twice it degrade the signal strength enough that the auto on/off in the amps will have trouble working? Does an active crossover boost that output current like a preamp?

Last edited by jeffrobinson; 10-05-13 at 01:32 AM. Reason: grammer
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post #79 of 100 Old 09-30-13, 12:45 AM Thread Starter
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Re: First HT DIY Subwoofer for a noob on a budget..

Coach MikeP, a couple more questions. As far as box dampening goes, it seemes most folks like an egg crate style lining in ported boxes, and stuffing in sealed. And nothing through the length of the port slot itself. Your experience says what? I see that egg crate stuff seems to be made of two different materials, one yellowish, and one black. Is one better than the other? And if it makes no difference, I'm almost sure I recently read you mention a really cheap walmart pillow to somebody. What is this pillow made of? Next topic...box feet and elevation from floor. I have wood laminate flooring over concrete slab. I already picked up a couple sets of those partsexpress solid rubber feet, but I like the idea of those little caster wheels, is there a problem with those? I really dont see many folks using them in their builds..
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post #80 of 100 Old 09-30-13, 11:31 PM
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Re: First HT DIY Subwoofer for a noob on a budget..

I used the polyfill pillows in my boxes. I think they were less than 3 bucks each.


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