DB Drive A7PRO 2.5K User Manual Download

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8 ~ 2 ohms

CLASS D MONO AMPLIFIERS’ SPEAKER CONNECTION DIAGRAM 2

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4. TROUBLE SHOOTING

NO SOUND ( NO OUTPUT )

1) Please check all connections, cables’ routing, short and voltage at amplifier and headunit.

2) Please check built-in or external fuses, If it is brown, please repalce with new one.

3) Please check whether speakers work well, you can test speakers by connecting to another amplifiers.

PROTECTION

1) Please check overload, overheat ( thermal ) , short, voltage and DC offset.

2) Minimum working impedance for 1 ohm

3) If the amplifier is shut down due to overheat, Reset by turning off the remote input and allowing time to

cool down.
Please make sure there are no airflow obstructions around amplifier to prevent thermal protection.

WHINING NOISE

1) Engine noise is caused by poor grounding of amplifier, headunit, other components, battery or

alternator, so please check all grounding connections.

Summary of Contents for A7PRO 2.5K

Page 1: ...www dbdrive net DUE TO CONTINUOUS IMPROVEMENT OF THE PRODUCT THE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE...

Page 2: ...le ampli ers POWER PROTECTION INDICATOR Power LED Green lit shows normal operation Protect LED RED lit shows general malfunction faulty connection or thermal protection Load 4ohm 2ohm 1ohm Voltage THD...

Page 3: ...r amplifier or making any connections Check the battery and alternator ground connections Make sure they are properly connected and free of corrosion before selecting a mounting location Please take s...

Page 4: ...2V output 3 4 SPEAKER CONNECTION DB Drive recommends to use minimum 12 gauge speaker connecting cables Run 12 gauge speaker connecting cables from your speakers to amplifier s mounting location Keep s...

Page 5: ...can test speakers by connecting to another amplifiers PROTECTION 1 Please check overload overheat thermal short voltage and DC offset 2 Minimum working impedance for 1 ohm 3 If the amplifier is shut...

Page 6: ...P...