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TROUBLESHOOTING (continued):

BUZZING SOUND

• Check the amplifier and headunit ground connections.

• Check RCA cable connections and possibly replace RCA cables with better

noise shielded cable or reroute RCA cables away from power cables.

WHINING NOISE

• Engine noise can be caused by poor grounding of amplifiers, headunits,

signal processors, battery or alternator. If you can remove the signal cables

from the amplifier and the noise goes away the sound is not being generated

by your amplifier, but by an external grounding issue.

If you have any questions regarding setup, installation or warranty please contact

the DD Audio technical support team by email at [email protected] or by

phone at (405) 239-2800.

DD AUDIO / CLASS D MONOBLOCK AMPLIFIER /