You are a difficult loudspeaker customer. You know exactly what you want. And you've checked them all. Seen some beauties (they didn't sound that good). Heard some beauties (they didn't look that good). Some looked and sounded good (they were very expensive-and would they last?). What you need are beauties (looks, sound and price) that are beasts (power handling, efficiency and durability). At last. You've found them.
Introducing the Jennings Research line-all beauties and beasts. From the left: Contrara P, Contrara Elan, Contrara R, Vector Two, Vector One. Beautiful looks. Beautiful sound. And a beautiful price. Beastly efficiency. Beastly power handling. And beastly durability.
It took dedication, perseverance and the experience of three renown loudspeaker veterans to create this perfect marriage of beauty and beast (one was a designer, one an engineer and one a craftsman). Together they proved that technology didn't have to be ugly. And that products that were both beauties and beasts could be built at an affordable price.
At Jennings Research we put a lot of beast in all our beauties. As we continue our search for technological perfection we create some of our own innovations. Here are a few.
LPC (Linear Phase Coherent)
The process of aligning the emitted sound of all the reproducers in the same plane is Linear Phase Coherent engineering. The result gives the listener voices with unparalleled clarity and the localization of musical instruments in sonic space.
Most important, the listener hears sound phased in "real time," as originally performed -- not with the highs reaching his ears before the lows do (as it’s with loudspeakers that have a typical component array). See the Illustration. Both LPC and IAF are used in Jennings Research Vector Series and the Contrara Elan.
Cabinet High Frequency Reproducer Low Frequency Reproducer Voice Coils Typical Component Array Linear Phase Coherent IAF (Integrated Acoustic Foam)
One of the recent innovations in Jennings Research engineering is the use of Acoustic Foam as a part of the cabinet enclosure.
The foam which surrounds both high and mid-frequency reproducers controls random reflections and absorbs spurious sound. Since IAF becomes a part of the cabinet, it does not hinder the acoustical/mechanical operation of the reproducers.
IAF has made possible the simplification of crossover electronics and the solution of the phase problem created in Linear Phase Coherent engineering. Other manufacturers have attempted to rectify this with excessive circuitry and marginally operational additional drivers.
Passive Low Frequency Accentuator
All the models in the Jennings Research Vector Series make use of a rear mounted passive low frequency accentuator which moves in phase with the low frequency reproducer and "shares the load." The result is Increased power handling capacity and increased bass clarity. Bass response is extended without the accompanying volume loss found in vented box loudspeakers. The accentuator is mass loaded with a precision steel weight.
JENNINGS RESEARCH INC. 1115 E. 63rd St., Los Angeles, California 90001 USA
In Canada: Audio Dimensions, Ontario Copyright 1977; Jennings Research Inc
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(High Fidelity, Feb 1977)
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