Earthquake IMAGE 8 8 Inch - 2 WAY IN-WALL ,1 Inch Swivel Tweeters, PUSH ON TERMINALS, +/- 3DB XOVER - PRICE PER PAIR On sale now for $308 .Earthquake Sound is a Manufacturer of home audio and car audio such as power amplifiers, subwoofers, in-wall and ceiling loudspeakers and home theater loudspeakers systems.