Just finished installing a Focal Bomba BP20 subwoofer in a 2019 Mercedes C-Class, and wow this setup is pure magic.
Paired with the ZXK10 wiring & the 23-005, the bass is now punchy, precise, and perfectly balanced for the cabin. No rattles. No distortion. Just clean, hard-hitting low end that you feel as much as you hear.
The BP20 slides right in without sacrificing trunk space, and the difference from stock is night and day. If you want OEM+ bass that actually performs, this is the move.
