Dummy rectangular horn

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   Hi all,
I want to make a pair of dummy rectangular horns for the back of my truck.
I know this seems strange to you speaker builders but ....
Please see the picture of the back of the truck.
Two high/midrange speakers are now mounted in the back wall just near the upper outer corners.
There are two big subs in the floor.
The entire plywood truck body is one big speaker box. No enclosures behind the speakers.
The sound outside is good as it is. Inside is not tollerable :)

But for appearance only I want rectangular horns outside the upper speakers.
Likely curved ones not straight.
Maybe they have to be made of perforated material so as not to muck up the sound ?
Speaker mouths are 9" wide and rectangular.

Any idea how to get a profile to make the horn sections ?

I know you all going to say "don't do it" but it's just for the appearance and I'm sure you will appreciate that on a 90 year old truck.

https://drive.google.com/open?id=1XAcfmFXCf7Pa_OTY8s5V_WH7QOF171nd

https://drive.google.com/open?id=1XAcfmFXCf7Pa_OTY8s5V_WH7QOF171nd

Edited by RavinCorvid - 15 May 2018 at 11:27am

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RavinCorvid Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Joined: 12 May 2018 Location: Australia Status: Offline Points: 5	Post Options Post Reply Quote RavinCorvid Report Post Thanks(0) Quote Reply Topic: Dummy rectangular horn Posted: 12 May 2018 at 11:13pm
	Hi all, I want to make a pair of dummy rectangular horns for the back of my truck. I know this seems strange to you speaker builders but .... Please see the picture of the back of the truck. Two high/midrange speakers are now mounted in the back wall just near the upper outer corners. There are two big subs in the floor. The entire plywood truck body is one big speaker box. No enclosures behind the speakers. The sound outside is good as it is. Inside is not tollerable :) But for appearance only I want rectangular horns outside the upper speakers. Likely curved ones not straight. Maybe they have to be made of perforated material so as not to muck up the sound ? Speaker mouths are 9" wide and rectangular. Any idea how to get a profile to make the horn sections ? I know you all going to say "don't do it" but it's just for the appearance and I'm sure you will appreciate that on a 90 year old truck. https://drive.google.com/open?id=1XAcfmFXCf7Pa_OTY8s5V_WH7QOF171nd https://drive.google.com/open?id=1XAcfmFXCf7Pa_OTY8s5V_WH7QOF171nd Edited by RavinCorvid - 15 May 2018 at 11:27am

djeddie Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 April 2004 Location: Bristol Status: Offline Points: 4125	Post Options Post Reply Quote djeddie Report Post Thanks(0) Quote Reply Posted: 13 May 2018 at 11:42am
	First thing I'd do is not use photobucket! We CANNOT see the pictures unless clicking through.
	Chas n Dave : it's like Drum and Bass but with beards. E=mc² ±3dB

Hemisphere Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 21 April 2008 Status: Offline Points: 2272	Post Options Post Reply Quote Hemisphere Report Post Thanks(0) Quote Reply Posted: 13 May 2018 at 12:47pm
	Wow, you weren't kidding, 90 years old! Maybe buy some old gramophone horns and mount them instead Seriously though I think the aesthetic you're looking for might be better achieved by buying some ancient metal horns and mounting them on the roof, as such a vehicle would have had when in production. Edited by Hemisphere - 13 May 2018 at 12:51pm
	Phase 1: Post on Speakerplans Phase 2: ????? Phase 3: Profit!

RavinCorvid Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Joined: 12 May 2018 Location: Australia Status: Offline Points: 5	Post Options Post Reply Quote RavinCorvid Report Post Thanks(0) Quote Reply Posted: 15 May 2018 at 11:22am
	Damn photobucket. Try these https://drive.google.com/open?id=1XAcfmFXCf7Pa_OTY8s5V_WH7QOF171nd https://drive.google.com/open?id=1LyHxrdwoTWFrrKuPtNSr2zf72pDeZcUg

RavinCorvid Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Joined: 12 May 2018 Location: Australia Status: Offline Points: 5	Post Options Post Reply Quote RavinCorvid Report Post Thanks(0) Quote Reply Posted: 15 May 2018 at 11:25am
	Gramaphone horns typically have only a small inlet and I need to inlet the sound from the speakers I have which are 9" wide. Could mount dummies somewhere not on the speakers but then what would I cover the speaker with ? Still need something.

Hemisphere Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 21 April 2008 Status: Offline Points: 2272	Post Options Post Reply Quote Hemisphere Report Post Thanks(0) Quote Reply Posted: 15 May 2018 at 12:08pm
	You could cover the speakers with all sorts of things. A ply grille with really large holes or a decorative pattern cut in it wouldn't indicate a speaker to most people, especially if there were other components mounted which looked very much like speakers. Trying to add a dummy horn to speakers that already work well without any horn doesn't seem like a good idea. Perforation of the horn to stop it interfering with the audio would look bizarre.
	Phase 1: Post on Speakerplans Phase 2: ????? Phase 3: Profit!

RavinCorvid Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Joined: 12 May 2018 Location: Australia Status: Offline Points: 5	Post Options Post Reply Quote RavinCorvid Report Post Thanks(0) Quote Reply Posted: 15 May 2018 at 12:35pm
	Yeah thanks Hemisphere. But wherever I mount them I still need to fabricate something that looks like an old style speaker horn. Even if it's made of cardboard. What I suppose I'm after is a drawing to cut out the sections from.