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post #1 of 25 Old 01-14-2012, 12:50 PM - Thread Starter
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Friend from work looking for some input on a HT setup. The room size is about 18x12x10 and he said he likes to listen at a "loud" volume.

He said an IB was an option so I was hoping for some input. What would be the best option with the budget given? Seems the market for IB drivers is pretty thin. I can really only think of Fi and Dayton.

Appreciate any feedback.

Thanks
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post #2 of 25 Old 01-14-2012, 01:52 PM
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There's the Xmas18 (or whatever it's called). It's a mid excursion 18 by Mach5/IST they're selling for around $100/ea if you buy 4 or more. It'd work in an IB alignment.

Nevermind. I just noticed they're out of stock.
http://www.istonline.ca/xmass-18.html

YID DIY
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post #3 of 25 Old 01-14-2012, 04:21 PM
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$800 for drivers, amps, wood, everything? I know I say this often, but again I'd say two F20 horns or THTs. Loud is what he will get, but he will sacrifice extension. Even with $100 drivers, his budget is the limiting factor in an IB/sealed build....

JSS
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post #4 of 25 Old 01-14-2012, 04:51 PM
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the horn is a good suggestion for max spl.

another option might be 4x of these: http://www.parts-express.com/pe/show...number=295-455

with a behringer inuke 1000dsp.

that should give lots of spl all over the bass. friend just needs a large back room (60 cubic feet or so) to make it work.

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post #5 of 25 Old 01-14-2012, 05:04 PM - Thread Starter
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Thanks so much for the advice so far. About what kind of SPL could he expect with 4 of those Dayton IB drivers? This is what I was currently thinking about, that or would two 18" Fi drivers be better?

He told me he doesn't have the time/tools to build a box. I didn't want to push him into anything he doesn't really want so I hope to stick with either IB solutions or something like a bolt together kit like PE sells.

The $800 budget would be for everything.
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post #6 of 25 Old 01-14-2012, 05:11 PM
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>120db spl across the spectrum, 1w1m.

one needs 115db at the listening position for full reference. in most rooms, the 4x ib system will get there.

it is a little over budget though. once in place, an extra couple bucks won't matter.

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post #7 of 25 Old 01-14-2012, 05:14 PM - Thread Starter
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^Very nice. How low do you think it will go?

He will be getting a receiver with Audyssey XT so that should help with a bit of any room issues. However, I think he might need a HP filter so he doesn't blow them up with a 10HZ signal. does that Behringer unit have that capability? Didn't seem to, but thought I would ask. Can someone tell me the cheapest HP filter?
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post #8 of 25 Old 01-14-2012, 05:28 PM
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"^Very nice. How low do you think it will go?"

an infinite baffle is like a large sealed cab. in a medium sized room, it should do everything...all the way down...to your equipment limits. 10hz should be no problem...

mic2200 for $100 if you really think that you need it.

you can always play with the high pass and the eq and the shelf filters in the amp in order to mimic a lower than 20hz high pass.

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post #9 of 25 Old 01-17-2012, 06:52 PM - Thread Starter
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Quote:
Originally Posted by maxmercy View Post

$800 for drivers, amps, wood, everything? I know I say this often, but again I'd say two F20 horns or THTs. Loud is what he will get, but he will sacrifice extension. Even with $100 drivers, his budget is the limiting factor in an IB/sealed build....

JSS

After I explained the IB option a litle more to him it looks like this won't happen... He was worried about the back wave propagating throughout the house.

Looks like I will mention the F20 and THT option. Just a couple of questions. Is there a driver still available that will work in the F20 and if I can get him only one, which one would generally provide the best performance from 20-100Hz?

Thanks

EDIT: BTW, it looks like the budget is going to drop down to about $500 instead
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post #10 of 25 Old 01-17-2012, 08:53 PM
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Quote:
Originally Posted by NateTTU View Post


After I explained the IB option a litle more to him it looks like this won't happen... He was worried about the back wave propagating throughout the house.

Looks like I will mention the F20 and THT option. Just a couple of questions. Is there a driver still available that will work in the F20 and if I can get him only one, which one would generally provide the best performance from 20-100Hz?

Thanks

EDIT: BTW, it looks like the budget is going to drop down to about $500 instead

They are both good, form factor is the deciding factor here. The F20 also has less panels to cut, and plans are free.

They can both use the dayton dvc 15" or the rss hf 15".....

$500 should easily get one built w/amp and everything.

The F20 will reach a tad lower by 1-2hz, and the THT is a tad louder, a dB or two. Insignificant differences.

JSS
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post #11 of 25 Old 01-17-2012, 10:50 PM
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http://www.parts-express.com/pe/show...number=295-190

This driver will work in the F20 or THT. Or you could also use the dayton RSS390HF. With a $500 budget he can only build one, get a decent plate amp for $150-$200 and that'll leave a little more than $150 for wood, pl and finishing (probably rattle cans)

Dan

Oops, max beat me to it
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post #12 of 25 Old 01-17-2012, 11:05 PM
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Or, if he doesnt have to tools to build or want to build he could pick up 4 of Dayton's new offerings.

http://www.parts-express.com/pe/show...number=300-629

For $144 delivered to your door, you couldn't touch it with DIY. Try spreading $144 for amp, driver, wood, finish, all delivered. Anyway 4 placed around the room and would only be $576.

Dan
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post #13 of 25 Old 01-17-2012, 11:07 PM
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The BASH 300 is currently on sale for $114.

I just measured mine, if I recall, it is essentially flat to the high teens stock, the measurements are on my other laptop.

