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Original Message

Re: Yep.

Posted by Paul Eizik on May 14, 2003 at 20:42:30:
Hi Michaelz
Harry's double loader crosses just under 300 Hz. I don't have Dinsdale's articles handy but his designs seemed largely a suggestion, and he did'nt offer any measurements. Mine cross in the under 200 Hz range depending on how the various drivers and factors are set up, and I feel that the optimum crossover of the bass and mid bas should be around 100 Hz or lower.
Applying this type of design to a Lowther is tempting, but if you open up the "choked" mouth of the average Lowther rear horn, the rear output will over power the direct radiator front, necessitating a horn on the front of the driver, and even in spite of the rising high frequency response there will be some high frequency attenuation. From this follows a tweeter and a crossover, which somewhat defeats the elegant simplicity of the 1 way Lowther configuration with no crossovers to worry about. Some complain about the lack of highs on a Lowther, but I am always amazed at the amount of highs one driver can generate. On the bottom end, the latest inductor gimmick provides plenty of bass even with low powered SET's, but an inductor is a crossover. Perhaps the Lowthers are heading in the direction of a 2 way, but something may be lost in the process: simplicity.
Paul