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Forum: DIY Speakers and Subs   10-21-2014, 08:57 PM
Replies: 34
Views: 1,031
Posted By BrickTop
The shipping address is from NC.

The shipping address is from NC.
Forum: DIY Speakers and Subs   10-21-2014, 07:46 AM
Replies: 8
Views: 310
Posted By BrickTop
The front is a 3' x 11' x7' area behind an AT...

The front is a 3' x 11' x7' area behind an AT screen. My one big hurdle is that my electrical main comes in on the right hand side and I cannot build in front of it. So an area about 30" down and 20"...
Forum: DIY Speakers and Subs   10-20-2014, 11:22 PM
Replies: 8
Views: 310
Posted By BrickTop
I have 4 of the FTWs Using winisd I get almost...

I have 4 of the FTWs Using winisd I get almost 136db from the four FTWs @ 20 Hz when ported and tuned to 15 hz. When sealed, I am limited to 127db. At 15 hz I get over a 10 db boost ported, just not...
Forum: DIY Speakers and Subs   10-20-2014, 01:38 PM
Replies: 8
Views: 310
Posted By BrickTop
I'm running into trouble finding places to put...

I'm running into trouble finding places to put ported boxes in my theater...just too big for the FTW. I did some modelling of putting all the FTW in sealed, dual opposed boxes and adding 4 SI HTD4s...
Forum: DIY Speakers and Subs   10-16-2014, 06:02 PM
Replies: 8
Views: 310
Posted By BrickTop
I have 4 FTW 21. I have been trying to figure out...

I have 4 FTW 21. I have been trying to figure out where to put 4 30+ cubic foot boxes around my theater. I have room for two behind my screen, I may have to get tricky with two more. I want to tune...
Forum: DIY Speakers and Subs   10-15-2014, 12:10 PM
Replies: 8
Views: 310
Posted By BrickTop
Question Add a sub for LCR

I have a fairly capable sub system currently able to hit reference at the LP from 20 Hz up. I am only just barely able to do this as I'm using an IB. I want to be sure I am capable of the extra db...
Forum: DIY Speakers and Subs   10-10-2014, 07:55 PM
Replies: 36
Views: 1,159
Posted By BrickTop
I want some of his Kool-aid.

I want some of his Kool-aid.
Forum: DIY Speakers and Subs   10-10-2014, 06:32 PM
Replies: 79
Views: 1,546
Posted By BrickTop
I highly second my Bostitch. Been through hell...

I highly second my Bostitch. Been through hell and back and never fails (watch, it will die on me now)
Forum: DIY Speakers and Subs   10-09-2014, 07:35 PM
Replies: 3
Views: 144
Posted By BrickTop
I will post some graphs when I can get at my...

I will post some graphs when I can get at my tablet. I got stuck at work today late and didn't get around to transferring any data. I'll likely have the inukes in this weekend as well.
Forum: DIY Speakers and Subs   10-09-2014, 07:18 PM
Replies: 3
Views: 144
Posted By BrickTop
question about FR room smoothing

I have an IB manifold essentially where I had my old dual horn setup. The horns were corner loaded behind my screen...so one in each corner. My IB manifold is a line array "outie" which almost spans...
Forum: DIY Speakers and Subs   10-09-2014, 04:34 PM
Replies: 29
Views: 950
Posted By BrickTop
wrong thread

wrong thread
Forum: DIY Speakers and Subs   10-04-2014, 10:32 AM
Replies: 36
Views: 1,159
Posted By BrickTop
Your making assumptions. I never said there...

Your making assumptions. I never said there wasn't a difference. OP is talking about an HT sub, which to most people includes info below 25hz, which had been made clear in many of your posts is not...
Forum: DIY Speakers and Subs   10-03-2014, 08:07 PM
Replies: 36
Views: 1,159
Posted By BrickTop
Most of us cross our subs below 80 hz with a 24db...

Most of us cross our subs below 80 hz with a 24db LR crossover. Inductance humps on these subs would not seem to be an issue. If you love low Le subs so much just stick with pro woofers and play them...
Forum: DIY Speakers and Subs   10-03-2014, 07:05 PM
Replies: 36
Views: 1,159
Posted By BrickTop
Hardly. PB12-NSD is $770. The driver has a measly...

