Thanks for that link. I have the LCDXC and it's basically an LCDX with cups on it. I wondered if I could just slap the cups on my LCD2C and be done. I haven't heard the LCD2 closed but if they implemented that kind of filter, they must be better tuned than the LCDXC, which is a total mess compared to LCDX (no bass, harsh/painful tremble, unusable for me).