Hey all, I've been an advocate of the Magnum X for a long time, but I had something of a revelation just now as I just finished building my old V4 drivers into Vibro Classic cups. I remember when I originally purchased the X drivers that I immediately noted some differences between them and the V4. Essentially, I tried the X and said "Even more clarity and more bass, hurray!" Once again, I've had the opportunity to visit this comparison. One thing that struck me after I listened to this newly completed V4 build is that holy crap, the mids on these are seductive. It's like listening to a high end record player, very sweet and analogue sounding but still detailed. The V4 has less bass than the X and the X is more clean and detailed sounding (especially in the aluminum shells) but man, the V4 is really, really good at what it does. Don't get me wrong, I still LOVE the X. In fact, I built the V4 back up in anticipation of selling them, but after listening them, the sound is so sexy and non-fatiguing that I don't know if I can bring myself to do it. By the way, I took these pics with the L-Cush pads, but the HD 414 pads absolutely crush them in sound, imo.
Here are some pics: