Oliver "Oliviah" C.
January 20, 2021
There are eight speakers powered by 550 watts that comprise the infinity audio system in your 2011 kia optima. there's a4 inch midrange in the center of your dash, a two-way speaker that has a 1/2 inch tweeter and a4-inch midrange in each corner of the dash, and then there's a6-inch midrange in each of the front doors. there's another two-way which includes a 1/2-inch tweet and 6-inch mid range in each rear door, and finally there's an 8-inch dual-voice-coil subwoofer in the center of the rear deck.
Ray M.
April 10, 2020
The 2012 kia optima speaker size is 3-1/2" for the front door, and 6-3/4" for the rear door, with the sides having subs.