"The Magnet is huge. It appears to be the soft, rubbery material that refrigerator magnets are made of rather than hard ceramic. I could be wrong about this, but I can make a finger nail impression on the face of the magnet extending beyond the back plate. My question about this driver: With a magnet so heavy, why is the BL so low and the Qts so high?"It is probably a cheap inefficient magnet, this is what may give the price advantage. If they used a magnet like Fostex, then the price would have been like Fostex. If the price was the same as Fostex, there would be no motivation to buy an unknown pair of Audio Note drivers instead of a proven product. Most DIYers are cheap and price often wins over quality.