Polk Audio LEGEND L800 Owner Manual - Page 8

System Diagnostics If you encounter an issue when setting up your SDA Pro loudspeakers, follow these steps to troubleshoot and make corrections as needed. 1. Start with facing speakers the directly forward and equidistant from the wall. 2. Place a chair in the listening area centered between the speakers. Baffle Smudges Dust baffles with the included dust cloth or any other dry or damp cloth (a damp cloth is one that has been sprayed with a recommended cleaner, not one soaked with water). We recommend you use a lint-free cloth. Dusting the Baffle Use a can of compressed air for the grille and/or baffle to dust. Use a "computer keyboard" vacuum (only on the grille, not the baffle). 3. To check for Absolute Phase, disconnect the (-) black wires from your loudspeaker, leaving the (+) red wires connected. Switch your amplifier to MONO operation or play MONO source music. Rotate the balance control back and forth until you find the lowest sound level. If this occurs near the 12 o'clock position, your speakers are correctly in Absolute Phase. If there is no sound at all, both speakers are out of Absolute Phase and you will need to reverse the connections at either the speakers or the amplifier so that red (+) on the speaker corresponds the red (+) on the amplifier, and so on. If the lowest sound level is heard with the balance control fully to the left, the right speaker is out of phase. If the lowest sound level is heard with the balance control fully to the right, the left speaker is out of phase. Reverse the speaker connections at either the amplifier or the out of phase speaker. 4. Reconnect the (-) black wires to your speakers. Return the amplifier to STEREO operation, making certain that your recording is in STEREO, and sit in the chair to listen for a few minutes. You should hear sound that appears to come from an area outside the two speakers, as well as sound that appears to come from between the speakers. By manipulating the balance control, you should be able to move the apparent sound source from far outside the left speaker to far outside the right speaker. Caring for Your Legend Loudspeakers Enclosure Finish Your Legend enclosures are finished in real natural wood veneer. Clean these panels periodically with a soft cloth and furniture polish to remove dust and fingerprints. Never use harsh detergents and cleaning fluids. Note: Do not use any petroleum-based cleaners or solvents on the loudspeaker cabinets. • Clean wood panels with furniture polish and a soft dry cloth • Do not use furniture polish on black gloss lacquer • Clean black lacquer veneer with a damp cloth Legend Series Specifications Type SDA Pro Floor Standing Tweeter 1" Ring Radiator (x2) Midrange 5.25" (x2) Woofers 10" (x2) Frequency Response (-3dB limits) 32-38000Hz Overall Frequency Response 24-50000Hz Steady State Recommended Am- 25-300W plifier Power 2.83V Sensitivity 87dBSPL Impedance 4Ω (2.8Ω min.) Crossover Tweeter/Midrange Crossover Frequency 2800Hz Midrange/Midbass Crossover Frequency 370Hz Tweeter High Pass Slope (acoustic) 24dB/oct. Midrange Low Pass Slope (acoustic) 24dB/oct. Midrange High Pass Slope (acoustic) 24dB/oct. Woofer Low Pass Slope (acoustic) 24dB/oct. Midrange Enclosure Type Woofer Enclosure Type Dimensions W x H x D (Inches and Metric) (greatest overall depth, grille) Product Weight (each) (Pd and Kilos) Shipping Weight (Pd and Kilos) sealed Power Port 17.94x48.60x17.38in 455.6x1234.5x 441.4mm 118 lb 53.5 kg 151 lb 68.5 kg 1. 8