The Pioneer a-series TS-A1670F 3 Way, 6-1/2 in. Speaker system is an excellent choice to greatly improve sound quality and the audio experience for 6-1/2 in. Shallow depth factory speaker locations in your vehicle. These Pioneer car speakers are custom-fit to replace original factory speakers to provide drop-in replacement installation with improved acoustic performance. These car speakers also feature Pioneer Open & smooth sound concept which provides a seamless and smooth transition between the woofer and midrange tweeter drivers to deliver uniform, off-axis Frequency response that is optimized for automotive applications where one or more speakers are often aimed away from the listeners’ Ears. The TS-A1670F speakers also feature visually appealing, partially meshed grills and multi-fit installation brackets.