Slot tweeter pair Mint new old stock RARE 105dB@1W@1M,6.5 -21.5kHz response,20 RMS watts continuous,31/4 lb Alnico magnet.Incredible detail,the ultimate in efficiency and imaging.Used in top-of -the -line JBL studio monitors.Act quickly!!This is a once in a lifetime opportunity to own a pair of these truly incredible tweeters in factory fresh condition.email me for more information.