Single Ultimax 15 or dual Infinity 12's? - AVS Forum
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Old 03-18-2013, 01:35 PM - Thread Starter
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Long time lurker with this forum, looking at my first DIY project. Here are some of my thoughts for the project:

-Sealed box for simplicity as this is my first build.
-Going to be using a plate amp instead of a pro-amp, again to keep things simple.

So, my question is which would provide a better listening experience? I do have a very open floor plan with large ceilings, however I am upgrading from an Onkyo HTIB 10 inch sub so I'm sure either way the difference will be substantial. I just can't seem to make my mind up about which solution will provide the best bang for the buck.

The 15 inch Ultimax is on sale right now ($169) paired with a 500 watt BASH plate amp ($230)=$399
2 12 inch Infinity 1260 or 1262 separate enclosures($110) 2 300 watt BASH amps ($300)=$410
2 12 inch Infinity 1260 or 1262 dual opposed($110) 1 500 watt BASH amp ($230)=$340
or
Order a Klipsch RW12D from the egg for $300 when on sale


I've been leaning towards the 15 so that I could add a second down the road possibly, but that would be in the distant future as my 2 kids seem to have first dibs on my paycheck. If I could get some recommendation also on which Infinity would present a 4 ohm load to the amp in each of the above scenarios, that would be great also. I'm still pretty new to wiring subwoofers, but any feedback is appreciated, thanks!
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Old 03-18-2013, 01:41 PM
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u need more then 500 watts also ep4000s sell for like $275 no reason to buy bash that is less then half the amp it is. and it would be able to power two 15' ultimax where is u would have to buy another bash which is underpowered for a 15''

so

buy a ultimax and a ep4000 for about same price then if u ever want to you can add another ultimax without needing new amps saving u money in long run.
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Old 03-18-2013, 01:47 PM
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what do you have for mains?

what do you want to accomplish? music, movies, very loud, very deep?

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Old 03-18-2013, 01:49 PM
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Two subs can smooth room modes, one cannot.

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The Laws of Physics aren't swayed by opinion.
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Old 03-18-2013, 01:57 PM - Thread Starter
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My mains are Polk Monitor 70's and a CS2 in the center. Primary use will be movies and video games with some music occasionally. I really don't need the bass to be extremely loud as my home theater is non-dedicated in my living room.

I have looked at some of the Behringer amps, but I would rather have a warranty on something new instead of spending the same amount on something used. Maybe I'm just being overly conservative, but also I'm not sure if it would introduce buzzing through the sub or if my Onkyo 609 could properly supply the correct output for the pro amp. Thanks for the responses!
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Old 03-18-2013, 02:55 PM
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the plate amp might not be as simple as you think. the bash 500 watt has an oddball eq and highpass factory setting. you have to solder in new components to change these properties.

doesn't sound like you are shooting for max performance or anything, so the idea of a lower cost commercial offering might work ok for you.

you might like a pair of these?

http://www.amazon.com/Polk-Audio-12-Inch-Powered-Subwoofer/dp/B000092TT0/ref=zg_bs_172568_2
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Old 03-19-2013, 07:19 AM
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There is no eq in the 500W BASH that I'm aware of, and the HPF was lowered to a reasonable level, below 20Hz. Has this changed recently?

To the op, do you realistically have the option of placing two subs in separate locations in your living room HT? I think your answer here is important, as it will completely eliminate one of your options, and the reasoning behind some of the suggestions above (like a stronger amp that will power two 15's in the future).

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Old 03-19-2013, 12:37 PM
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Quote:
Originally Posted by cookieattk View Post

u need more then 500 watts also ep4000s sell for like $275 no reason to buy bash that is less then half the amp it is. and it would be able to power two 15' ultimax where is u would have to buy another bash which is underpowered for a 15''

so

buy a ultimax and a ep4000 for about same price then if u ever want to you can add another ultimax without needing new amps saving u money in long run.

Where are you seeing ep4000 for 279? i only see them over 350 online.
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Old 03-19-2013, 12:43 PM
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Quote:
Originally Posted by wywern209 View Post

Where are you seeing ep4000 for 279? i only see them over 350 online.

Walmart and Amazon had them at $275 for awhile a few months ago. I jumped on it back then and am now glad I did. I even got use credit card reward points for a $50 gift card towards it.

It now powers two 18" subs with ease, for less money than those small, underpowered plate amps.
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Old 03-19-2013, 01:41 PM - Thread Starter
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I have the room for 2 subs, but it's just a question of getting the wife on board with that plan. That's why I was planning on 1 now and then another down the road. The more I look at the Klipsch though, the more I think it might fit my needs as I really don't have the needed dedicated area to really crank up the sound.
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Old 03-19-2013, 01:45 PM
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"There is no eq in the 500W BASH that I'm aware of, and the HPF was lowered to a reasonable level, below 20Hz. Has this changed recently?"

i was just reading from the manual.

http://www.parts-express.com/pdf/300-752.pdf

default values for r17 and r18 are specified to be 10k and 60k. that gives +2db in the upper 30's and then it drops 7db from 30hz to 20hz and is 12db/oct below that.

like i said, not so simple.

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Old 03-19-2013, 01:50 PM
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"It now powers two 18" subs with ease, for less money than those small, underpowered plate amps."

and a fan mod to make them silent is less than $10, though one would have to know how to work a screwdriver in order to made the mod.

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Old 03-28-2013, 10:47 PM
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What fan mod makes them silent??
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Old 03-28-2013, 11:50 PM
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http://www.hometheatershack.com/forums/subwoofer-amps-high-pass-filters/23528-behringer-ep4000-pics-fan-mod-etc.html

it is just replacing the stock fan, that's all. the stock fan is to help keep the amp cool under pro audio conditions, such as blasting full power out doors in the summertime heat, so it blasts a ton of air and that makes a ton of noise. a nearly silent unit costs under $10. there are a few listed in the thread.

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Old 03-29-2013, 08:17 AM
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I don't think anyone would say that you should go with the Infinity over the Dayton UM-15, that is, if you are just buying one. Two of the Infinitys might smooth out the responce, but if it were me and I had to pick from two Infinitys or one Dayton UM-15, I would go with the single Dayton, but others might disagree. Why don't you try and talk your wife into letting you build 2 enclosures and purchase 2 of the Dayton UM-15s. You can pick up a brand new Behringer EP4000 from Amazon or Walmart for under $300. I would not worry about buying used one bit, though. Those Behringer amps are built like tanks and even if it ended up having some problems, Behringer is good about helping out with repair work...at least that has been my experience.
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