Do You Get Worse Performance if You Mix Car Speaker Brands?
All car speaker brands have been specially calibrated to work in sets. That means you have to install the same set in your car. It’s also very essential that you use the same brand sets inside your car to get the best effects. Mixing brands and types of car speaker brands will cause a distortion in the sounds inside your car. This is because there are different types of car speakers like subwoofers, coaxial speakers, midrange and component speakers. The tonal balance of the speakers and the sound quality all get affected when you mix speakers. Try to get matched sets, as you will get high quality sound.
For more info, see The Best 6x9 Car Speakers You Can Buy