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Forum: DIY Speakers and Subs   02-20-2017, 12:44 AM
Replies: 12
Views: 288
Posted By derrickdj1
I'm not the best person to fully explain this...

I'm not the best person to fully explain this but, I will give it a try. Our avr's will produce a maximum signal a 0 db. Any thing less for the digital signal is a -4 or -6 db for example. In...
Forum: DIY Speakers and Subs   02-19-2017, 11:44 PM
Replies: 58
Views: 1,781
Posted By derrickdj1
The weight certainly picks up with multiple...

The weight certainly picks up with multiple drivers all i one box. That may be your friends, the combined weight and construction may give you a very solid and rigid structure.
Forum: DIY Speakers and Subs   02-17-2017, 08:15 PM
Replies: 12
Views: 288
Posted By derrickdj1
Once you get beyond four subs around the room the...

Once you get beyond four subs around the room the FR will not change much, extension may get better. You do know anything over 115 plus redirected bass of 122-128 db., you will be clipping in the...
Forum: DIY Speakers and Subs   02-17-2017, 10:07 AM
Replies: 12
Views: 288
Posted By derrickdj1
From looking at the room 4 large subs in the...

From looking at the room 4 large subs in the corners. Two NF behind the second row. A couple under the riser if possible. I can't see a need for subs lining the side walls. More cost effective...
Forum: DIY Speakers and Subs   02-17-2017, 06:45 AM
Replies: 7
Views: 170
Posted By derrickdj1
The avr will not be powering the subs, the I Nuke...

The avr will not be powering the subs, the I Nuke will do that.
Forum: DIY Speakers and Subs   02-16-2017, 08:14 PM
Replies: 66
Views: 1,413
Posted By derrickdj1
Nothing like direct coupling to the seats. The...

Nothing like direct coupling to the seats. The way I think of NF subs and TT's are that they work together and both add something that the other one alone can't do.
Forum: DIY Speakers and Subs   02-14-2017, 09:53 AM
Replies: 13
Views: 390
Posted By derrickdj1
MDF will get on all the walls if working in the...

MDF will get on all the walls if working in the garage. Just be ready to wipe down things when done. You can get by with less bracing using MDF. I built some subs from wood like I did the ones ...
Forum: DIY Speakers and Subs   02-14-2017, 09:44 AM
Replies: 101
Views: 3,115
Posted By derrickdj1
Originally Posted by derrickdj1 View Post 4...

Originally Posted by derrickdj1 View Post

4 subs around the room for the best FR. Keep the small subs closer to the MLP and the other 2, nearfied. Sounds like a dynamite system.

unfortunately,...
Forum: DIY Speakers and Subs   02-13-2017, 07:50 PM
Replies: 101
Views: 3,115
Posted By derrickdj1
4 subs around the room for the best FR. Keep the...

4 subs around the room for the best FR. Keep the small subs closer to the MLP and the other 2, nearfied. Sounds like a dynamite system.
Forum: DIY Speakers and Subs   02-13-2017, 11:41 AM
Replies: 19
Views: 356
Posted By derrickdj1
People can do whatever they want. Why even...

People can do whatever they want. Why even bother to trying and get to 30 Hz if it can support reasonable listening levels. You want 35 Hz, there are plenty of small subs available. We are not...
Forum: DIY Speakers and Subs   02-13-2017, 09:01 AM
Replies: 19
Views: 356
Posted By derrickdj1
It is not wise to use a 6 1/2 in. driver trying...

It is not wise to use a 6 1/2 in. driver trying to get to the low 30 Hz area. It's not about just tuning, is this the right driver for the intended application. A 6 1/2 in. driver is not the way to...
Forum: DIY Speakers and Subs   02-12-2017, 06:44 PM
Replies: 19
Views: 356
Posted By derrickdj1
35 Hz hpf seems way low for a 6 1/2 driver.

