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Sound is not heard from all speakers | L1™ Model II system
If you do not hear sound from a bass module connected to your system, here are some suggestions.
Try the following
Try a different Speakon cable.
If available, connect the bass module with another cable to determine if the cable is the issue. (Note: The bass module connection requires a four-wire Speakon cable. Two-wire cables may not work properly.)
Be sure to connect the bass module with a 4-conductor Speakon cable.
Speakon cables are available in 4 and 2-pin configurations. Your bass module uses a 4-pin Speakon connection to connect to an L1 system.
Note: Some 2-pin cables appear to have 4-pins. To determine if it has 4-pins, unplug the bass module while audio is playing from the L1 system: The system should mute for about one second, then resume playing; if it does not mute, the cable is a 2-pin cable.
Note: Some 2-pin cables appear to have 4-pins. To determine if it has 4-pins, unplug the bass module while audio is playing from the L1 system: The system should mute for about one second, then resume playing; if it does not mute, the cable is a 2-pin cable.
Be sure the bass module Speakon wire is no more than 15 feet long.
If the bass module Speakon wire is longer than 15 feet, the signal sensing circuit may not detect the bass module and the signal may be intermittent.
If using the Bose B2 bass module, be sure the power stand firmware is version 1.4 or greater.
For the Bass Level switch on the back of the B2 to work with the L1 model II, the power stand firmware must be version 1.4 or greater. If it's not, the B2 will only work when the Bass Level switch is in the Normal position. The + or – switch positions only work if the power stand firmware is version 1.4 or greater. For more info, see Checking the software or firmware version and Updating the software or firmware of your product.
Note: L1 model II systems with a DOM (date-of-manufacture) of 2285 (12 Oct 2012) will work with the B2 without updating.
Note: L1 model II systems with a DOM (date-of-manufacture) of 2285 (12 Oct 2012) will work with the B2 without updating.
Check the condition of the L1 connectors, and the L1 connection in the power stand.
If any of the connections are bent or damaged, your product may need service. Follow the link for more information on how to service your product. Depending on your product and region, you will be provided a contact number or the ability to setup service online.
Click here to start service
Click here to start service
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