Bose L1 Model II manual Svenska, Nederlands, Italiano, Problem, What to do

Svenska	Nederlands	Italiano	FrançaisSvenska	NederlandsEspañol	FrançaisDeutschItliano	DeutEspañolchDank	EnglishDansk
CARE AND MAINTENANCE
Problem		What to do
With nothing plugged into		• Using an AC outlet tester, test the AC outlet that the power stand is plugged into for
the power stand, a slight		reversed or open (hot, neutral, and/or ground) contacts.
hum or buzz is heard		• If using an extension cord, make sure that the cord is also tested as above.
B1 bass module is plugged		• Make sure you are using the included 4-wire B1 bass module cable.
in, but no bass audio is		• Make sure the B1 bass module cable is plugged into the Bass Module Out connector
heard		and the cable plug is fully engaged in the connector.

•Try a different 4-wire cable.

•If available, try a different B1 bass module.

B1 bass module sounds	• Make sure you are using the B1 bass module 4-wire cable included with the B1 bass
out of balance with the	module package.
system	• Make sure that the B1 bass module grille is facing forward toward the musicians and
	audience.
No mid/high sounds heard	• Make sure the L1 model II Cylindrical Radiator® loudspeaker top and bottom are firmly
from the L1TM model II	seated in their connectors.
Cylindrical Radiator®	• Make sure connections are not bent or broken.
loudspeaker	• Try cleaning the contacts on the loudspeaker top and bottom with electronic contact
	spray cleaner.
Instrument or audio source	• Make sure the Signal/Clip LED is not constantly red. If it is, lower the trim level.
sounds distorted	• Try a different source or instrument.
	• Try your source or instrument on another power stand.
Third-party-powered sub-	• Unplug any B1 bass modules that may be connected to the power stand.
woofer sounds poor when	• The signal from the Bass - Line Out may be too high for the powered subwoofer; try
connected to the Bass -	attenuating the signal using commercially available direct boxes or in-line pad devices.
Line Out connector on the	• Try different connections to the third-party-powered subwoofer, such as balanced or
power stand
	unbalanced cabling and/or a direct box.
	• Check that the gain and input controls on the third-party-powered subwoofer are set
	appropriately.
	• If using a powered subwoofer with an adjustable crossover, set the crossover to 180Hz.
B1 bass modules powered	• Ensure that at least two B1 bass modules are directly connected to the Bass Module
by a third-party power	Out connector on the power stand using a B1 bass module 4-wire cable.
amplifier and connected to	• Check the gain settings on the third-party power amplifier. The volume level of the B1
the Bass - Line Out	bass modules powered by the power stand should be similar to the bass modules pow-
connector sounds poor
	ered by the external amplifier.
Microphone is	• Orient the microphone so that it is not pointing directly at its respective L1 model II
encountering feedback	Cylindrical Radiator® loudspeaker.
	• Try a different microphone.
	• Try a different position for the loudspeaker and/or vocalist on stage.
	• Increase the distance from the loudspeaker to themicrophone.
	• If using a vocal effects processor, make sure it is not contributing to the feedback
	problem.

20