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Forum: DIY Speakers and Subs   09-21-2013, 10:56 PM
Replies: 67
Views: 7,666
Posted By LINEARX
Give your drivers a couple weeks to break-in. No...

Give your drivers a couple weeks to break-in. No hurry.
Your cabinet work, by the way, is EXCELLENT!
Your pix are very useful too.
Forum: DIY Speakers and Subs   04-23-2013, 12:27 AM
Replies: 119
Views: 7,368
Posted By LINEARX
Love that milk carton stand for the center...

Love that milk carton stand for the center channel speaker.
Forum: DIY Speakers and Subs   04-23-2013, 12:26 AM
Replies: 119
Views: 7,368
Posted By LINEARX
What kind of video camera is that? That's the...

What kind of video camera is that? That's the best audio I've heard so far of an LMS at speed from a hand held camera.
It even picked up the 10Hz.
Forum: Community News & Polls   04-22-2013, 03:33 PM
Replies: 33
Views: 8,290
Posted By LINEARX
Excellent write up, excellent pix! That GTG...

Excellent write up, excellent pix!
That GTG was special. Very well organized, very well instrumented and managed, and best of all, look at the varied speakers.
GTGs, it's an American pass time.
Forum: DIY Speakers and Subs   04-10-2013, 11:40 PM
Replies: 46
Views: 2,353
Posted By LINEARX
By using a "generic" cross-over design on the...

By using a "generic" cross-over design on the Tang band tweeter, what failures are likely to happen?
The Tang Band factory suggested a cross-over no lower than 1800Hz.
What am I getting myself...
Forum: DIY Speakers and Subs   04-10-2013, 03:12 PM
Replies: 46
Views: 2,353
Posted By LINEARX
In researching the change in cross-over for the...

In researching the change in cross-over for the Tang Band tweeter to a lower Hz, I notice that my intended cross-over @1500Hz moves the tweeter impedance onto the instep of the impedance spike.
The...
Forum: DIY Speakers and Subs   04-09-2013, 09:50 PM
Replies: 46
Views: 2,353
Posted By LINEARX
Quote:Originally Posted by...

Quote:Originally Posted by cogeng182 http://www.avsforum.com/img/forum/go_quote.gif...
Forum: DIY Speakers and Subs   04-09-2013, 04:27 PM
Replies: 46
Views: 2,353
Posted By LINEARX
`Thanks Coctostan. I noted there were...

`Thanks Coctostan. I noted there were compromises that had to be made especially in the shaping of the waveguides.
I also noted that you were an active participant in the wave guide formula...
Forum: DIY Speakers and Subs   04-09-2013, 12:49 PM
Replies: 46
Views: 2,353
Posted By LINEARX
That doesn't seem too difficult, replace the...

That doesn't seem too difficult, replace the dome tweeter with a CD (compression driver) and a waveguide, modify the crossover, and wahlah I've got the ultimate.
In reading all the latest SEOS...
Forum: DIY Speakers and Subs   04-04-2013, 11:41 AM
Replies: 46
Views: 2,353
Posted By LINEARX
Quote:Originally Posted by...

Quote:Originally Posted by coctostan http://www.avsforum.com/img/forum/go_quote.gif...
Forum: DIY Speakers and Subs   04-04-2013, 11:15 AM
Replies: 46
Views: 2,353
Posted By LINEARX
I'm always willing to compromise as long as I...

I'm always willing to compromise as long as I get my way . . .
`
None of the info on the Tang Band tweeter at any of the distributors that I checked:
Parts Express
Sears
Amazon.com
HiFi...
Forum: DIY Speakers and Subs   04-03-2013, 10:41 PM
Replies: 46
Views: 2,353
Posted By LINEARX
Tang Band says "no problem using their tweeter...

Tang Band says "no problem using their tweeter in a sealed box.
They suggest lowest frequency for crossover is 1800Hz.
`
"Here are the answers for your questions:

That tweeter has a port in...
Forum: DIY Speakers and Subs   04-03-2013, 08:26 AM
Replies: 46
Views: 2,353
Posted By LINEARX
LTD02, Where on YOUR list of priorities does a...

LTD02,
Where on YOUR list of priorities does a speaker's "power response" lie?

