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Ever think of building a Cornu Spiral horn? Now you can!
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Old 28th July 2017, 12:57 AM   #2301
Jerms is offline Jerms  United Kingdom
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Originally Posted by Jerms View Post
Might there be some merit in an ML-Cornu?
There would seem to be poterntial for deeper bass in a smaller package.
D'oh! Just realised the answer is buried in this topic.... Though I haven't seen examples built. Would think some form of loading to all 4 horns would be required.
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Old 28th August 2017, 10:26 AM   #2302
scott68 is offline scott68  United States
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Default Which type of wall mounted design is the best?

Besides a small Tapered T-Line, I'm getting ready to build, I want to figure out which is the best wall mounted design for my next build.
First, I would like an expert in either T-Lines or Horns to tell me:
1. Why would you build a dual line horn (first picture) or a quad line (2nd picture = Cornu) vs a one line horn? And if a dual or quad is better, would it also be better to build a dual or quad Transmission line?


2. Assuming you have enough amp power and in a smaller room, would a a mass loaded tapered transmission line vs a Cornu enclosure have more articulate bass? I placed the third picture there to simulate a T-Line (although, since the speaker is in the middle vs offset (T-line would probably have it 1/3 of the way down the line) it probably is a cornu.


3. I want to build one with a battery powered Bluetooth amp build in, covered with a piece of cloth art.


4. What is the recommendation - T-Line or Cornu?


Thanks
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File Type: jpg Dual horn, quad horn or T-Line.jpg (25.8 KB, 482 views)
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Old 29th August 2017, 12:55 AM   #2303
xrk971 is offline xrk971  United States
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Ever think of building a Cornu Spiral horn? Now you can!
Hi Cornu if you want big sound and covered in art cloth.
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Old 3rd September 2017, 02:57 PM   #2304
koolhelpdeskdude is offline koolhelpdeskdude  Hong Kong
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Hi there

This is one of my fav thread. One question from a newbie builder, if I want a safe layout and guide to build my very own Cornu speakers, where could I find the detailed plan and details? Many thanks

Cheers
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Old 3rd September 2017, 05:33 PM   #2305
xrk971 is offline xrk971  United States
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Ever think of building a Cornu Spiral horn? Now you can!
There is a nice plan in PDF by Planet10 somewhere early in the thread. You will need to read the thread to understand the build techniques of using foamcore and hotmelt glue. The plans are for a full scale size one which is about 27in. That fits a 4in driver and I have had pretty good success scaling that for larger/smaller drivers.
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Old 3rd September 2017, 05:48 PM   #2306
Cal Weldon is offline Cal Weldon  Canada
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Ever think of building a Cornu Spiral horn? Now you can!
If you go here, bottom right, click on it, take a screen shot then off to the printer you go.
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Old 10th September 2017, 02:23 PM   #2307
koolhelpdeskdude is offline koolhelpdeskdude  Hong Kong
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Hi Carl

Thanks for message. The is nothing on the bottom right of your post.

Cheers

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If you go here, bottom right, click on it, take a screen shot then off to the printer you go.
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Old 10th September 2017, 03:41 PM   #2308
Cal Weldon is offline Cal Weldon  Canada
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Ever think of building a Cornu Spiral horn? Now you can!
The bottom right picture.

Here it is again.
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File Type: pdf Cornu orig.pdf (3.5 KB, 170 views)
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Old 11th September 2017, 12:01 AM   #2309
koolhelpdeskdude is offline koolhelpdeskdude  Hong Kong
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Thanks Cal

Quote:
Originally Posted by Cal Weldon View Post
The bottom right picture.

Here it is again.
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Old 21st October 2017, 04:23 PM   #2310
PJN is offline PJN  United States
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Hello Cornu fans,

I'm looking for some advice on some replacement drivers. A while back I built a pair of Cornu spiral horns for my son. To make a long story short he's burned up a set of old TB w4 aluminum coned drivers, and just recently a set of TB W4 bamboo drivers. Both sets were old drivers that I had laying around so they did not really cost me anything, and both sounded great in the Cornu. Now I need to actually buy something to replace the drivers and I really don't want to spend too much owing to the fates of the last two driver sets. I've been looking at the MA CHR-70 ($36), and the MA Pluvia7 ($45). I haven't heard either, or any other MA drivers, but the size and budget fits the bill. I'd appreciate any opinions on these or any other 4" fullranger with a round frame that would easily drop in to the cornu without modifications. These MA drivers would fit.

Thanks,

Paul
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