Kicker 48CWRT674 CompRT 6.75" Subwoofer, DVC, 4-ohm

Fit and Finish was great, The sound was perfect and better than expected. Great upgrade over stock and no mods necessary.

Very distorted rattly sound, half volume from the factory stereo was too much

Our 2023 Bronco had the infamous subwoofer and amplifier delete which Ford started implementing in late Dec 2022 (if you have the "AM/FM,6 SPKRS,SDARS - 250.00" entry on your window sticker you have this delete). Purchasing/installing a late model Ford Fusion amplifier (FP5T-18C808-AB) and the 48CWRT674 6.75" 4 ohm Kicker subwoofer is an excellent, relatively low-cost way to correct the sonic impact of this delete. The Fusion amp mounts and connects to the existing OEM subwoofer housing and connectors perfectly. However, you must activate the Fusion amp via 727-01-01 (change xxxx x4xx xxxx to xxxx x6xx xxxx) in the ACM (Audio Control Module) using Forscan (2 mo. free trial) and your favorite OBDII interface before it will operate. The 6.75" Kicker fits the existing OEM subwoofer speaker opening almost perfectly. You will need to tap/drill holes into the OEM subwoofer housing to secure the speaker with 8 mounting screws/bolts of your choosing. Went with the 4 ohm Kicker (vs. 2 ohm) because a number of folks in the Bronco forums have commented the bass was tighter, cleaner with the 4 ohm. We were all-in for approx. $200. Big improvement in sound quality. Highly recommend this upgrade!

This bass speaker hits hard

Sounds fairly good, not a bad price. Not low end quality, but not high end either. Not going to shake the ground or anything, but adds really nice depth and allows the door speakers to focus on clear mid/treble. I recommend for those who just want a little more feel but dont want to annoy everyone else in traffic