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Subwoofer Common Malfunctions

Subwoofer Common malfunctions

Subwoofer common troubleshooting

(1) subwoofer left and right channel volume is not the same

Troubleshooting: first check the host balance button is in the middle position, and then check the front input and output LEVEL control button is the same, and the amplifier input sensitivity left and right channel settings are the same, if still can not be ruled out, the host signal line Left and right swap, observe the speaker side of the smaller volume will not become larger, if it will, that the host has a problem, otherwise the latter part of the problem.

(2) a channel treble silent

Troubleshooting: first check the crossover wiring is connected, and then use the meter from the crossover terminal to measure whether there is no sound, it may be wrong to connect the speaker line input to the bass output.

(3) noise

Troubleshooting: Check the RCA signal terminal is connected to the negative, if the host side of the RCA signal output terminal has been broken, the meter can be used to measure the negative pole and the host chassis is connected.

(4) when the volume is small

Troubleshooting: first check the power supply cable and body shell contact is loose, and then check the front and rear input and output RCA is normal, and finally see if the sensitivity knob is normal.

 What are the common configuration of the subwoofer?

(1) host +4 speaker

   The purpose of this configuration is to increase the power of the built-in power amplifier. Due to the limitations of the host space, built-in amplifier can not achieve the effect of external amplifier strong and high-definition analysis


(2) host + power amplifier +4 speaker

   This is a set of standard collocation. The most suitable for appreciation of traditional music, pop songs and symphony in the high-end configuration.

(3) host + power amplifier +4 speaker + subwoofer

   Some 4-channel power amplifiers have a non-attenuating front-end output, making the system expand the subwoofer is easy. The system with subwoofer is best suited for jazz, rock and roll, heavy metal sounds

The requirements of music. In the mid-grade models, in order to achieve the improvement of subwoofer bass part of the purpose of sound pressure level, you can also use this match.