Koss CM-1020 loudspeakers

Utilizing the Koss Theory of loudspeaker design and its computerized program, Koss engineers set out to design the optimum 3 bandpass loudspeaker. The result is a system that stands alone in delivering a high energy broadband response, a low distortion product, and a high efficiency level. The CM/1020 utilizes a dual port design to achieve proper cabinet tuning and greater structural stability. The specially-designed 10-inch woofer provides both a 3 dB gain in electrical efficiency as well as a flat response over the low bandpass. The 4½ inch midrange driver and 1-inch dome tweeter capture all the realism of your music without distortion. And to unite all these outstanding elements, Koss utilizes a unique, seamless crossover network. But no description can match the thrill of hearing the CM/1020 in a live demonstration.

Specifications

Bandpass Response (to typify the normal listening room situation):

Low Frequency ;  3 dB down point 31 Hz

High Frequency :  3 dB down point 18,5 kHz

Overall System Response :  6 dB down point 27,5 Hz to 19 kHz

Polar Response:  -3 dB (at 8 kHz);  -6 dB (at 10 kHz)

Intermodulation Distortion Products:  less than 1,5%

Reference Sensitivity:  93 dB SPL

Recommended Amplified Power Rating (8 ohm):  15 watts/channel (minimum); 150 watts/channel (maximum)

Impedance:  5 Ω (nominal), 4 Ω (minimum)

Input Power Overload Protection:  Fused 3 AG 2½ A

Dimensions (W x D x H):  15-1/2" x 13-3/4" x 33"

Weight:  60 lbs