New MT122

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   Hi,
Now that the fibreglass horns are available, how would i go about building a suitable cabinet for them?
Jamie

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whitehousejamie Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 08 March 2004 Location: United Kingdom Status: Offline Points: 1485	Post Options Post Reply Quote whitehousejamie Report Post Thanks(0) Quote Reply Topic: New MT122 Posted: 28 September 2004 at 4:54pm
	Hi, Now that the fibreglass horns are available, how would i go about building a suitable cabinet for them? Jamie

Rog Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Rogers Archive Posts Joined: 23 March 2010 Status: Offline Points: 2166	Post Options Post Reply Quote Rog Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 5:17pm
	Hi, I think Biotech has made some. Just make a trap cabinet and load the horns in from the front. The rear chamber for the 12's needs to be as small as you can make it. So what you are really doing is attaching the 12" driver to the horn, then screwing the horn with driver on it into the cabinet. So the driver is front mounted. Use loats of gasket tape between driver and baffle and measure the distance from front of cabinet to the baffle good.

whitehousejamie Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 08 March 2004 Location: United Kingdom Status: Offline Points: 1485	Post Options Post Reply Quote whitehousejamie Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 5:23pm
	I see what you mean, so the tape is basically to seal the rear chamber, as you cant actually bolt the driver to the baffle.

Rog Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Rogers Archive Posts Joined: 23 March 2010 Status: Offline Points: 2166	Post Options Post Reply Quote Rog Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 5:29pm
	Yes, the horn with driver is only held in from the front. The rear of the cabinet is sealed. I expect someone will come up with a better solution, but for now it works. I have done a quick drawing.

Timber_MG Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 March 2004 Location: South Africa Status: Offline Points: 1454	Post Options Post Reply Quote Timber_MG Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 5:44pm
	Perhaps one could rout out a ring, cut it in half, put it around the horn and insert t-nuts as to bolt through this from the rear chamber? Has anyone measured this horn? Certainly sounds very promising.

whitehousejamie Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 08 March 2004 Location: United Kingdom Status: Offline Points: 1485	Post Options Post Reply Quote whitehousejamie Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 5:49pm
	Or, put the baffle between the horn and driver, and use longer bolts to connect all three parts together. Although this would increase the horn length by 18mm. Jamie

Rog Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Rogers Archive Posts Joined: 23 March 2010 Status: Offline Points: 2166	Post Options Post Reply Quote Rog Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 5:53pm
	No. This would give a larger front chamber and stop the horn from working as well. Put your thinking head on.

Timber_MG Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 March 2004 Location: South Africa Status: Offline Points: 1454	Post Options Post Reply Quote Timber_MG Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 5:56pm
	Except if one were to mount some sort of phasing plug to this baffle, though IIRC the horn comes with one right?

whitehousejamie Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 08 March 2004 Location: United Kingdom Status: Offline Points: 1485	Post Options Post Reply Quote whitehousejamie Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 5:58pm
	Yeah, its comes complete with phase plug... http://www.proaudioparts.co.uk/index.php?id=pornhorn

loophole Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 02 March 2004 Status: Offline Points: 469	Post Options Post Reply Quote loophole Report Post Thanks(0) Quote Reply Posted: 28 September 2004 at 6:59pm
	no, it's me, not biotech who's just got some. though he has heard them, and i believe shares my views on their excellent sound ;) i am finishing their cabinets tommorow, i think i might try mounting the driver as shown on the diagram with some slight changes. first drilling holes through the baffle at the driver mounting points, so i can use long bolts and bolt straight through the driver, through the baffle, and into the t-nuts inside the horn. i'll use gasket tape around the baffle edge and some between the horn mouth and front mounting edges, i'll also screw through there, to provide extra support and stop any vibrations will let you all know how it works joe

jamescg Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 28 May 2005 Location: United States Status: Offline Points: 17	Post Options Post Reply Quote jamescg Report Post Thanks(0) Quote Reply Posted: 09 June 2005 at 12:38pm
	do anyone have the web site or any kind of contact to biotech. i would lov apair of those horns. thank u , james

bigmike216 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 30 November 2004 Location: Canada Status: Offline Points: 17	Post Options Post Reply Quote bigmike216 Report Post Thanks(0) Quote Reply Posted: 13 June 2005 at 3:26am
	you can get them from proaudioparts.