My most "recent" memorable component ... Marchand XM126 Crossover. I have been biamping my rig since forever and have heard many times that you need an external crossover to fully realize the potential of biamping. Never got around to check that out. Then one day, I was browsing the 'Gon and saw an XM126 for sale. I thought what the heck, if it doesn't work out, I can always sell it ... It made such a huge improvement on my system I am still recovering from the shock ...