yes but not on my tablet... i think i got it from that Swedish site... is it hibernianlink ...the truth is there is no hf except sufficient to include all 78rpm potential... but if these are The studio. monitors then it would be tape i expect thru QuadsMaybe just try supertweeters if they are allegedly full-range, i.e. crossover quite quiet and high-up just to add a little air and sparkle. Do you have a spec sheet for them?