I-Tech 4X3500HD BCA Engine Failures When Amplifier Is Initially Turned On

Table of Contents

Brand: Affected Products: Summary: Troubleshooting:

Brand:

Crown

Affected Products:

I-Tech 4x3500HDB
I-Tech 4x3500HDS

Summary:

4x3500HD BCA Engines may fail unexpectedly when initially turned on, especially if the output is shorted or otherwise stressed. All four channels may show a fault or clip warning. These failures were noted in the field starting in mid 2025.

Troubleshooting:

Please contact your dealer, distributor or HARMAN Tech Support to confirm the failure, and for service options. See https://help.harmanpro.com/support for contact info.
If the BCA Engines have failed, they will need to be replaced under normal service procedures.