JBL 4350 crossover upgrade -NEW (PAIR) (CROSSOVERS ONLY) (3107 network) read

This auction is for (2) Pair of new cross-overs for JBL brand speakers. Model 4350 (3107 network. It is built to the original schematic topology with some small improvements to the circuit and higher grade parts. Get more powerful better controlled bass, cleaner more dynamic midrange and higher resolution highs with a new level of detail from your JBL 4350 speaker system. Upgrade includes the following: *Install all new premium parts including the below….. *High grade Polypropylene Film capacitors. *Non inductive Film resistors. *Low distortion air-core inductors in midrange and tweeter section. *Low distortion, low DCR large AWG laminated steel inductors in the woofer section. *Piont to point component wiring with 99.99% pure ofc copper wire. Fully tested on lab analyzer comes with frequency response test sheets. Matched pairs to +/-0.5db max deviation. Available also many other JBL models, just email with request. 20+ years of experience in hi fidelity crossover design. Customer comments: “I put the crossovers in and I am stunned. I have had the L150’s since I purchased them new in 1980. They started irritating me awhile back. So I got these new crossovers. Wow. Again, wow. They sound like a new speaker. Well worth it.” J.M. another customer…….. “JBL L100 crossover upgrade. Results are in a word SUPERB. A+++” another customer…….. “Perfect!! Thanks again. Sounds great !!” (J.D.) another customer…….. “Excellent work. Seller helped me a lot and I appreciate that!” another customer…….. “What an amazing difference the crossovers make. The mids and highs actually sound transparent. Thank you” D.W another customer…….. “excellent,item as described great packing,improved sound detail,impressed!” (W.E.) another customer…….. “Fantastic crossovers, they make my JBL100’s sing. Thank you.” another customer…….. “After several hours of listening to various LP’s on my “retro system” Thorens TD124 w SME 2009 and Shure V15IV through my Pioneer A27, I concluded that the L100s had been transformed into JBL 4311 studio monitors ! The sound stage seemed wider and the sound was clear and clean throughout the frequency ranges. With the old crossovers I was getting a muddy mid range and boomy bass. Now the mid range in particular was much cleaner and and more detailed. Your crossover upgrade has been the best speaker investment I’ve ever made.” another customer…….. “Does nice work! Great upgrade to JBL L100” another customer…….. “Very very good result.” F.P. another customer…….. “ Installed them today…they sound spectacular. ” another customer…….. Stellar JBL L100 crossovers! beautiful workmanship another custom er…….. “My feedback is definitely positive! My good old JBL L100’s are singing perfectly” another custom er…….. “WOW! These are amazing. Among a long list of things that are wonderful the soundstage is absolutely phenomenal. Thank you.” (D.N.)