Hello. Need some tech help please. I have a pair of JBL LE15A woofers which one of needed a recone. I took the opportunity to have both reconed to 16 ohms for use with tube amps. My question regards the crossover. It is the JBL LX13. Will I need to modify these to work with the newly 16ohm driver? The HF is a 16 ohm 806A/811. Or, is there another crossover I should look for. Thanks for your help.