Twin 6” Kevlar Neo Magnet Woofers and Neo3PDR Planar Ribbon Tweeter. Tweeter rotates for vertical or horizontal use. 50Hz – 25kHz, 90dB, 4Ohms, 150WRMS. 19.75” x 8.56” x 3.75”. 5.4 lbs. The most versatile and powerfully dynamic model in the line, the PD-6LCRi is a true left, center & right channel in-wall speaker that can be mounted either as a horizontal center channel or vertical left, center or right channel. BG Radia’s award-winning planar Ribbon Tweeters deliver wide dispersion, balanced coverage, and an extra wide “sweet spot”. Superb performance with superb imaging and accuracy. Powerful, audiophile-quality Kevlar woofers. Rugged, reinforced frame and rust-resistant metal grills. Recommend using recycled denim (available online from Lowes or Home Depot) as a medium density wall-filling to significantly enhance speaker performance.