So I came across a real nice pair of 2470's (phenolic diaphragms) on Ebay. I was going to put some titanium diaphrams in them and compare them to the LE85 diaphrams (Original D16R2420). But my curiosity got the best of me so I decided to put them in my L300s and see how they sound. To my surprise, they sound better than the LE85s. Much warmer and smoother. I'll do more critical listening this weekend, but those LE85s may not be going back in. Has anyone else did that particular swap, i'll be interested in knowing your thoughts.