1) on axis response
2) constant directivity
3) power response
4) harmonic distortion
5) intermodulation...
Forum: DIY Speakers and Subs   04-02-2013, 11:19 PM
Replies: 46
Views: 2,353
Posted By LINEARX
It seems counter intuitive to limit the Beyma to...

It seems counter intuitive to limit the Beyma to 1500Hz while it sounds good at this point in the experimental stage, playing to 2300Hz.
On the other hand 1500Hz is further down the spectrum...
Forum: DIY Speakers and Subs   04-01-2013, 10:53 PM
Replies: 46
Views: 2,353
Posted By LINEARX
coctostan thanks for commenting, I have NOT...

coctostan thanks for commenting,
I have NOT been taking measurements nor simulations. I have made crossover changes in situ and noted changes using pink noise and RTA
Mike is the ECM 8000 and...
Forum: DIY Speakers and Subs   03-31-2013, 07:09 PM
Replies: 46
Views: 2,353
Posted By LINEARX
You've pretty much got the picture. ` The...

You've pretty much got the picture.
`
The tweeter will have the 2nd order crossover and the Beyma will have a 4th order for the first prolonged listening session.
The 2nd order may be the final...
Forum: DIY Speakers and Subs   03-31-2013, 02:19 PM
Replies: 46
Views: 2,353
Posted By LINEARX
Thanks for the talk back. It helps. A useful...

Thanks for the talk back. It helps.
A useful tool was the WT2 woofer tester. It made it easier to flatten the Beyma's impedance rise through the crossover region
using the correct component values...
Forum: DIY Speakers and Subs   03-30-2013, 11:20 PM
Replies: 46
Views: 2,353
Posted By LINEARX
`The Beyma 10" is definitely designed with PRO...

`The Beyma 10" is definitely designed with PRO Audio in mind. I knew that going in.
The data sheet had most info I needed except for off axis plots.
With my limited test equipment a, WT2 Woofer...
Forum: DIY Speakers and Subs   03-30-2013, 07:07 PM
Replies: 46
Views: 2,353
Posted By LINEARX
R Swerdlow My first post was back in February....

R Swerdlow
My first post was back in February. At that time I asked other DIYers if they had any opinions or experience with the drivers. I hadn't started the building process then.
No one with...
Forum: DIY Speakers and Subs   03-30-2013, 09:40 AM
Replies: 12
Views: 850
Posted By LINEARX
I got RTA and DSP and STILL diddle.

I got RTA and DSP and STILL diddle.
Forum: DIY Speakers and Subs   03-30-2013, 07:29 AM
Replies: 12
Views: 850
Posted By LINEARX
Quote:Originally Posted by Bill...

Quote:Originally Posted by Bill Fitzmaurice http://www.avsforum.com/img/forum/go_quote.gif...
Forum: DIY Speakers and Subs   03-29-2013, 11:13 PM
Replies: 12
Views: 850
Posted By LINEARX
Thanks for the reply s. I have the space to...

Thanks for the reply s.
I have the space to place the speakers at the wall or in front.
I'm still in construction stage and only have the first cab built.
It sounds like the MCACC can adjust for...
Forum: DIY Speakers and Subs   03-29-2013, 10:57 PM
Replies: 46
Views: 2,353
Posted By LINEARX
Thanks for the reply s. The manufacturers data...

Thanks for the reply s.
The manufacturers data sheet shows a fair response to about 2200Hz. They don't have any off-axis charts.
I've successfully mated these two drivers with 2nd order x-over at...
Forum: DIY Speakers and Subs   03-28-2013, 12:51 AM
Replies: 11
Views: 1,664
Posted By LINEARX
You SHOULD use some damping material to deaden...

You SHOULD use some damping material to deaden interior sound reflections for both sealed AND ported enclosures.
Any soft sound absorbent material will do including gray egg crate foam or old blue...
Forum: Digital Hi-End Projectors - $3,000+ USD MSRP   03-10-2013, 10:54 PM
Replies: 6
Views: 1,056
Posted By LINEARX
"looks terrible" doesn't tell us much. The...

"looks terrible" doesn't tell us much.
The Disney WOW test DVD is NOT a professional piece of gear.
It will get you in the ball park subject to finer adjustments of your own.
Your listed...
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