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Old 11th May 2009, 01:53 AM   #1
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Join Date: Aug 2008
Location: Sydney
Default C-Horn now built

Folks

Iím very proud to say the C-Horn is now built (apart from painting) and is now up and running in my lounge room.

I'm using a DX3 initially, but I'll also be trying the PM2A plus a Fotex 206E. Some tweaking of comp chamber underway now with felt covered wooden blocks.

Very happy with presentation of cabinets (at 1400mm tall), and great sound. Not as deep as the Big Funds...but very good none-the-less. Impeccable sound stage.

For a first-up design, I'm wrapped.

Hereís the pic of the speaker in my lounge room.

http://gallery.audioasylum.com/cgi/w...&w=1014&h=1145

or here

http://gallery.audioasylum.com/cgi/v...&w=1014&h=1145

Here's what it will look like next week. I'm going for the dark red with a metallic fleck.

http://gallery.audioasylum.com/cgi/w...g&w=1027&h=770

or here

http://gallery.audioasylum.com/cgi/v...=&w=1027&h=770

Kind regards.

Andrew Tilsley.
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Old 11th May 2009, 02:14 AM   #2
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Wow, those look fantastic! The things I'd do to get my hands on a CNC router!
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Old 11th May 2009, 02:19 AM   #3
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I don't have a router either.....

Just outsource my projects....

Cheers.
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Old 11th May 2009, 06:07 AM   #4
hm is offline hm  Europe
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Hello,

very cool, but expensive.

if possible make a measurement and an Imp for us.
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http://www.hm-moreart.de
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Old 11th May 2009, 06:09 AM   #5
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I will.

Waiting to swap around some drivers first before proper measurements.

Regards.
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Old 11th May 2009, 08:21 AM   #6
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Location: BrisVegas
Looks very nice Ė an elegant aesthetic design. I am not a fan of the see through sides, which is a personal, (apparently) minority, aesthetic preference.

Will you be offering these for sale?

Also, what bonding agent is used in the MDF board; urea-formaldehyde? If yes, with a big chunk-o-MDF like that I'd ensure decent ventilation in that room. IIRC, although not fully understood, prolonged exposure formaldehyde vapour (which degasses from MDF) may cause a range of non-specific toxic effects at levels lower than those considered "safe" for most. Then there are the acute signs and symptoms of short-term exposure to excessive amounts... I'd not want to work with it an ongoing capacity. I am not saying it will be a problem; just suggesting caution.

Nice work.

Cheers
Raymond
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Old 11th May 2009, 08:59 AM   #7
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Raymond

Standard PVA is used.

I'm looking at alternate MDF products with less/minimal nasties...plus new plys and a great product called panzerholz....though expensive.

Check out the base of the Clear Audio turntable here -

http://www.dagogo.com/ClearaudioAnniversarytable.html

I can CNC this material up to 60mm per slice.

And yes...the C-Horn is a sale product, in unassembled, part assembled or fully built stages. (Note - I'm a 'manufacturer' so I'm not allowed to directly promote....)

Andrew.
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Old 11th May 2009, 11:05 AM   #8
JeanM is offline JeanM  Canada
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Quote:

I'm looking at alternate MDF products with less/minimal nasties...plus new plys and a great product called panzerholz....though expensive.
As a cabinetmaker I worked with many new MDF formulas. There are now non-toxic ones which bonding agent is cyanoacrylate glue (aka 'Crazy glue') most often. I even sampled a sheet of MDF made of powdered wheat straw and cyanoacrylate: sawing it smells like mowing the lawn.

In any case a well ventilated house is a good idea or the inside becomes quickly more polluted than the streets of a big city. Also sealing and painting the toxic MDF is essential since it slows down the rate of emanations to a minimum that is easily evacuated.
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Old 11th May 2009, 11:54 AM   #9
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Location: Cz Rep.
Hi,
Regarding MDF emissions use class E1 boards. Even if one has some small amount of formal dehyde emitting from boards, there are much more formal dehyde from a bowl of apples or strawberries in a room. Not to mention walking in a pine forrest during spring.

http://www.europanels.eu/mdf/
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Old 11th May 2009, 12:18 PM   #10
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BTW, do not be sure that plywood is glued with a formal dehyde free adhesive.....

Here is one link that provides E2,E1,E0

http://www.alibaba.com/product-gs/21...Furniture.html
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