3-Speaker 3-Way System Criterion 200

• alternative name: Wholesale Radio

The enclosure is a bass reflex design using a ducted port of the tube type which is proportioned to provide correct acoustic "tuning" of the enclosure. This arrangement provides a special path for the sound waves radiated from the rear of the woofer so that they emerge "in-step" with those radiated from the front of the woofer. This provides a substantially greater bass sound power from the system. Solid ¾" wood construction, internally braced, plus the liberal use of sound absorbent material, ensures an extremely rigid enclosure, free of undesirable resonances. A special 12" woofer with 1 lb magnet and a 2½" diameter voice coil covers the range from 25 to 700 cycles and employs a foam-treated cone for efficient, distortion-free bass reproduction. An 8" midrange speaker covers the 700 to 5000 cycle range and is of the closed back type to prevent interaction with the woofer. A 3" dome-type "Super" tweeter, also with closed back, provides coverage from 5000 cycles to 25,000 cps. All three speakers are acoustically matched and employ an L-C crossover network for crossover at 700 and 5000 cps.

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