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Search: Posts Made By: BrickTop
Forum: DIY Speakers and Subs   05-13-2015, 04:22 PM
Replies: 63
Views: 1,709
Posted By BrickTop
Thanks Erich. Other colors are OK. Red rocks...

Thanks Erich. Other colors are OK. Red rocks though.
Forum: DIY Speakers and Subs   05-13-2015, 03:53 PM
Replies: 63
Views: 1,709
Posted By BrickTop
So ultimately, horns are still a much better way...

So ultimately, horns are still a much better way to control directivity? I guess looking for a cheaper way to do a three way with very low directivity is either going to be very tricky with...
Forum: DIY Speakers and Subs   05-13-2015, 01:02 PM
Replies: 63
Views: 1,709
Posted By BrickTop
OK, yet one more proposed format. This one is a...

OK, yet one more proposed format. This one is a bit inspired by one of the DIY group offerings.
W
MM
T
MM
W

So, I would use a SEOS 18 with a DE250 in the middle, flanked by 2 sets of two 8"...
Forum: DIY Speakers and Subs   05-12-2015, 09:47 PM
Replies: 63
Views: 1,709
Posted By BrickTop
Here is the only one I've seen. The Radian is...

Here is the only one I've seen. The Radian is definitely flatter but will not play as low and from 300 hz to 1200 hz it pretty easy to tame, especially with an active set up.
...
Forum: DIY Speakers and Subs   05-12-2015, 03:25 PM
Replies: 63
Views: 1,709
Posted By BrickTop
I'm getting to be a pretty savy woodworker, now...

I'm getting to be a pretty savy woodworker, now that I have proper tools, so the Parham horn construction doesn't enter into the equation. As an aside, Erich from Diysoundgroup is out of the red...
Forum: DIY Speakers and Subs   05-12-2015, 02:43 PM
Replies: 63
Views: 1,709
Posted By BrickTop
Great sound, high sensitivity, high directional...

Great sound, high sensitivity, high directional control, dynamics out the wazoo. My method of getting there is obviously open to just about anything...minus mortgaging the house. I really would...
Forum: DIY Speakers and Subs   05-12-2015, 01:32 PM
Replies: 63
Views: 1,709
Posted By BrickTop
I had forgotten about a previous option I was...

I had forgotten about a previous option I was considering until I saw Scott Simonian's avatar...a Parham mid horn using the Eminance Delta 10. This is a huge step in a different direction but would...
Forum: DIY Speakers and Subs   05-12-2015, 11:46 AM
Replies: 63
Views: 1,709
Posted By BrickTop
I know the article linked to Facebook. Acoustic...

I know the article linked to Facebook. Acoustic Elegance had a set up, and Seaton I believe. Searched again and nothing came up. Go figure...ghost page.

I was thinking. My original design was...
Forum: DIY Speakers and Subs   05-12-2015, 09:28 AM
Replies: 63
Views: 1,709
Posted By BrickTop
I'm set on the SEOS...I've been messing around...

I'm set on the SEOS...I've been messing around with likely over 20 various waveguides of all sizes and dollar amounts, and none have less coloration than the SEOS.

I recently found an article...
Forum: Audio Gear   05-11-2015, 02:11 PM
Replies: 10
Views: 729
Posted By BrickTop
Bump

Bump
Forum: DIY Speakers and Subs   05-11-2015, 01:54 PM
Replies: 63
Views: 1,709
Posted By BrickTop
I want the Be diaghrams NOW. That is an amazing...

I want the Be diaghrams NOW. That is an amazing difference. I guess the 1 gagillion dollar question is...will spending another $4K make my speakers that much better than the lowly SEOS 15 and DE250?...
Forum: DIY Speakers and Subs   05-11-2015, 11:56 AM
Replies: 63
Views: 1,709
Posted By BrickTop
Nothing like posting the most in my own thread :)...

Nothing like posting the most in my own thread :)

OK Tip24/96, you've peaked my interest about the Radian 951. I spoke to the owner of USSpeakers and he said without question even the standard...
Forum: DIY Speakers and Subs   05-11-2015, 06:05 AM
Replies: 63
Views: 1,709
Posted By BrickTop
It was definitely price motivation and good word...