Hardly. PB12-NSD is $770. The driver has a measly 12.5 mm of excursion. For just under $200 shipped he could get a SI HS18 with 22mm of excursion and over four times the displacement. Add an iNuke...
Forum: DIY Speakers and Subs   10-03-2014, 06:52 PM
Replies: 770
Views: 26,204
Posted By BrickTop
We need not lump Canada together, wasn't the last...

We need not lump Canada together, wasn't the last big GTG in Canada...there was some serious overkill in there. IST is also in Canada, home of the FTW-21...now I'm not saying 4 is overkill, but...
Forum: DIY Speakers and Subs   09-30-2014, 12:36 PM
Replies: 72
Views: 2,609
Posted By BrickTop
Per dollar the 6000 is a better deal. $400 for...

Per dollar the 6000 is a better deal. $400 for 1.8kwatts per channel at 4 Ohms + a dsp...it is a steal. A 3000 with DSP is $279 for half the power. Even the EP4000 is now no less than $329 and it...
Forum: DIY Speakers and Subs   09-30-2014, 12:19 PM
Replies: 45
Views: 745
Posted By BrickTop
Yes, for impedance only. It gives more...

Yes, for impedance only. It gives more flexibility when wiring to an amp, especially when used in multiples. You should not run separate signals to the voice coils, such as two amps...one to each...
Forum: DIY Speakers and Subs   09-30-2014, 11:56 AM
Replies: 45
Views: 745
Posted By BrickTop
4 Ohm if wired in series or 1 Ohm if wired in...

4 Ohm if wired in series or 1 Ohm if wired in parallel.
Forum: DIY Speakers and Subs   09-30-2014, 11:49 AM
Replies: 110
Views: 2,129
Posted By BrickTop
Having had both capable mains and horn subs, I...

Having had both capable mains and horn subs, I would choose the subs to reproduce the highest frequency bass without room issues. There is simply nothing as tactile and chest slamming as a good horn...
Forum: DIY Speakers and Subs   09-30-2014, 11:31 AM
Replies: 110
Views: 2,129
Posted By BrickTop
I think at this point it can easily be debated....

I think at this point it can easily be debated. THX has relaxed its stance so much that the meaning if the brand is not very impressive, but the specs once used for THX screen periphery and volume of...
Forum: DIY Speakers and Subs   09-30-2014, 10:50 AM
Replies: 110
Views: 2,129
Posted By BrickTop
Without modelling the driver, I'm not sure if you...

Without modelling the driver, I'm not sure if you can get the TD15M to have a traditional THX spec roll-off of 12 db/oct with a -3db at 80 hz. So a box QTS of .707 or close to and a box Fs of 80,...
Forum: DIY Speakers and Subs   09-25-2014, 03:09 PM
Replies: 293
Views: 17,473
Posted By BrickTop
There was a long thread here many years ago that...

There was a long thread here many years ago that outlined the optimal orientation of side surrounds when using traditional Dolby and DTS. The determination from the group involved was that multiple...
Forum: DIY Speakers and Subs   09-24-2014, 11:27 AM
Replies: 293
Views: 17,473
Posted By BrickTop
For my theater, since I have drop ceilings, I...

For my theater, since I have drop ceilings, I would replace the tile where I want the speaker with an MDF baffle and paint it the same color as the tiles. As for wall mounting in drywall, I think you...
Forum: DIY Speakers and Subs   09-19-2014, 02:53 PM
Replies: 104
Views: 7,408
Posted By BrickTop
There's the MiniDSP which has filter capability...

There's the MiniDSP which has filter capability to 10 Hz. To me it seems that to add another box with the ability to be over-driven or not drive pro amps enough is not worth the hassle. Then again, I...
Forum: DIY Speakers and Subs   09-19-2014, 10:55 AM
Replies: 104
Views: 7,408
Posted By BrickTop
It appears one can apply a full 48db slope high...

It appears one can apply a full 48db slope high pass, though it uses 4 filters to reduce the frequency to the desired value. If the filter graphs in the Behringer SW are correct, one would have to...
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