I have a pair that I purchased second hand about 10 yrs ago, I have greatly improved their performance by replacing the crossover capacitors and internal wiring, in fact the improvement was remarkable. Capacitance changes and leakage increases over time as the dialectric deteriorates effecting filter Q - the original design is sound, do not attempt to replace the ferite
cored inductors. We have a full electronic lab and were able to quantify results with before and after measurements - the results obtained will more than justify the expense and effort involved. Use only highest quality non polarised audio quality caps, non polarised electrolytics are definitely not in that category.
Good luck with the mods.
MJL
cored inductors. We have a full electronic lab and were able to quantify results with before and after measurements - the results obtained will more than justify the expense and effort involved. Use only highest quality non polarised audio quality caps, non polarised electrolytics are definitely not in that category.
Good luck with the mods.
MJL