Question about Behringer Bx4500h Ultrabass 450w Bass Amplifier
How do i fix it
If the hum exists with NO input cable plugged in, this requires repair, most likely in a shop familiar with the unit.
The problem may be in the unit's power supply or a broken connection inside.
This problem can also happen if one of the oputput amp transistors shorts driving out DC current into the speaker which is a grave risk to the speaker. Check the DC out of the speaker connector. If it is NOT very near zero, say less than 0.1 volts DC, do NOT copnnect speakers..
Posted on Jul 31, 2010
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Posted on Jan 02, 2017
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