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In the Forum: Horn-Loaded Speakers
In the Thread: Another time aligned 5-way horn project
Post Subject: 500-1200Hz rangePosted by Romy the Cat on: 9/14/2015
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 Murataltuev wrote:
So, driver for 1200hz down is under consideration.I'm going to try 2453, 2451, 2490 and Supravox 12" for this range.I've ordered 200hz LeCleach from AutoTech with 6" throat to try 12" Supravox for the 300-1200hz range.And compare with JBL 2490 in its own JBL horn.I'll share my impressions soon...

Well, it is for sure possible to order zillion drivers and horns and try for 500-1200Hz range, or that I call Fundamental Channel. As the person who did it I would like to pass some recommendations. Do not do anything with what I call Fundamental Channel until you do not have properly setup and calibrated your upperbass and MF. With your upperbass and MF you should be able to get perfectly agreeable sound and the Fundamentals shall juts add some icing on the case making the sound slightly richer, slower and kind of “unpleasantly midrangy”. The Fundamentals is in a way a mad that juts fill the gaps and make the whole sound presentation a bit more monumental and solid. The Fundamentals should not be showing off and in way shall sound quite ugly in isolation. So, it is not that you shall find the “best Fundamental” but rather you need to find the best complement to your current upperbass and MF.  
 
I would not go for a recommendation of a driver but whoever driver you chose I would very much encourage you to idle it as much as you can. You for sure will have partials with any amp you use to drive it a lot of excessive power, so burn any excessive power in the loading and let the output tube to run as relax and possible, practically do not let it to “see” the load. As you will go deeper and more aggressive into it the driver’s cone will be sort of “transients ringing” for a full range but in context of 500-1200Hz range it will be sonically reasonable, at least at my view. Try it and you might discover that you might eventually prefer not “belter driver” but rather the driver that has more ringing. Read my thread about the “Resonating Oops” witch is context of a single lower MF octave might be very beneficial. Get yourself as good recording of let say Dvorak 8 or 9 and idle the Fundamentals until your ears experience their little intellectual orgasm.

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