Super-tweeter, super-image, super-sound [message #48731] |
Sat, 28 January 2006 18:52 |
Bill Epstein
Messages: 1088 Registered: May 2009 Location: Smoky Mts. USA
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Illuminati (2nd Degree) |
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I'm sure Bowers and Wilkinson can feel my hot breath on their neck with my design: I call it "NAUTILUS Pi" By combining the tweeter baffle with the crossover I can swap resistors and caps with 'gator clips to find the best combination right at the source. Right now I'm digging 16 ohms across and 4.3 uF. That could change tomorrow
What won't change is the heretofore unheard with horns imaging I'm getting with this mount.
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Thanks For The Idea [message #48765 is a reply to message #48731] |
Tue, 31 January 2006 15:39 |
FredT
Messages: 704 Registered: May 2009
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Illuminati (1st Degree) |
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Thanks for the idea. I tried it with two tweeters I had on the shelf, a cheap dome and a better quality ribbon. The cheap dome is a $14, 96dB, MCM #53-325 titanium dome. That's the one used in the Bottlehead Straight 8. It has a nasty peak at 3khz, but for this purpose I crossed it over above 10khz, 2nd order, using a 1uF cap with a 0.15mH shunt inductor. Not bad - it adds back just a touch of sizzle I'm accustomed to hearing with domes that aren't horn loaded, but not enough to cause excess siblance or to make the sound too tizzy. The ribbon is the $88, 95dB, Fountek 3.0. This one is really nice. It provides the sparkle I like to hear without a hint of tizz. A good test disk is Patricia Barber's Modern Cool. Early in track 8 there's a brush on a ride cymbal, first in the right channel then in the left - the supertweeter brings this out nicely without any apparent changes below about 10khz.
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Theater three π [message #48789 is a reply to message #48786] |
Fri, 03 February 2006 12:35 |
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Wayne Parham
Messages: 18783 Registered: January 2001
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Illuminati (33rd Degree) |
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Man, that looks great!I love what you did with your color scheme. Reminds me of Garland's two-tone wood finish on his Theater four π speakers. Nice touch adding the supertweeter, for a little more air in the top octave.
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