Infinite baffle cost?

[Nathan P]

How much more would a simple 1 driver infinite baffle sub cost than a box sub with similar output? I have an easy to access attic and crawlspace, so doing something would be pretty easy. How hard is it to do infinite baffle? I just think it would be a cool conversation peice 8) . What are the advantages/disadvantages?

Thanks,
Nathan

[Hdale85]

Well i believe with an IB it has less output with a single driver then a sub in an enclosure, at least this is what i gather from what ive read. Thats why people use like 4+ drivers. But i could be wrong

[ThomasW]

An IB doesn't have less output, unlike a box sub it's output is limited by the mechanical limits of the suspension, not the thermal heating of the VC. Since there's not box to act like an acoustical filter, an IB will play very low. So it uses the excursion up rather quickly.

You'll find quite a bit of info HERE

[JoshK]

I am planning at some point after other projects get done, to use my 2 AV15's to do a "heater grate" IB install like the one on page 4 of the gallery. I showed my wife the picture and she was quite enthusiastic about the idea.

[dyazdani]

I showed my wife the picture and she was quite enthusiastic about the idea.

:T Buy it and built it quickly!

I'd like to do an IB in my house, but I don't really have an easy option...

[Hdale85]

My soon to be wife doesnt really care what kind of speakers i have in the house :B. Especially in the theater room we are going to build, Her grandma is going to sell us her house and we are going to convert the basement into a Theater. Im just not sure of the ceiling height its pretty low maybe 6 feet at the most. Anyone know if thats too low?

[cjd]

FWIW:

My room is ~1500 cubic feet. I use a pair of Dayton 15" IB subs and a 240W plate amp, manifold mounted. I picked up all three parts on special, so my investment is ~$300. It did not play as loud as the Tumult I built my dad (~2.5cu/ft sealed) before running out of excursion, but it was cleaner up to a point - I'm not sure a comparison to an XBL2 motor is entirely fair in this respect. Were I to do this again I would use better drivers, but... I could also just use MORE and still spend quite a bit less than I did for the Tumult.

C

[ThomasW]

Anyone know if thats too low?

Height doesn't have any effect on an IB, but I doubt that 6' meets any current building code.

[Exocer]

My basement is about 5'6" high and it was built about 2 years ago

[ThomasW]

I think that's called a crawlspace.....:wink:

[---k---]

5'6"??? 8O How tall are you?

[Dennis H]

The CABO code is one of the most lenient ones and here's how it reads. Local codes may be more strict.

This Code Guide establishes the minimum acceptable standards for changing a space to habitable space or for changes in the habitable use of a space. These standards only apply to existing elements in existing one and two family dwellings and does not apply to new construction (additions or new buildings).

CEILING HEIGHT

In habitable areas with flat ceilings, a minimum ceiling height of 6 feet 8 inches will be allowed provided that beams, heating ducts, pipes, etc may project as low as 6 feet from the finished floor. Such encroachments below 6 feet 8 inches and which are more than 2 feet from walls, shall not occupy more than 10 percent of the room area.

Where the ceiling is sloped, the height may be a minimum of 6 feet 8 inches over an area no smaller than 6 feet by 10 feet, provided that the ceiling height is at least 5 feet over an area no smaller than 10 feet by 10 feet.

In bathrooms with a sloped ceiling, the ceiling height over tubs/showers and in front of toilets and basins must be at least 6 feet 8 inches.

[Mazeroth]

My theater room is rather small at 1500 ft3. I built a line array IB with four Shiva 12s, which happen to be the ones Thomas sold me. I'm running them off the 240w PE sub amp and couldn't be happier. At my listening position, which is a little over 12 feet from the IB (it's in the front left corner, crossed at 60hz) I can reach over 110db at 10hz! I have the speakers and IB almost running flat, in-room, thanks to my Behringer DCX2496 and DEQ2496. I had purchased four Atlas 15s to use in the line array but thought, what the heck, I'll try the Shivas first. I'm glad I did, because they do the job easily. Now I can sell the Atlas 15s and keep some money in my wallet.

[Hdale85]

Well i this house is about 60-100 years old might be a little higher then 6'. When i go up again I'll have to measure and see cause im really not sure i just know its shorter then my apartment im in now.

[Nathan P]

So how big of an infinite baffle system would I need to beat a Dayton RS 12 inch sub and Dayton 240W plate amp?

[Brian Bunge]

I'd think a pair of the Dayton IB15's with the 240W amp would do quite nicely.