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Search: Posts Made By: mtg90
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-31-2015, 08:39 PM
Replies: 7
Views: 237
Posted By mtg90
The 8" woofers used in the other dual woofer...

The 8" woofers used in the other dual woofer models are designed to have higher sensitivity but the trade off is that in order to hit 80hz they need to be ported. The woofers used in this model are...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-30-2015, 04:29 PM
Replies: 18
Views: 546
Posted By mtg90
Holes drilled with template on drill press....

Holes drilled with template on drill press. Copper milled using a shapeoko 2 desktop cnc.

https://m.youtube.com/watch?v=0so6Kf6yIPc
Forum: DIY Speakers and Subs   05-29-2015, 06:51 PM
Replies: 1,148
Views: 836,094
Posted By mtg90
Excellent Job, what was the finishing process?

Excellent Job, what was the finishing process?
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-29-2015, 10:53 AM
Replies: 27
Views: 488
Posted By mtg90
Just use the thickest foam you can get away with...

Just use the thickest foam you can get away with without interference.

Crossover is fine on the outside of the box even up against insulation as the resistors should not get hot with normal...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-28-2015, 09:39 PM
Replies: 27
Views: 488
Posted By mtg90
Something like that could work. I would...

Something like that could work. I would recommend the foam (or fiberglass/cotton) on the inner bevels like is done on the triad speakers. If you use room correction in your AVR/processor that...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-28-2015, 09:32 PM
Replies: 9
Views: 200
Posted By mtg90
I don't know if any of the woofers in the Fusion...

I don't know if any of the woofers in the Fusion line of speaker hard bottom (besides the 4 and 6 which I believe can). I doubt you could really cause damage to your woofers with an AVR, they will...
Forum: DIY Speakers and Subs   05-27-2015, 10:41 PM
Replies: 17
Views: 191
Posted By mtg90
How are you mounting it, surface or flush? If...

How are you mounting it, surface or flush? If you flush mount it you want to go with the overall diameter since the whole driver needs to fit down into the recess (A). If surface mounting you only...
Forum: DIY Speakers and Subs   05-24-2015, 07:39 PM
Replies: 74
Views: 1,300
Posted By mtg90
Yes much better. Now under the graph...

Yes much better.

Now under the graph dropdown on the top toolbar you can apply smoothing to the response which will help cut down on the noise you are seeing. Try starting out at 1/12th octave...
Forum: DIY Speakers and Subs   05-24-2015, 09:46 AM
Replies: 74
Views: 1,300
Posted By mtg90
Top right, button called limits. You want to...

Top right, button called limits. You want to adjust the top/bottom so that you have 5dB per division. I usually go with 40-100dB or 50-110dB but it depends on your screen resolution and whether or...
Forum: DIY Speakers and Subs   05-23-2015, 07:17 PM
Replies: 497
Views: 18,090
Posted By mtg90
I always keep a PE catalog handy just for the...

I always keep a PE catalog handy just for the list of crossover part values they stock and their part #'s, much quicker then looking them up online.
Forum: DIY Speakers and Subs   05-22-2015, 10:05 PM
Replies: 497
Views: 18,090
Posted By mtg90
PE part 266-834 or 255-266 should work.

PE part 266-834 or 255-266 should work.
Forum: DIY Speakers and Subs   05-21-2015, 09:25 PM
Replies: 497
Views: 18,090
Posted By mtg90
Yes, the series RLC network is attenuating level...

Yes, the series RLC network is attenuating level by increasing impedance. It is more efficient then just a series resistor because the capacitor and inductor increase impedance without having to...
Forum: Speakers   05-21-2015, 07:27 PM
Replies: 29,593
Views: 1,278,835
Posted By mtg90
It should be just fine on its side. ...

It should be just fine on its side.


Edit: Jeff beat me to it.
Forum: DIY Speakers and Subs   05-21-2015, 07:20 PM
Replies: 497
Views: 18,090
Posted By mtg90
Here is one to try, pads midrange without having...

Here is one to try, pads midrange without having the resistors suck all the power from the lower frequencies. Note 4ohm/8ohm l-pad on HF is same on both.

...
Forum: DIY Speakers and Subs   05-21-2015, 11:33 AM
Replies: 497
Views: 18,090
Posted By mtg90
Not by much, I was modeling it the other day....

Not by much, I was modeling it the other day. Actually the hf driver is smoother with them after the network.
Forum: DIY Speakers and Subs   05-21-2015, 11:27 AM
Replies: 497
Views: 18,090
Posted By mtg90
I would put a separate set of resistors on each...

I would put a separate set of resistors on each driver to spread the load. You also want to place the resistors in after the cap/coil. Though you can try a single set out in front at first and...
Forum: DIY Speakers and Subs   05-20-2015, 09:25 AM
Replies: 1,342
Views: 90,946
Posted By mtg90
This looks like it might be another problem: ...

This looks like it might be another problem:
https://lh3.googleusercontent.com/-fVxNccp6m4A/VVyyRIXMbhI/AAAAAAAABsY/LIhCcMZHAac/w800-h450-no/0b856e07-76ba-497a-91ab-6377ff6aee46-ed.jpg

The wire...
Forum: DIY Speakers and Subs   05-19-2015, 06:30 PM
Replies: 1,342
Views: 90,946
Posted By mtg90
The crossover boards were revised on newer...

The crossover boards were revised on newer batches to include connection points for those components. It is hard to tell but I would guess cold/bad solder joints. Is there any sound coming through...
Forum: DIY Speakers and Subs   05-18-2015, 10:10 PM
Replies: 497
Views: 18,090
Posted By mtg90
You could try this: ...

You could try this:
https://lh3.googleusercontent.com/-GIcRCuiLY6k/VVrDrWVpZlI/AAAAAAAABqA/MlG5dkkhrjA/w683-h291-no/4594%2BPassive%2BCrossover%2Bfor%2BActive%2Bsystem%2B%252B%2BPad.png

Placing...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-17-2015, 09:53 PM
Replies: 18
Views: 546
Posted By mtg90
Thank you. It is just black colored hot...

Thank you.

It is just black colored hot glue. Many other adhesives can be used for attaching the parts to the board but hot glue is my adhesive of choice for being quick and odorless.
Forum: DIY Speakers and Subs   05-17-2015, 02:47 PM
Replies: 44
Views: 879
Posted By mtg90
Since it changed when lowering the mic I think...

Since it changed when lowering the mic I think that points to a reflection off the floor being one of the issues since moving the mic lower or higher would move around the floor bonce dip. Since the...
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-17-2015, 09:45 AM
Replies: 18
Views: 546
Posted By mtg90
reserved for future info

reserved for future info
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-17-2015, 09:44 AM
Replies: 18
Views: 546
Posted By mtg90
reserved

reserved
Forum: DIY Sound Group - Loudspeakers and Subwoofers   05-17-2015, 09:41 AM
Replies: 18
Views: 546
Posted By mtg90
Crossover Assembly Services & Custom Crossover Boards for DIYSG Kits

As many of you are likely aware I am sort of the unofficial crossover assembly guy for DIYSG kits, this includes most of the assembled crossovers ordered with kits. I believe now is the time to...
Forum: DIY Speakers and Subs   05-14-2015, 11:27 PM
Replies: 44
Views: 879
Posted By mtg90
Sorry I have been busy, did not get a chance to...

Sorry I have been busy, did not get a chance to reply.

When I took REW sweeps a few months back nothing seemed out of place, though I feel bad because I closed out of it without saving the...
Showing results 1 to 25 of 1080

 
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