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Johnny HigginsJul 26, 2025
What to do if JBL BASSPRO Subwoofer output gets louder when the head-unit balance is adjusted to L or R?
- JJordan WilkersonJul 26, 2025
If the JBL Subwoofer output gets louder when the head-unit balance is adjusted to L or R, and you are using a speaker-level connection, it is likely that one of the speaker connections is reversed (+/–). Reverse one channel to correct this.