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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: RE: 110dB/W HORN linear array with pictures posted by thetubeguy1954 on July 19, 2015 at 13:23:38:
This is my proprietary design where there are TWO 10 inch drivers each horn loaded into its own 54" length horn designed for a low corner of 75Hz. A curved reflector permits compacting this to a depth of 24" and still passes horn loaded freq up to close to 3KHz. The output of the two horns converge anteriorly to a 70" wide x 16" height mouth. In the middle between the two butt cheeks there is a proprietary designed diffraction horn which being about 12" long appropiately loads TWO high ouput 112dB/W compression drivers crossed over about 2.2KHz. That much HF output is necessary to keep up with the 2-10" horn loaded drivers!. This being a linear array design having cabs above and below puts the cabs in 1/2 boundary space. Using 4 cabs gives a mouth size of 70" X 64" and better than 116dB/W output. From a distance it acts as a point source and avoids the few criticisms made against line arrays yet it avoids the all in your face output as the output can be split and directed as needed as in a linear array. Although I designed this for linear array use I have found it very useful for a home system as just one cabinet can provide a stereo effect by hooking up Right and Left channels to the appropiate horn of the 10" driver and comp driver. As far as quality of sound it depends on the quality of drivers and amps but the benefits of horn loading are all there. It can make inexpensive drivers sound very good. And yes I have had all kinds of speakers including ribbons electrostatics and horns and all kinds of amps even tube SE 45, SE RCA 845 no power JFET yet.
With horn cabs the vertical exit angle of the MR horns being too much causes MR interference patterns when cabs are stacked as in linear arrays. In this design that has been avoided. Of course HF interference patterns is avoided by the design of the HF horn and it´s very small exit angles. The directionality of horns enable near field Low Freq control to be maintained using much shorter columns. You would need 64 direct radiation linear array cabs with typical output of 98dB/W to match 116dB/W. I am very happy with this 55 pound inexpensive compact cab. The JBL Vertec, L Acoustics require 2x15", 4x6", 3 comp drivers 350 lb cabs and thousands of dollars to do less.
Rafaro
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Follow Ups
- RE: 110dB/W HORN linear array with pictures - Rafaro 22:31:28 07/19/15 (1)
- RE: 110dB/W HORN linear array with pictures - thetubeguy1954 14:41:29 09/17/15 (0)
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