Sitting at the top of the 'fixed position' range is the RSF-64. The RSF-64 features the same 1" (2.54 cm) Teteron pivoting tweeter as the RSF-63, but features a high quality 6.5" (16.51 cm) Kevlar cone. The power handling is increased to 120 watts meaning that it can be driven by larger amplifiers, or used comfortably in home theatre applications with more demanding amplification that require adept handling. The RSF-64 has been designed for the best quality in-ceiling or in-wall musical reproduction, making sure that you don't miss a detail or the beat! Like all of the new series a magnetic square grill is available separately.