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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo's Axioms: Horn-loaded acoustic systems
Post Subject: The low-passing S2 driver.Posted by Romy the Cat on: 4/4/2008
 jessie.dazzle wrote: |
| I have not heard any other systems using Vitavox S2 drivers, but I know it is possible to get the S2 to generate on-axis unpleasentries. In the case of the system I am building, one can happily sit straight in the firing axis of any of the horns without experiencing the above-mentioned unpleasantries... No cringing. The reason for this I believe is directly related to the fact that I'm not asking each horn to cover such a wide frequency range. In other words, there is a lot of "horn margin" on either side of the frequency range being produced... Which probably looks like a high percentage of wasted horn to some. |
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Hm… it is would be debatable. S2 on-axis might be brutal, particularly with originals metal cones and one of the ways to deal with the brutal is using various low-pass filters or transient filters. Turning the horn slightly off-axis, using deeper horns and some other methods are low-pass filters. Loading the out tube harder probably is the most effective transient filter. The S2 is very much sensitive to quality of electricity. Since you are at 12 feet, sine you use the 16R tap on ML2.0 I think you might go away with on-axis shooting. I personally prefer to load the ML2’s output tube slightly idler (8R top) and to turn point the horns to my shoulders instead of my ears.
Interning that right now another guy that I know juts finish building his multi-way installation with S2 driver and upperbass horn. It took for him a year and he feels that the efforts were justified. He drives the S2 with 3uF cap and he looks like low-passing the S2 by turning. Anyhow, turning the horn is more to do with imaging of the whole installation then with balancing of the S2 driver. With S2 is a very lucky case as the bester imaging for the system AND the best low-pass roll-off might be at the same angle.
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