What to do if Bosch Speakers have crackling or distortion?
If your Bosch Speakers have intermittent output, such as crackling or distortion, check all connections at the amplifier and speakers to ensure they are clean and tight. If the problem persists, it may be in the amplifier or wiring.
What to do if my Bosch Speakers have no sound?
If your Bosch Speakers have no sound, and connecting a test speaker to the amplifier outputs produces no sound, ensure all electronics are on, the signal routing is correct, the source is active, and the volume is turned up. Correct, repair, or replace components as necessary. If the test speaker produces sound, the issue lies within the wiring. Also, ensure that the inputs and outputs are connected to the correct wires with proper polarity, as incorrect wiring of the subwoofer input panel can result in little to no sound.
Why do my Bosch LB20-PC60EW-5D have poor low-frequency response?
If your Bosch Speakers have poor low-frequency response, it might be due to the speakers being wired out-of-polarity, which causes low frequencies to cancel each other. Check the wire markings to ensure the amplifier's (+) terminal connects to the red speaker terminals and the amplifier's (-) terminal connects to the black speaker terminals. Also, using a test speaker, verify all amplifier and speaker wires are connected to their proper terminals with the correct polarity. Reversing just one set of amplifier wires can cut out all bass output from the subwoofer.
How to fix constant noise from Bosch LB20-PC60EW-5D Speakers?
If your Bosch Speakers produce a constant noise like buzzing, hissing, or humming, and no program material is playing, the issue likely resides in the signal chain of the electronics. Evaluate each component to isolate the problem. Also, check and correct the system grounding, as required, to eliminate potential ground loop issues.
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