User manual POLK AUDIO LSI25

[. . . ] Rubber feet and adjustable carpet spikes are included to provide stability on any type of floor. To install them, lay the speaker carefully on its side and screw in the spikes as far as they will go into the threaded inserts in the base of the speaker. You will achieve optimum performance when the speaker is level and stable in all directions. [. . . ] (To find out if your subwoofer output jack is unfiltered, please see your receiver/ preamp/processor's owner's manual. Connect the line level inputs on the back of the loudspeaker to the subwoofer output(s) of your pre-amp, processor, amplifier or receiver. If you only have one subwoofer output jack, run a cable to the subwoofer line level input of one speaker and another cable from the line level output of that speaker to the line level input of the other speaker. If you are not sure about the nature of your subwoofer output jack, use either hookup option 1 or hookup option 2. iNPUTS The "LINE LEVEL IN" jack [figure 8] is a low-level input designed to be connected to an unfiltered pre-amp or subwoofer output on your receiver or processor. Signals fed to this input will pass through the variable Low Pass Crossover (Frequency control) built into the LSi25's subwoofer amplifier. Use this input only if you are using Hook Up Option 3 with a sub-out jack that has a Low Pass Crossover. See your receiver or preamp/processor owner's manual to find out whether or not your Subwoofer Output jack is filtered. AC POWER This LSi powered loudspeaker has a built-in power amplifier and must be plugged into a standard household AC power source in order to operate properly. The power switch on the rear amp plate [figure 8] has three positions, "Off, " "On" and "Auto, "and a small LED light. The LED will glow green at all times that the powered loudspeaker is plugged in (even if the speaker is set to "Off"). In the "Auto" position, the amplifier will automatically turn on as soon as the speaker senses a signal coming from your pre-amp, integrated amp or receiver. It will automatically turn off several minutes after signals cease to be sent by your pre-amp, integrated amp or receiver. In the "On" position, the power amplifier will operate until the switch is set to "Off, " or until the AC cord is disconnected from a power source. " FREQUENCY ADJUSTMENT The FREQUENCY knob adjusts the frequency range over which the subwoofer operates. This control [figure 8] only affects signals that are sent through the "LINE LEVEL IN" jack and the "SPEAKER LEVEL INPUT. [. . . ] Products replaced or repaired under this warranty will be returned to you, within a reasonable time, freight prepaid. This warranty does not include service or parts to repair damage caused by accident, disaster, misuse, abuse, negligence, inadequate packing or shipping procedures, commercial use, voltage inputs in excess of the rated maximum of the unit, cosmetic appearance of cabinetry not directly attributable to defect in materials or workmanship, or service, repair, or modification of the Product which has not been authorized or approved by Polk Audio. This warranty shall terminate if the Serial number on the Product has been removed, tampered with or defaced. [. . . ]