I recommend to start off with the Super Bass factory preset EQ setting. You can see it here: kzbin.info/www/bejne/p5-qd4GmhcanY7s If you want to add more bass, I recommend to start with Super Bass and adjust the 50Hz, 80Hz and 125Hz settings to your liking. You can see it here: kzbin.info/www/bejne/p5-qd4GmhcanY7s You can find more videos about Pioneer DEH-X6900BT here: kzbin.info/www/bejne/i2q1ZnSulJKhjKs Please be sure to install the latest firmware update for the Pioneer DEH-X6900BT. You can find it here: www.pioneerelectronics.com/PUSA/Car/CD-Receivers/DEH-X6900BT#downloads and you can find more videos on Pioneer's You Tube Channel here: kzbin.info