JBL SP6 6.5" In-Wall Speakers (Discontinued by Manufacturer) High-quality in-wall 2-way speaker 6.5-inch titanium-laminate cone woofer 1-inch titanium-laminate dome tweeter with EOS wave guide and swivel mount 38 to 20,000 Hz frequency response for rich, full-bodied sound; features integrated dog-ear brackets for retrofit applications Measures 7.1 x 9.7 x 3.9 inches (W x H x D) each, mounting cutout size and depth