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Re: Chicago Horn Club meet - TH sub plans

Posted by Don Bunce (A) on March 25, 2007 at 12:07:43

In Reply to: Chicago Horn Club meet - sub vs sub - how did it go? posted by freddyi on March 25, 2007 at 07:22:09:

I was going to start a separate thread,but since it is being discussed here,I might as well put the info here.

I built the tapped horn last weekend,based on the plans for the 30 hz horn William Cowan has on his website,but extended it to 90",and used the LAB12 genII driver,as a start,to see what these things will do. I was not expecting it to work anywhere near as well as it does on the first try.

For shear output,the LAB is the winner,(I'm talking about stupid loud,knocking things off of shelves,pissing off the neighbors,and getting a visit from the police)but for any normal use,that is really not a factor.

The tapped horn wins hands down for low freq extension,plus it is much easier to build,and can be used standing in a corner,laying down along a wall,or mounted under the floor,through a wall,or in a ceiling.

The subs are crossed over at 90 hz,LFE output from the Yamaha DSP-A1 HT amp,and powered by a Carver TFM-42 amp,one channel for each sub,with level adjusted for the difference in efficiency.

Except for music with really deep bass content,the difference in sound is pretty small,with the LABhorns being slightly tighter.

I'm not ready to haul the LABs out to the curb just yet,but for anyone who doesn't have room for the LABs,the decision would be a no brainer...

Now if I build 3 more of them....hehehe...

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