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20 Connections
Rear Connection Panel
USB Status Light (with Flash Drive Connected)
When connecting a USB flash drive to the USB Input the light
indicates the following statuses:
No color: Idle (no USB device currently connected).
Flashing Green: Reading USB flash drive.
Solid Green: Success. File found and loaded. Okay to remove
USB flash drive.
Solid Red: Failed. Cannot find file or flash drive not formatted
using FAT32 file system.
Flashing Red: Failed. Cannot read drive due to electrical problem.
USB Status Light (with PBK Connected)
When connecting a computer via mini-USB to the PBK Input, the
light indicates the following statuses:
No color: Idle (no USB device currently connected).
Solid Green: Computer connection okay.
Solid Red: Computer connection problem.
Power Status Light
Your subwoofer is equipped with a multi-color LED to indicate the
current status of the subwoofer. This light is identical in function
to the Status light on the subwoofer’s top panel. The following list
explains the meaning of the different colors:
No color: No power. The subwoofer is not plugged in or has
shutdown due to an overload condition. Unplug the subwoofer
and plug it back in to correct.
Green: Play mode. This indicates the subwoofer detects an
audio signal and has automatically switched into play mode.
Red: Standby. Your sub has switched into power saving mode.
USB Input
This input allows you to connect a standard USB flash drive
and upload a custom low-pass filter or update the subwoofer’s
firmware. Custom low-pass filters and firmware updates are dis-
cussed later in this manual. Please note, the PBK Input and USB
Input should never be used at the same time.
PBK Input
This input allows you to connect the optional PBK (Perfect Bass
Kit) room correction system via a mini-USB cable. PBK is dis-
cussed later in this manual. Please note, the PBK Input and USB
Input should never be used at the same time.
Figure 3. Rear connection panel
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