2-way bass reflex bookshelf loudspeaker One 6-1/2" W cone mid-bass 1/4 coil, 4" magnet One 1" Tioxid inverted dome tweeter, 3/4" coil, two 2-3/8" magnets low end extention 45Hz (-6db) Response ~ 50Hz - 23kHz (+/- 3db) Sensitivity 90dB 8 ohms impedance Two pairs of gold plated binding posts .
Any 20 watts or more amps will drive this speaker at no problem..I have the JM LAbs 905 driven with a 65 watts monoblocks amp at no ease.The result is very satisfactory.I hope this will help you.