RCF BD42 Passive Bi-Directional Wall / Ceiling Speaker, 70V / 4 Ohm | Full Compass Systems
Amazon.com: Pyle Ceiling and Wall Mount Speaker - 5.25” 2-Way 70V Audio Stereo Sound Subwoofer Sound with Dome Tweeter, 300 Watts, In-Wall & In-Ceiling Flush Design for Home Surround System - Pyle