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Search: Keyword(s): ; Posts Made By: mtg90
Forum: DIY Speakers and Subs   02-09-2016, 05:03 PM
Replies: 294
Views: 16,112
Posted By mtg90
Yep. You can even use a long screwdriver...

Yep.

You can even use a long screwdriver or something similarly long and narrow (preferably made of non magnetic material) to pop it back out from the inside with the CD removed from the back. ...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   02-08-2016, 11:21 PM
Replies: 119
Views: 6,283
Posted By mtg90
Sorry about that. The holes are all drilled...

Sorry about that. The holes are all drilled manually on my drill press using a template and occasionally I will miss a hole on a batch (usually 6 boards stacked at a time). I do a light check at...
Forum: DIY Speakers and Subs   01-30-2016, 10:48 PM
Replies: 16
Views: 276
Posted By mtg90
Just catching up threads now, does the speaker...

Just catching up threads now, does the speaker sound ok before the receiver shuts off?

Did you do any testing with the ohm meter? If not I wound first start with the checking the reading at each...
Forum: DIY Speakers and Subs   01-25-2016, 01:36 PM
Replies: 47
Views: 1,502
Posted By mtg90
I think that looks good.

I think that looks good.
Forum: DIY Sound Group - Loudspeakers and Subwoofers   01-23-2016, 07:05 PM
Replies: 115
Views: 5,565
Posted By mtg90
4" should be enough. You might experience some...

4" should be enough. You might experience some rolloff of the higher frequencies depending on how enclosed they end up.
Forum: DIY Speakers and Subs   01-23-2016, 06:25 PM
Replies: 11
Views: 461
Posted By mtg90
Orange Romex is 10awg.

Orange Romex is 10awg.
Forum: DIY Speakers and Subs   01-23-2016, 06:18 PM
Replies: 5
Views: 222
Posted By mtg90
I have never experimented with removing the...

I have never experimented with removing the screen from the DNA-150 so I can't say what changes you might see with it removed, but remember the crossover was designed with the drivers as is.

You...
Forum: DIY Speakers and Subs   01-14-2016, 07:43 PM
Replies: 98
Views: 2,978
Posted By mtg90
Sorry if there might have been some confusion,...

Sorry if there might have been some confusion, there is 2" behind the ports to the rear wall on the normal flex 12 design not 1". So you might have to cut the port tube down another 1/2 inch if you...
Forum: DIY Speakers and Subs   01-14-2016, 06:02 PM
Replies: 11
Views: 261
Posted By mtg90
You don't have to cut anything to use the 34hz...

You don't have to cut anything to use the 34hz tuning.

The precision ports have three sections, front flare, center tube and rear flare. For the 34hz tuning you just leave out the center tube...
Forum: DIY Speakers and Subs   01-07-2016, 10:18 AM
Replies: 60
Views: 1,341
Posted By mtg90
Those are 10 degree increments which is what I...

Those are 10 degree increments which is what I use on any of my off axis plots unless otherwise noted.
Forum: DIY Speakers and Subs   01-06-2016, 10:02 PM
Replies: 60
Views: 1,341
Posted By mtg90
I think it was some kind of reflection working...

I think it was some kind of reflection working its way in, anyway it goes away when gated:
http://www.avsforum.com/forum/attachment.php?attachmentid=1168402&d=1452142904
Forum: DIY Sound Group - Loudspeakers and Subwoofers   12-31-2015, 09:59 AM
Replies: 115
Views: 5,565
Posted By mtg90
How much deeper will your box be? The ports can...

How much deeper will your box be? The ports can be extended a little since they are cut down a bit for the Flex-12 design. But yes a shelf brace could be placed behind the ports and should function...
Forum: DIY Speakers and Subs   12-28-2015, 08:01 PM
Replies: 27
Views: 741
Posted By mtg90
If there are no extra costs or added materials...

