B2 Audio M 12 Manuale d'uso - Pagina 6

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5. TROUBLE SHOOTING TIPS

NO SOUND ( NO OUTPUT )

@ Pls check all connections, cable's rounting, short & voltage on the

and headunit.

@ Pls check fuses, if it is blown, pls replace with new ones.

@ Pls check whether speakers are functional. You can connect a AA battery to the speaker

terminals to see if there is any movement of the speaker cone.

PROTECTION

@ Pls check overload, overheat ( thermal ), short and voltage. DC offset

@ Minimum working impedance is 1 ohm for 2ch mode and 2 ohm for brigded operation.

@ If the amplifier shuts down due to overheat, it will start up again after

a short cooling period.

Please allow for better airflow and ensure there's no obstruction around the amplifier for

thermal protection.

M12

@ The

has Low and high voltage protection. Working Voltage is 9V~18V.

Voltage lower than 8.5V or higher than 18V will cause the amplifier to go into protect.

@ When over 4V DC comes into

Check whether

series amplifiers are functional, then check DC by checking RCA-input L and R

When DC is over 4V at input, try by replacing headunit or source unit

DISTORTION

@ Adjust the input level and check the quality of the speakers. Replace low quality speakers

with upgraded ones.

POOR BASS RESPONSE

@ Pls check speaker cables and reverse the polarity of one channel

BUZZING SOUND

@ Check the amplifier and the head unit ground and ensure it has a good clean connection

@ Check the Rca jack and replace it if faulty or try rerouting it.

WHINING NOISE

@ Engine noise is caused by poor grounding of

components, battery or alternator, so pls check all grounding connection.

series amplifiers, then they will be DC protected.

series amplifiers work after removing RCA-Input.

M12

The

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series amplifiers, headunit, other

M12