User manual POLK AUDIO RM6750

[. . . ] Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. Unplug this apparatus during lightning storms or when unused for long periods of time. [. . . ] When using method #3, it is necessary to adjust the settings on your receiver as follows: · We recommend the following settings as starting points, but the settings that are best for you depend upon your speaker placement, electronics and personal taste. After you've become familiar with what the settings do, experiment with alternate options to find the method that works best for your system setup. Note: When you set up your subwoofer for the first time, you will probably have to make adjustments several times before you hear what you personally like. AC POWER CONNECTION AND AUTO ON/OFF Your subwoofer features auto on/off circuitry, marked "auto" on the power switch, which automatically turns your subwoofer on when it senses a program signal. We recommend the "auto" setting if your subwoofer is always receiving power (ie, if it's plugged into a wall outlet). When no signal is present, the circuit turns the subwoofer off after 15 minutes. If you are concerned about the brief delay between when the music starts and when the subwoofer turns on, simply leave your subwoofer in the "On" position. You may want to leave your system unplugged during extended periods of non use, such as during a vacation. Adjust for deep, powerful bass without "boominess. " · Low Pass--NOTE: This control should be turned all the way up when the subwoofer is connected with Method #1 (LINE IN). This control adjusts the frequency range over which the subwoofer operates. If male vocals sound "thin, " turn this control up until the voice sounds rich but not "boomy. " If male vocals sound too "thick" or "chesty, " turn this control down until the voice sounds natural. ⷠPhase Switch--Sit in your favorite listening position. Play music (not a movie) with a walking bass line. We recommend playing jazz or country music. Now listen carefully for the point at which the subwoofer transitions to your main speakers. This is the crossover point, and this point should be below the frequency of a male human voice. whichever phase setting sounds louder or fuller at the subwoofer's crossover (transition) point is the optimum setting. TROUBLESHOOTING No sound coming from subwoofer If hookup is "Sub Out" to LINE IN, is your receiver set to "Subwoofer--yes" If hookup is via speaker wire, check that the polarity of the wires is correct. if hookup is "Sub Out" to LINE IN , is your receiver set to "Subwoofer--yes" If hookup is via speaker wire , check that the polarity of the wires is correct. Check outlet; check fuse after unplugging the subwoofer and calling customer service. [. . . ] 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. This warranty is in lieu of all other expressed Warranties. If this Product is defective in materials or workmanship as warranted above, your sole remedy shall be repair or replacement as provided above. [. . . ]