It was definitely price motivation and good word of mouth due to an Audiokarma speaker that got popular (at least I think it was audiokarma) I also realize that I will need 3 new horns to take...
Forum: DIY Speakers and Subs   05-11-2015, 12:33 AM
Replies: 63
Views: 1,709
Posted By BrickTop
The photos look worse than they are, but I still...

The photos look worse than they are, but I still suspect it contributes to the ripple.
Forum: DIY Speakers and Subs   05-10-2015, 07:49 PM
Replies: 63
Views: 1,709
Posted By BrickTop
The difference in throat and the rest of the horn...

The difference in throat and the rest of the horn at the line shown is < 1mm.
Forum: DIY Speakers and Subs   05-10-2015, 04:18 PM
Replies: 63
Views: 1,709
Posted By BrickTop
The measurements are gated and I made sure the...

The measurements are gated and I made sure the impulse response had no room reflection in it.

The horn is pretty slick...the two throats slide down against the horn where the shape is more oblong...
Forum: DIY Speakers and Subs   05-10-2015, 04:01 PM
Replies: 9
Views: 228
Posted By BrickTop
I have read that Wayne Parham's corner horns are...

I have read that Wayne Parham's corner horns are exemplary with respect to boundary reflections. Would a baffle wall be a good idea for a 90? horn?

In a long narrow room like mine, 11x31, it would...
Forum: DIY Speakers and Subs   05-10-2015, 09:53 AM
Replies: 63
Views: 1,709
Posted By BrickTop
The graphs shown are about 5 feet away aimed...

The graphs shown are about 5 feet away aimed directly at the CD opening with a Speclab calibrated umm-6. I did a few close to the mouth and the ripple went away, but the break up is still very much...
Forum: DIY Speakers and Subs   05-10-2015, 09:27 AM
Replies: 63
Views: 1,709
Posted By BrickTop
After I remeasured, I realized the over all FR...

After I remeasured, I realized the over all FR shape is good. There are obviously some horn related artifacts in the lower band from 1k to 10k. When I measure closer they go away, so the horn is...
Forum: DIY Speakers and Subs   05-10-2015, 02:59 AM
Replies: 9
Views: 228
Posted By BrickTop
Thank you LTD02...that clarified much. On further...

Thank you LTD02...that clarified much. On further perusal I discovered 18 sound lists both the low end loading AND the directivity control frequencies. Makes much sense, I never thought of the two...
Forum: DIY Speakers and Subs   05-09-2015, 11:04 PM
Replies: 63
Views: 1,709
Posted By BrickTop
OK so I had my mic cal file all messed up...

OK so I had my mic cal file all messed up somehow, it looks like the normal roll-off from a CD power response. I included a DE250 on a SEOS 15 for reference.

What I do see is a lot more ripple on...
Forum: DIY Speakers and Subs   05-09-2015, 10:11 PM
Replies: 63
Views: 1,709
Posted By BrickTop
I have a few frequency graphs of the Radian with...

I have a few frequency graphs of the Radian with the RCF lens...doesn't look anything like the Radian spec sheet. I will say from 500 Hz to 10KHz it is super flat, but at 10K, it drops like a rock...
Forum: DIY Speakers and Subs   05-09-2015, 10:03 PM
Replies: 9
Views: 228
Posted By BrickTop
Horn lens shape, frequency cutt-off and directivity

I have a question that perhaps one of you smarter than I can answer. I have been looking at different horns for months now...and trying a lot of them. What I have found is that size doesn't seem to...
Forum: DIY Speakers and Subs   05-08-2015, 04:10 PM
Replies: 63
Views: 1,709
Posted By BrickTop
The Radian uses a 3" diaphragm. I know it is...

The Radian uses a 3" diaphragm. I know it is available from us speakers with a Be diaphragm. But it is well over twice the cost.

I can certainly post graphs when I get to measure it. Hopefully...
Forum: DIY Speakers and Subs   05-08-2015, 03:52 PM
Replies: 63
Views: 1,709
Posted By BrickTop
I have an RCF HF64...

I have an RCF HF64 http://www.rcf.it/products/precision-transducers/horns/hf64. I was trying it out with a selenium D250X for a three way with the B&C 250 up high and it held its low end directivity...
Showing results 1 to 25 of 628

 
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