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Search: Keyword(s): ; Posts Made By: rajacat
Forum: DIY Speakers and Subs   03-27-2016, 11:50 AM
Replies: 49
Views: 1,253
Posted By rajacat
Ah, I see,:o the diaphragm is the same diameter...

Ah, I see,:o the diaphragm is the same diameter as the voice coil. If you are going to experiment with the BA, it would be interesting to hear it with a beryllium phragm. Do you known if the BA is a...
Forum: DIY Speakers and Subs   03-26-2016, 03:14 PM
Replies: 49
Views: 1,253
Posted By rajacat
http://www.diysoundgroup.com/compression-drivers/b...

http://www.diysoundgroup.com/compression-drivers/ba-750.html
Forum: DIY Speakers and Subs   03-26-2016, 02:54 PM
Replies: 49
Views: 1,253
Posted By rajacat
2" voice coil, 1" diaphragm. Go back to the link....

2" voice coil, 1" diaphragm. Go back to the link. It says 1". I should know because I own a pair. I'm not sure what you mean by the surround material.:confused: The BA750 weighs in at a hefty 10 lbs....
Forum: DIY Speakers and Subs   03-26-2016, 02:23 PM
Replies: 49
Views: 1,253
Posted By rajacat
seos 18

seos 18
Forum: DIY Speakers and Subs   03-26-2016, 02:21 PM
Replies: 49
Views: 1,253
Posted By rajacat
[QUOTE=augerpro;42717810]What is diaphragm size...

[QUOTE=augerpro;42717810]What is diaphragm size of teh BA-750? What is the surround material made of? I like the coated Ti part.[/QUOT

1" Click on the link.
Forum: DIY Speakers and Subs   03-26-2016, 11:17 AM
Replies: 55
Views: 2,394
Posted By rajacat
In other words, they compress the music....

In other words, they compress the music. Compression seems to be mostly in pop music. Jazz and classical generally have much higher production standards therefore it sounds more like live music when...
Forum: DIY Speakers and Subs   03-26-2016, 09:19 AM
Replies: 49
Views: 1,253
Posted By rajacat
The Denovo Audio BA-750 compression driver is an...

The Denovo Audio BA-750 compression driver is an unusual compression driver to say the least. While testing this model and different diaphragms, one audio forum member designated it the Big A**...
Forum: DIY Speakers and Subs   03-25-2016, 09:59 AM
Replies: 49
Views: 1,253
Posted By rajacat
Denovo Audio BA-750. Goes down to approx. 700hz. ...

Denovo Audio BA-750. Goes down to approx. 700hz.


http://www.diysoundgroup.com/compression-drivers/ba-750.html
Forum: DIY Speakers and Subs   03-10-2016, 06:13 PM
Replies: 449
Views: 8,114
Posted By rajacat
Quad stats?

Quad stats?
Forum: DIY Speakers and Subs   03-10-2016, 05:38 PM
Replies: 449
Views: 8,114
Posted By rajacat
What box? I bet you have open baffle speakers...

What box? I bet you have open baffle speakers therefore no box, no internal wires.:)
Forum: DIY Speakers and Subs   03-10-2016, 04:12 PM
Replies: 449
Views: 8,114
Posted By rajacat
If you can measure everything, please do. How do...

If you can measure everything, please do. How do you measure imaging,esp. solidity of center image? Perceived depth of field? Texture? Please explain. Show me the numbers!
Forum: DIY Speakers and Subs   03-10-2016, 01:21 PM
Replies: 449
Views: 8,114
Posted By rajacat
The power of suggestion works both ways. If you...

The power of suggestion works both ways. If you have a preconceived notion that wire quality can't make an audible difference, your mind will adjust so that it won't perceive a difference even if...
Forum: DIY Speakers and Subs   03-10-2016, 01:05 PM
Replies: 449
Views: 8,114
Posted By rajacat
No, you're the ignorant one.:kiss: It's obvious...

