User manual POLK AUDIO DB SUBWOOFER

[. . . ] WIRING DIAGRAMS FOR DB804, DB104, DB124 (Single Voice Coil Hookup) Please make certain that your amplifier is rated to carry the specified load. With speakers wired in parallel: Two 4 Ohm speakers will present a 2 Ohm load. DUAL VOICE COIL WIRING DIAGRAMS FOR DB804DVC, DB104DVC, & DB124DVC Please make certain that your amplifier is rated to carry the specified load. With coils in parallel, a dual 4 Ohm speaker will present a 2 Ohm load. [. . . ] However, damage to loudspeakers can occur when an amplifier, regardless of its wattage, is made to play at higher listening levels than its power can clearly produce (usually beyond the "1 to 2 o'clock" position on the volume control). This results in very high levels of audible distortion, originating in the amplifier, which adds a harsh, gritty sound to the music. Contrary to popular belief, a speaker is more likely to be damaged by trying to get too much volume from a low-powered amp than from a high-powered one. LOW FREQUENCY CUT-OFF FOR MID-RANGE SPEAKERS IN SYSTEMS WITH SUBWOOFERS Now that you have a subwoofer in your system, you may want to decrease the amount of bass going to your midrange speakers. This will get you better mid-range sound and increase the power handling. There are two ways to roll off the bass before it gets to your mid-range speakers. One way is to use a "bass blocker, " a capacitor placed in series with the speaker input. Bass blockers are installed in series, one end connected with the positive lead from your amplifier and the other end connected to the positive lead of each of your Bass blocker capacitors (200 microfarad @ 100volts, non-polarized) are available at any RadioShack or parts supply house. The other route is to use an electronic crossover device that allows filtering below 100Hz or so. TECHNICAL ASSISTANCE OR SERVICE If, after following these hookup and installation directions, you experience difficulty, please double-check all wire connections. Make certain your electronic equipment is operating correctly by hooking up another speaker to the speaker output. For example, if you are not getting sound from the left channel speaker, connect the right channel speaker to the left output. If you still get no sound from that side, the problem is in your amp or source electronics. Should you isolate the problem to the speaker, contact the authorized Polk Audio dealer where you bought your speakers. Authorized Polk Audio dealers are the best source for advice and assistance. Polk Audio's Customer Service Department is available from 9am­6pm, EST, Monday through Friday, at 800-377-7655 (US & Can only, outside the US call 410-358-3600). Please do not hesitate to call us if you have questions about your speaker system. You will find additional information, informative articles, manual updates and cool stuff to buy that has "Polk Audio" all over it by visiting www. Product Disposal - Certain international, national and/or local laws and/or regulations may apply regarding the disposal of this product. For further detailed information, please contact the retailer where you purchased this product or the Polk Audio Importer/Distributor in your country. [. . . ] Or a Polk Audio Dealer has been advised of the possibility of such damages, or any other claim by any other party. Some states do not allow the exclusion or limitation of consequential damages, so the above limitation and exclusion may not apply to you. This Warranty gives you specific legal rights which may vary from state to state. This warranty applies only to Products purchased in the United States of America, its possessions, and U. [. . . ]