PRV Audio 6MR500-NDY-4 Neodymium 6.5" Mid Range 4 ohms Pro Audio Speaker 96dB 250 Watts RMS 2" VC The 6MR500-NDY-4 offers outstanding durability and a smooth full range response through 12,500kHz. This woofer is perfect for home Hi-Fi installs, including bookshelf, satellite, surround sound speakers and even the home studio monitors. It is a great option for three way cabinets requiring additional midrange support. The high end neodymium magnet assembly was chosen to increase sensitivity and power handling. Its light weight of only 3.3 lbs helps keep your enclosures light and is a great use for car audio installers looking for high SPL midrange and upper midrange responses.