Altec Lansing Hong Kong

	No sound from one or more speakers.
	Crackling sound from speakers.
	Sound is distorted.
	Radio interference.
	No sound from subwoofer.
	Low hum from subwoofer.
	Loud hum from subwoofer.
	Not enough bass from subwoofer.
	Too much bass from subwoofer.
	Distorted monitor/TV.
	I still have question which is not listed above.