Momchil

Yeah, I also thought about it. But on the other hand I would like to fit in a much tighter budget. Currently the caps and the resistors would cost me about 20 euros + shipping ...

Hey guys, I hope you are all well. I just want to bump the conversation, because I just bought a pair of RP-160m and would like to upgrade their crossovers. I have studied electronics at high school like 20 years ago, but unfortunately there is not much left in my head and therefore I will appreciate some help with the following: #Objective: I would like to keep the original crossover design of the 160s and replace some of the components to improve the sound quality while following the Pareto principle. #What I will likely do: - Replace the 9 ohm stock resistor with a Jantzen MOX 9R1 10W or Mills 9R1 12W (both have 5% tolerance which I would assume will be within the designed tolerance) - Replace the 3.9 uF stock caps in the tweeter circuit with matching Jantzen Standard Z-Cap - Add 0,43uF Jantzen Cross Caps in parallel to the driver circuit stock capacitor (should result in less than 1% change in capacitance, I would assume the stock electrolytic caps would be with much higher tolerance) #What I would also like to do: - Substitute the 1.4mH iron-core inductor in the driver circuit with an air-core one #What help do I need: - Feedback on replacing the stock 9 ohm resistors with 9.1 ohm resistors - would that cause any trouble? - Feedback on adding higher quality capacitor in parallel to the electrolytic one in the driver circuit - is it going to improve sound quality given the frequency of operation (up to 1.5KHz)? - Has anyone measured the resistance of the 1.4mH inductor in the driver circuit and what would be the impact on the crossover performance if I swap it for air-core with the same inductance value but slightly different resistance? Have a great week everyone! Cheers, Momchil