GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.

Post Subject: Some answers.Posted by Romy the Cat on: 7/17/2010

Msaudio, constructivism is almost squirting out of you, doesn’t it? But it ok, I got accustom to your attitude. If I feel that I will be able to get only 80 Hz then I would not proceed with this project. Do not worry about devalue of my property: unless YOU move in my neighborhood the value of my house will be strong.

Jessie, There is no need to worry about the rear chamber access. The attic is continuing on the right and there is a good access to it from another side of the house. The central AC unit is sitting at another side of the house as well and here are juts the tubes to cool the cathedral room. In fact the central AC unit sits outside on the loan and attic there is just air collector.

Paul, the pictured is in away misleading. You see the old roof the will be removed. There is a good 15 feet depth in there even more so it will not be a problem. One rafter one each side of the center beam will be cut and the neck of the horn will be glide in there. The horn will be built to jam the top beams and the bottom rafter – so it needs to be properly designed to begin with. Preliminary the how will be rectangular – the way how the cut is done. The opening now it larger then I thought and it is 12770sq cm or good for 40Hz hyperbolic. The final circulations are not done yet. I do not care about isolation now as this cathedral ceiling was made to be vented. The horizontal beam that holds the old rafters is made with two 2X10 and two 2x4. I think it is good and will hold. However, if I will load the horn with sand (I might as I am a psycho) then I have an idea how to solidify everything with very little expense. I plan to attach to the main ridge beams that support the cathedral rood metal suspenders and to anchor them on the 2X10 horizontal beams. This way the more I load sand on the horn, the more it will punch the horizontal beams down, the steal suspenders will punch the ridge beams down and the ridge beams will squish the whole construction closer together. I mean I will not push the sealing does but will spread the load to the semi-horizontal force vectored to the center beam of the roof. I might not k now how I shall call all elements in English but here is a drawing that explains what I would like to do with mass distribution.

The caT

Rerurn to Romy the Cat's Site