Hi,I have picked up a pair of 60s leak speakers 16ohm,both the bass speakers sound good but the tweeters have had it,my dilemma is crossover frequency is 900hz and finding tweeters to go this low is a major problem and 16 ohm is impossible so options could be two tweeters to give 16 ohms and play around with crossover or put a midrange in ,I'm not to worried about the changes as like the look of the cabinets and having a mid fitted wouldn't change much as grills cover everything,is there anyone out there who has done any mods like this before.