35 Hz hpf seems way low for a 6 1/2 driver.
Forum: DIY Speakers and Subs   02-12-2017, 06:34 PM
Replies: 12
Views: 288
Posted By derrickdj1
Hard for people to tell you if it will work as...

Hard for people to tell you if it will work as planned. Put up some room pic's. This will be very helpful.
Forum: DIY Speakers and Subs   02-12-2017, 06:25 PM
Replies: 3,962
Views: 215,954
Posted By derrickdj1
Thoughtful man!.. We all do what we have to do.

Thoughtful man!.. We all do what we have to do.
Forum: Subwoofers, Bass, and Transducers   02-12-2017, 09:02 AM
Replies: 14
Views: 199
Posted By derrickdj1
You can try something like...

You can try something like this:http://www.parts-express.com/penn-elcom-9106-rubber-cabinet-foot-25-dia-x-1-h--260-772
Forum: Subwoofers, Bass, and Transducers   02-12-2017, 08:44 AM
Replies: 18
Views: 278
Posted By derrickdj1
If the ceiling is 35 ft, how large is the rest of...

If the ceiling is 35 ft, how large is the rest of the room? You need some big boy speakers and sub for fill the space. A fairly nearfield setup will work best. I would think the room acoustics...
Forum: DIY Speakers and Subs   02-12-2017, 08:31 AM
Replies: 3,962
Views: 215,954
Posted By derrickdj1
The padding is for breaking up some reflections. ...

The padding is for breaking up some reflections. You should be OK and
it should not make a big difference. If needed, pull the driver later and add some more if you don't want to buy additional...
Forum: DIY Speakers and Subs   02-12-2017, 08:25 AM
Replies: 76
Views: 1,056
Posted By derrickdj1
That looks fairly simple. Can't wait til you're...

That looks fairly simple. Can't wait til you're done.:)
Forum: DIY Speakers and Subs   02-10-2017, 07:24 PM
Replies: 14
Views: 372
Posted By derrickdj1
Impressive! Now that is one power nearfield...

Impressive! Now that is one power nearfield experience.:)
Forum: DIY Speakers and Subs   02-10-2017, 02:59 PM
Replies: 3,962
Views: 215,954
Posted By derrickdj1
What's in a...

What's in a name:https://www.youtube.com/watch?v=qoYsfbq3vMc
Forum: DIY Speakers and Subs   02-08-2017, 01:24 PM
Replies: 7
Views: 268
Posted By derrickdj1
You can try this: LS 12 at 40 Hz, Gain+6. This...

You can try this: LS 12 at 40 Hz, Gain+6. This should feed some decent output in the the 20 Hz range. I always caution people not to set the gain higher than +6 or move the LS 12 from 40 Hz. This...
Forum: DIY Speakers and Subs   02-08-2017, 10:28 AM
Replies: 29
Views: 543
Posted By derrickdj1
They do make sofa subs:...

They do make sofa subs: http://www.parts-express.com/dayton-audio-sub-1000l-10-100-watt-low-profile-powered-subwoofer--300-639?utm_source=google&utm_medium=cpc&utm_campaign=pla

If you could design...
Forum: Subwoofers, Bass, and Transducers   02-07-2017, 01:21 PM
Replies: 1,441
Views: 21,369
Posted By derrickdj1
I downloaded the files and first tried to play...

I downloaded the files and first tried to play them on the

laptop. That did not have sound so, I transferred the files to HTPC and played them on the TV. It's Ok, since I have most the movies...
Forum: DIY Speakers and Subs   02-07-2017, 01:06 PM
Replies: 29
Views: 543
Posted By derrickdj1
I hear ya. My wife can take it or leave it. The...

I hear ya. My wife can take it or leave it. The good part, she does not complain when I turn things up and the house is shaking, lol.
Forum: Subwoofers, Bass, and Transducers   02-07-2017, 09:16 AM
Replies: 1,441
Views: 21,369
Posted By derrickdj1
Michael, I was able to download the clips. The...

Michael, I was able to download the clips. The video is excellent but, no sound?
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