Jbl Rma 220 User Manual -

If you are installing or operating the JBL RMA 220, do not skip these specific sections of the manual:

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Microphone not working:

Weak or distorted sound:

Buttons not responding:

If problems persist and the unit is under warranty, contact the retailer or JBL support with purchase details and serial number.

Most user complaints about the RMA 220 stem from misconfigured dip switches. Standard configuration for a 4-switch block: jbl rma 220 user manual

Warning: When using Bridge Mode, connect the speaker to the Channel 1 positive (+) and Channel 2 positive (+) terminals only. Never use the negative terminals.

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