raj wrote on Tue, 15 February 2005 14:50 |
Walt , Are you thinking of designing another version of the punisher which will
be 40hz and also more driver friendly ?
Rory B , I think that problem is not there in the autotuba as the driver is only 100w
, also many have tested it and found it satisfactory .
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I designed a single 12"/double 8" horn for hifi use wich i think can be tuned for PA use. The hifi version geos down to 30 Hz (i have build the horn with double 8" configuration.
With some tweaking i think i can get more output and a botom around 40 Hz. The horn was originaly designed for the LAB12. It looks like the punisher, same folding.
And, i have been working on a double 10" 40 Hz horn for PA use. Here you can find the first drawing:
http://groups.msn.com/_Secure/0SgD9Aj4Wkzwizp0amyMa!XUghqY9g O17UHA!qZbf5w2k1Ygmc192zzglm8PwFffZznGZEx9BHOCqJQOgvc*PCxirn GuixkezbNMOXMvpDEnIpJoEjys9PA/schets%2002.JPG?dc=46755098774 07877118
I only have a simulation of a single box on the net:
http://groups.msn.com/_Secure/0UwA0A!kXdcJ1depvoeenaRB0qpJke P!oDwksNfMH4uo0fpz8NzzlcZWlX32YpHzbXe1rwhmljL29Y*xHaxRjjuAuH 1!5kCfnszH619V8MP17SewI4Ggy1va7tOyXzoMf/HLA%20BR%20vs%20HORN .JPG?dc=4675511920502531104
I designed this cab to use in a stack of 4. The dip won't be there if you use 4 cabs. the f3 of a stack of 4 is around 40 Hz. In the simulation the drivers can take up to 1000 watt each without reaching the xmax.
Max spl @ 1000 watt per driver (8000 total) in a stack of 4 is 144 dB @ one meter.
Dimensions are almost simular to the Mach Ballister, wich i think is a nice format.
Both designs are not the final designs, they need a bit of tuning before the preformance is optimal. If you are intrested i'm willing to work something out. You can contact me via email.