Lot of 3 M&K Miller & Kreisel S-90 Satellite Speaker Black.Made in USA - $300 (san jose south)

Lot of 3 M&K Miller & Kreisel S-90 Satellite Speaker Black . Working, great sound. Excellent condition. MADE IN USA. Miller & Kreisel Sound Corporation is probably best known for its broad line of powered subwoofers, but M&K also makes a number of full-range loudspeakers. Among these is a group of satellite speakers designed primarily to be used with a separate subwoofer. The S-90 is in the middle of the M&K satellite-speaker line. It has a 6-1/2-inch woofer operating in a sealed enclosure and crossing over to a 1-inch soft-dome tweeter at 2 kHz. The S-90’s nominal impedance is 4 ohms, its rated sensitivity 90 dB, and its rated frequency response 72 Hz to 20 kHz ±2 dB. It is recommended for use with amplifiers rated between 50 and 200 watts per channel and is designed to withstand unclipped 200-watt peaks without damage. The S-90’s enclosure is as unconventional as its other design features. The sides are tapered toward the front, giving the user the options of using it either upright (aiming forward) or on its side (aiming slightly downward). Like most speakers, the S-90 should normally be installed at the ear level of a seated listener, but if that is not practical, it should at least be aimed at the listener’s ears. The cabinet, not much larger than the drivers and crossover components it contains, is handsomely finished in oak woodgrain on all external surfaces except the front panel, which is flat black and normally covered by a removable cloth grille. Several pieces of foam plastic are cemented to the front panel to control diffraction from the panel edges. The enclosure appears to be about as rigid as a concrete block, giving a “click” instead of the usual “thump” or “bong” when struck with the knuckles. The input connectors (five-way binding posts) are recessed into the rear of the cabinet. In the same section are two three-position miniature toggle switches, Midrange Contour and Treble Contour, that modify the speaker’s frequency response and sensitivity to suit individual requirements. The Normal settings of both switches, with the switch levers up, are designed to give the speaker its flattest response when it is located well away from the room boundaries. The bottom setting of the Midrange Contour switch, labeled Special, optimizes the response for installations where the speaker is against a wall or other room surface; it also gives the system its highest efficiency. The middle, or Low Efficiency setting, on the other hand, sacrifices efficiency and maximum output for a “warmer, mellower mid-bass sound,” as the installation manual puts it. The Treble Contour switch reduces the tweeter level in two steps when moved to its middle or bottom setting.