No, you're the ignorant one.:kiss: It's obvious you've been absorbed into the HT groupthink here. Do you go any other place for your "knowledge".
Forum: DIY Speakers and Subs   03-10-2016, 12:52 PM
Replies: 449
Views: 8,114
Posted By rajacat
If you go to other forums, there are quite a few...

If you go to other forums, there are quite a few very well known speaker manufactures, professional amp builders, DAC builders, etc. that would back up my statements. Of course you would say that...
Forum: DIY Speakers and Subs   03-10-2016, 11:13 AM
Replies: 449
Views: 8,114
Posted By rajacat
If you can't hear the difference between two sets...

If you can't hear the difference between two sets of substantially different ICs' then your system is not very resolving or your hearing is defective or your mind is set in concrete. Actually, since...
Forum: DIY Speakers and Subs   02-08-2016, 11:25 AM
Replies: 303
Views: 6,504
Posted By rajacat
How does vitamin C relate to the topic at hand?...

How does vitamin C relate to the topic at hand? LOL
Forum: DIY Speakers and Subs   02-08-2016, 08:10 AM
Replies: 303
Views: 6,504
Posted By rajacat
That's true. MDF is an OK material and its CHEAP...

That's true. MDF is an OK material and its CHEAP thereby cost effective but its not the best material. Most speaker manufacturers are building to a price point. If you're into DIY then those cost...
Forum: DIY Speakers and Subs   02-07-2016, 01:26 PM
Replies: 303
Views: 6,504
Posted By rajacat
Here's Albert Von Schweikert's take on speaker...

Here's Albert Von Schweikert's take on speaker design. http://www.vonschweikertaudio.com/#!designer-bio/cjbm
Notice that he favors constrained layer damping in his speakers. I don't think that it...
Forum: DIY Speakers and Subs   01-25-2016, 08:32 PM
Replies: 14
Views: 254
Posted By rajacat
5200 comes in different curing times. I'll...

5200 comes in different curing times.
I'll have to agree that Sikaflex and 5200 are little overkill, strength wise, for this particular application. However, they're great for constrained layer...
Forum: DIY Speakers and Subs   01-25-2016, 06:41 PM
Replies: 14
Views: 254
Posted By rajacat
Nothing is stronger than 5200. Sikaflex...

Nothing is stronger than 5200. Sikaflex polyurethane is virtually the same product. 5200 is used in yacht construction to glue hull to deck.
Forum: DIY Speakers and Subs   01-25-2016, 11:40 AM
Replies: 14
Views: 254
Posted By rajacat
Yeah, 5200 is similar; a little more expensive....

Yeah, 5200 is similar; a little more expensive. I'd get the fast drying version which might hold its shape better.
Forum: DIY Speakers and Subs   01-25-2016, 11:14 AM
Replies: 14
Views: 254
Posted By rajacat
Yes. The application doesn't have to be perfect...

Yes. The application doesn't have to be perfect since the glue is already fairly strong but you might as well do it since you have easy access. Yes, it's similar to applying silicone caulk. A nice...
Forum: DIY Speakers and Subs   01-25-2016, 10:35 AM
Replies: 14
Views: 254
Posted By rajacat
I'd leave the braces in but apply more adhesive...

I'd leave the braces in but apply more adhesive at the interfaces. Perhaps use an adhesive such as Sikaflex 291 which is absurdly strong, can be shaped with your gloved finger, holds its shape and...
Forum: DIY Speakers and Subs   11-22-2015, 11:26 AM
Replies: 10
Views: 276
Posted By rajacat
GIK manufactures lightweight expanded polystyrene...

GIK manufactures lightweight expanded polystyrene diffusers.

http://www.gikacoustics.com/product/gik-acoustics-gridfusor/
Forum: DIY Speakers and Subs   11-13-2015, 12:20 PM
Replies: 23
Views: 680
Posted By rajacat
Here's some interesting bronze horns. I could...

Here's some interesting bronze horns. I could visualize these in some elegant castle tucked away in the Alps.:)

...
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