Posted by spkrman57 [ 24.33.234.32 ] on October 06, 2005 at 18:15:30:
In Reply to: Re: ** Pi chart request ** posted by Wayne Parham on October 06, 2005 at 17:45:40:
Looks like the Delta 10 has the best efficiency. I have that driver and Bill Epstein assembled my horns(after I screwed it up) and will give it a shot.
I am going to try a lame experiment and see if a JBL 2242 will reach up to 200hz - 300hz to meet the horn used with subwoofer plate amp with 40hz - 160hz variable crossover internally.
Since 160hz to 320hz would be just one octave, should be interesting to see what doesn't make it as my room is small and everything loads quickly in my system. Bass and mids have no problem and usually have to be padded more than most folks would use.
I am curious on what the impedance curve looks like if you use a 18" and 10" both being 8 ohms makes the total system look more like a 4 ohm at the bottom octaves, does it not?
Ron mad backyard audio scientist!!! LOL!
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