Rip It Up

Rip It Up

Jun 19, 2015
His screams, rapid fire delivery, and end-of-line trills in tracks like “Lucille,” “Jenny Jenny” and of course, “Tutti Frutti,” every one recorded with an overloaded microphone, are impassioned in the extreme.

KEF Reference Series 103/4 loudspeaker

KEF Reference Series 103/4 loudspeaker

Jun 18, 2015 First Published:Jun 01, 1992
By now most readers will be familiar with the relatively new tuned-cavity method of low-frequency loading. Such designs have popped up all over the place of late, especially in those little satellite/woofer systems, but KEF can rightly lay claim to generating the design's theoretical basis, as JA described in his review of the KEF R107/2 loudspeaker in Vol.14 No.5 (May 1991). Essentially, the technique consists of loading the rear of a woofer in a conventional fashion—usually a sealed box—but also loading the front of the driver into another enclosure, ducted to the outside. Basically, the design acts as a bandpass filter with its response centered on the port-tuning frequency. The rolloff is smooth and rapid on either side of this frequency, providing a natural low-pass characteristic but thereby virtually mandating a three-way system. If properly designed, this configuration offers a number of theoretical advantages. The radiating element is actually the air in the port, which is low in mass. Low distortion is possible, as is relatively high sensitivity.

LAST Record-Preservation Treatment

LAST Record-Preservation Treatment

Jun 18, 2015 First Published:May 01, 1982
LAST (Liquid Archival Sound Treatment) is a record treatment developed by one Dr. Catalano, which promises to retard dramatically the wear of vinyl discs. I don't feel that the advent of true digital discs will diminish the importance of LAST; on the contrary, as this century comes to a close many stereo records will be in their 30s and 40s and in need of as much preservation as possible, if the sounds and performances we treasure are to be preserved.

Katz's Corner: The Great Headphone Shootout. Part 5: The Revisions

Katz's Corner: The Great Headphone Shootout. Part 5: The Revisions

Jun 17, 2015
This story originally appeared at InnerFidelity.com

I've seen some reports that the Stax 007 MkII (the "Omegas") sound a bit bassy and dull, but I don't have that reaction with the KGSS amp and a superior DAC. My precious Stax is clearly missing something in the bass department and I wanted to see if I could transfuse the slam of the Audeze into the Stax and have the best of both worlds.

A Plague Upon Our House

A Plague Upon Our House

Jun 16, 2015 First Published:Aug 01, 1975
The summer of 1975 will be remembered by us, with no fondness whatsoever, as The Time the Roof Fell In. Or the Murphy Months, or the Period of the Plague Upon Our House.

Ye Editor can recall from the days of WWII hearing and reading about the depredations of some mischievous sprites called Gremlins, who would cause aircraft hatchcovers to jam and control cables to get hung up at the worst possible moment, but I don't think I ever really did believe in Gremlins. I think I sensed somehow that the mishaps attributed to their malevolent machinations were too capricious to be the work of thinking, calculating little spirits. But I was not clever enough to put my finger on what was going on. That had to wait for a gentleman named something-or-other Murphy, who was (to my knowledge) the first person to put a tag on it, and to formulate a basic law about it. The tag was "the perversity of inanimate objects," and the law was "If anything can possibly go wrong, it will."

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