Which I definitely do. I completely upgraded every part of the crossovers in my Klipsch RF-3 II system, the difference is absolutely night and day. Rebuilding crossovers with better parts, from somewhere like Parts Express, really makes a huge difference. The improvement I noticed with the RF-3 II's cannot be overstated, crossover component quality really matters. That's actually my only issue with Klipsch speakers, well, I'd also like a little better internal bracing.