The Miniaturized 2 Speaker 2-Way System Criterion 20A

• alternative name: Wholesale Radio

A brilliant achievement in acoustic design, the Improved Criterion 20A is hardly bigger than a table radio, yet offers astonishing high fidelity reproduction. The rich, deep-down bass delivered by this miniature-sized system must be heard to be believed — compares with systems many times its size! Music reproduced through the Criterion 20A comes through with complete naturalness . . . gives you sound that is excitingly real — you get full, wide-range response, from the lowest frequencies all the way up to the limits of the audio range. Yet this remarkable speaker system measures only 5⅞x11¾x7⅛" deep and fits anywhere . . . on a bookshelf . . . table . . . even on a wall! And, it has the look of fine furniture — comes finished on all four sides in a rich, hand-rubbed oiled walnut veneer, tastefully framed in an ebony and gold picture-frame molding with white gold acoustic grille material.

The Criterion 20A is not an extension speaker but a miniaturized system specially developed to provide high quality reproduction with any fine mono or stereo component amplifier. Its amazing performance is made possible by the use of specially designed speakers. A powerful 5-inch woofer equipped with a large magnet structure and voice coil, provides high efficiency and power capability. Special cone suspension results in extremely high compliance and permits large cone excursions to provide efficient, solid bass all the way down to 45 cycles. A 6 db per octave L-C crossover network transfers power at 2800 cycles to a newly developed back loaded mid-range/high frequency unit which provides realistic "presence" and brilliant highs. Enclosure is rigidly constructed and filled (not just lined) with acoustic dampening material to assure freedom from resonances and provide smooth, uniform response. Power Rating: 20 watts program material. Frequency Response: 45 to 20,000 cps. Crossover Frequency: 2800 cps. Nominal Impedance: 8 ohms. Imported. 

Here you find 1897 models, 1755 with images and 425 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Lafayette Radio & TV Corp; New York (NY)