If there are no extra costs or added materials making it larger I say go for it, though you would only be looking to gain a fraction of a dB this time going from 7.55 to 7.7 which will likely be...
Forum: DIY Speakers and Subs   12-27-2015, 10:56 PM
Replies: 27
Views: 741
Posted By mtg90
Your latest box looks good. You might be...

Your latest box looks good.

You might be able to do away with the port spacer panel as your enclosure volume is a bit larger then the original VBSS box which will cause the tuning to drop a good...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   12-26-2015, 10:33 PM
Replies: 115
Views: 5,565
Posted By mtg90
The 3000DSP has plenty of power to use them in...

The 3000DSP has plenty of power to use them in stereo, there should be no difference in output if you use it to power two off one channel (as I did at the GTG) or one off each channel in stereo...
Forum: DIY Speakers and Subs   12-20-2015, 12:53 PM
Replies: 1,353
Views: 96,545
Posted By mtg90
There is, but that bump is not a major issue in...

There is, but that bump is not a major issue in real world listening. An active solution could be made better but the passive crossover is simple and sounds good. I attached a screen shot of the...
Forum: DIY Speakers and Subs   12-18-2015, 11:08 PM
Replies: 1,353
Views: 96,545
Posted By mtg90
I don't have any figures for the design with...

I don't have any figures for the design with flanking 8" woofers. I had the 12" box from the flex-12 design that I was able to use to measure, design and test the crossover. It just so happened to...
Forum: DIY Speakers and Subs   12-18-2015, 10:57 PM
Replies: 97
Views: 5,343
Posted By mtg90
Lower moving mass on the woofers (2-3 times less...

Lower moving mass on the woofers (2-3 times less then the more common 18" sub drivers) means less energy gets transferred into the cabinet and therefore less rocking.

I should have grabbed some...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   12-10-2015, 09:49 PM
Replies: 115
Views: 5,565
Posted By mtg90
The Magnum-12 driver is 6.125" deep overall and...

The Magnum-12 driver is 6.125" deep overall and would be 5.375" deep if surface mounted. You should allow at least 3/8" behind the driver for the pole vent to breathe.
Forum: DIY Speakers and Subs   12-09-2015, 08:02 PM
Replies: 14
Views: 546
Posted By mtg90
How do you plan to crossover to the woofer? ...

How do you plan to crossover to the woofer? Active would be my first choice which would also allow you to dial in the midbass to the levels you desire. However both would require similar amounts of...
Forum: DIY Speakers and Subs   12-09-2015, 07:54 PM
Replies: 242
Views: 8,682
Posted By mtg90
Either way should work just fine, though I like...

Either way should work just fine, though I like option A as well.
Forum: DIY Speakers and Subs   12-08-2015, 02:22 PM
Replies: 7
Views: 135
Posted By mtg90
Maybe Zaph's? http://www.zaphaudio.com/blog.html

Maybe Zaph's?
http://www.zaphaudio.com/blog.html
Forum: DIY Speakers and Subs   12-06-2015, 02:28 PM
Replies: 97
Views: 5,343
Posted By mtg90
It was a bit harder to see the voice coil on the...

It was a bit harder to see the voice coil on the PA460 without any venting under the spider, though I found it is possible to look through the spider with a bright flashlight.

Looking at it more...
Forum: DIY Speakers and Subs   12-05-2015, 08:58 PM
Replies: 97
Views: 5,343
Posted By mtg90
I did not get a chance to test distortion when...

I did not get a chance to test distortion when the weather was good.



I was able to grab a few measurements for you.

Top plate is 0.3 inches or 7.62mm.

I also measured inward xmech...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   12-05-2015, 03:13 PM
Replies: 115
Views: 5,565
Posted By mtg90
Yes a 6000dsp should work with those settings,...

Yes a 6000dsp should work with those settings, though I am not entirely sure if the internal DSP level will be the same for the DEQ settings. Since the 6000DSP is essentially a pair of bridged inuke...
Showing results 1 to 25 of 998

 
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