It is a very good fit in the F-20.
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post #14 of 25 Old 01-18-2012, 01:01 AM
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Quote:
Originally Posted by saabracer23 View Post

Or, if he doesnt have to tools to build or want to build he could pick up 4 of Dayton's new offerings.

http://www.parts-express.com/pe/show...number=300-629

For $144 delivered to your door, you couldn't touch it with DIY. Try spreading $144 for amp, driver, wood, finish, all delivered. Anyway 4 placed around the room and would only be $576.

Dan

Really bugs me that parts express sells a full decked out 12" subwoofer for CHEAPER than a 2cu ft vinyl wrapped box... How does that logic begin to work
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post #15 of 25 Old 01-18-2012, 07:24 AM - Thread Starter
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Great info everyone. Yea, with the lack of time we would probably have to find someone local to build either the F20 or THT cab so that alone might make this impossible if the price for this gets too high, but I will check around.

However, those premade subs are dirt cheap. I did consider the 12'' Reference Series sub before because I know those subs are overall good quality, but it would be just a single sealed 12'' so output would be less than stellar. At the low price of $130 I don't think I can complain, but just curious if these are even worth the money? I just can't see how anyone can make a sub that cheap and still make money.

EDIT: One thing I forgot to ask was I know the bandwidth of these horn subs is usually pretty limited. Would running them from 20-100Hz be a problem?
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post #16 of 25 Old 01-18-2012, 09:12 AM
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No personal experience, but from what I've read they are more than worth the money, fairly musical. There was a thread put up on them over at techtalk, I guess people were pleasantly suprised. I'm in the middle of building a sub with spare parts I have as a gift. Even though I have the driver and wood already I'm strongly considering this because it'll probably still be cheaper and less time consuming.

Dan
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post #17 of 25 Old 01-18-2012, 09:58 AM
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I know that IB has been taken off the table for this build, But I just wanted to point out the possibilities of an Infinite Baffle on a budget for future builders. I picked up 4 of the dayton IB's used off the Bay about a year ago for about $300 shipped, and an EP1500 for $150 or so. If you shop around a bit, you can do a decent low-end IB for under $500.

Not too shabby...

If I were buying new though, I would fork over the dough for a couple Fi18's. I understand the newer technology would make them quite a bit better than the Daytons
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post #18 of 25 Old 01-18-2012, 10:30 AM
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Quote:
Originally Posted by NateTTU View Post

Great info everyone. Yea, with the lack of time we would probably have to find someone local to build either the F20 or THT cab so that alone might make this impossible if the price for this gets too high, but I will check around.

However, those premade subs are dirt cheap. I did consider the 12'' Reference Series sub before because I know those subs are overall good quality, but it would be just a single sealed 12'' so output would be less than stellar. At the low price of $130 I don't think I can complain, but just curious if these are even worth the money? I just can't see how anyone can make a sub that cheap and still make money.

EDIT: One thing I forgot to ask was I know the bandwidth of these horn subs is usually pretty limited. Would running them from 20-100Hz be a problem?

For the F-20, I wouldn't want to run it much past 100 Hz. without EQ, but it will do 100 Hz. without a problem.



With a little EQ, 150 Hz. is possible with two cuts. To be honest, the room will probably mess things up more than the bumps in the response.
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post #19 of 25 Old 01-24-2012, 11:22 AM - Thread Starter
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Just thought I would update this real quick. Talked my friend into going with a LMS 5400 in a 20'' cube powered by an EP2500. He will add a second one later when funds become available.
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post #20 of 25 Old 01-24-2012, 12:11 PM
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Quote:
Originally Posted by NateTTU View Post

Just thought I would update this real quick. Talked my friend into going with a LMS 5400 in a 20'' cube powered by an EP2500. He will add a second one later when funds become available.

Blew that budget out of the water Id say

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post #21 of 25 Old 01-24-2012, 02:15 PM
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"Really bugs me that parts express sells a full decked out 12" subwoofer for CHEAPER than a 2cu ft vinyl wrapped box... How does that logic begin to work"

"I just can't see how anyone can make a sub that cheap and still make money."

it's the crack cocaine model. give them their first hit for "free", then make it up when they come back for more. in this case, all the people who will pay more based on the reviews of the guys who purchased at the low price.

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post #22 of 25 Old 01-24-2012, 02:22 PM
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"Just thought I would update this real quick. Talked my friend into going with a LMS 5400 in a 20'' cube powered by an EP2500."

that's great. he will probably need some sort of signal shaper/linkwitz transform/shelf filter to bring up the bottom end. in a small enclosure like that, natural f3 is around 40hz or so.

"He will add a second one later when funds become available."

and another amp. one lms 18 can take a full ep2500.

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post #23 of 25 Old 01-24-2012, 02:55 PM - Thread Starter
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Originally Posted by LTD02 View Post

that's great. he will probably need some sort of signal shaper/linkwitz transform/shelf filter to bring up the bottom end. in a small enclosure like that, natural f3 is around 40hz or so.

Between any possible room gain and Audyssey, do you think that would flatten it out enough or he would still need some sort of LT?
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post #24 of 25 Old 01-24-2012, 03:05 PM
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Quote:
Originally Posted by NateTTU View Post

Between any possible room gain and Audyssey, do you think that would flatten it out enough or he would still need some sort of LT?

He will still want it. room gain will only get you so far, assuming the room is like 90% of those out there.

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post #25 of 25 Old 01-24-2012, 07:05 PM
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"Audyssey" not sure. there doesn't seem to be much consensus on that tool.

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