For sale: my last pair of custom-made "open baffle" super tweeters for full range single-driver or high-e systems, NOS alnico paper cone drivers offer very smooth, detailed sound quality. 8 ohm, 97db sensitivity. Front baffles utilize unique lacquered exotic purpleheart wood, sides are transparent cobalt blue plexiglas, with thick clear acrylic bases. measures 8"h x 8"w x 6"d. Tweeters have built in 1st order crossover at 10k by means of a single high quality pio cap. Keep in mind if using tube ampification, that with my internal first-order crossover of tweeter, your tube amp will only "see" the impedance of your main speakers, the super tweeters will not change the impedance of you system. These are very fine super-tweeters that can smoothly accent any full range or high-e system, as well as improve the looks of you system with this one of a kind unique design. $175/pair. as per normal, no paypal please. Please email with any questions.