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  Topic Review (Newest First)
05-30-15 10:54 AM
blitzer
Re: Christmas Build

Here is the final curve I eventually settled on. I am using "Dirac" inside my computer to adjust the music before it gets to the DAC.

Sounds fantastic. Fantastic clean non-boomy bass. Highly reccomend you build an IB sub.

I have another house curve I use when I want more base.

Blue is with no EQ.
04-05-14 09:41 AM
Champster
Re: Christmas Build

Wow this is quite a project. You have stones to remove part of the homes foundation to fit this!!!! But props to you. It looks like, with a little work on the response, you're going to have a great Sub!!!

What are you planning to do to tame the 30 hz peak?
02-07-14 03:35 PM
mojave
Re: Christmas Build

Quote:
blitzer wrote: View Post
Does this look like a typical nearfield sweep for a IB subwoofer?
- All processing turned off in the receiver. (pure direct mode)
- nothing in the path to the amp. Reciever---->EP4000
- Mic a few inches off the cone
That looks like a typical nearfield sweep for a high inductance driver like Fi makes and has nothing to do with it being an IB driver. You can see the basic response measurement of the Fi SSD 18" driver at data-bass.com and it looks almost identical.

Cutting the peak and boosting the low end will greatly help in evening out the frequency response.
02-07-14 01:33 PM
Wull Should be good once you add some EQ.
02-06-14 05:47 PM
blitzer
Re: Christmas Build

Black is nearfield and green is sitting position. Again - no filters applied.
02-06-14 05:39 PM
blitzer
Re: Christmas Build

Does this look like a typical nearfield sweep for a IB subwoofer?
- All processing turned off in the receiver. (pure direct mode)
- nothing in the path to the amp. Reciever---->EP4000
- Mic a few inches off the cone
01-19-14 11:11 AM
B- one Wow. Enough said.
01-19-14 09:58 AM
blitzer LOL. Thanks guys. It has been 13 years of swapping, trading up and hiding how much they cost from the wife somehow. I have gravitated completely away from boxes. If unfamiliar with these speakers(Legacy Whispers), they are mostly dipoles. The 15" cones each have another cone behind it, but they are open to the air in the back. I now go to high end audio shows and hear $30K speakers and just hate the boxy sound. I guess I am a dipole snob now.

I have now entered the crazy phase with my wife and friends. Most of them can't tell the difference between a clock radio and high end speakers and just think I am nuts. But they like the demo with the IB sub. But I assume you guys are all similarly nuts?
01-18-14 05:46 AM
Owen Bartley When I opened that picture, in my head, my eyes popped out like a cartoon and made that "baoo-ooga!" noise.
01-16-14 08:19 PM
Greenster
Re: Christmas Build

Wow. I don't know if I could concentrate on the movie if I had speakers like that in front of me. Those things are amazing.
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