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ACI Titan V.S HSU-TN1225HO
Posted by Jeff VanDyne [IP: 205.242.228.75] on August 16, 1999 at 11:52:25 In Reply to: ACI Titan V.S HSU-TN1225HO posted by TV on August 12, 1999 at 03:10:36: TV, Well, we can end the anonymous source thing now, as I'm the person to whom John was refering. I haven't had the chance to read the entire thread so bear with me if I touch on something that's already been settled elsewhere. Also, let me state that I'm not here to "get in the middle" of anything, just to state what my POV was reguarding the Titan some months back when John and I were discussing it. I don't remember the entire conversation now and I purge my mail on a regular basis so I don't have anything to refer back to. Anyway, somehow we got on the subject of the Titan and I made the comment that I'd read the information concerning the design criteria Mike has posted on his website and was impressed. You see, I've never bought a subwoofer since everything I've auditioned in the sub $1,000 price range have all exhibited poor transient response characteristics. Since this is something I'm very sensitive to I've always felt that omitting the frequencies below 40hz was preferable to having what I would consider to be bad bass. The problem I have with most subwoofers I've heard is that they try to put too large a woofer into too small of a box, which means the overall system Q is generally way too high to produce decent transient response. After reviewing the material on Mike's website, it occured to me that he'd struck on a particularly clever way to get around this problem. By sizing the box to produce a system Q of roughly .7 in a sealed system he had a sub that should provide good transient response in a relatively small box. Of course, the drawback to this approach is that he has to use active EQ below about 40hz which further limits potential output (beyond the relatively small xmax of the driver). Of course, this is the trade off you get into with subwoofers. You can have high output in a small box but pay a penalty in transient response or good transients but pay the price in total output or overall system size. You can, of course, have both but not without dealing with a much larger sub and probably significantly higher cost in most cases. OK, so now that we're through that, what of the total output of the Titan? How big a factor is that going to be for most people? How many of us really listen at reference levels at home? Personally, I find 90db more than loud enough for my own tastes and suspect I'd be paid a visit by the boys (and girls) in blue if I started listening at the levels you've discussed. I just don't see this as all that big of an issue for many people. I suspect the Hsu is also a very good sub for its own set of criteria but that it just doesn't likely meet mine as well as the Titan does. Not to mention the fact that my wife would be more than a little unhappy with me if I dragged a large black "sock" into her family room... :) Jeff
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